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CHSE Odisha Vocational Poultry Farming study materials
CHSE Odisha Vocational Poultry Farming study resources

CHSE Odisha Vocational Poultry Farming practice questions

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Question 1Introduction to Poultry Farming and Industry Scenario

In the classification of poultry species commonly reared in Odisha, which of the following is a domesticated bird kept primarily for egg and meat production rather than for ornamental or fighting purposes?

  1. Peafowl
  2. Domestic fowl (Gallus domesticus) Correct answer.
  3. Japanese quail
  4. Red jungle fowl

Explanation

The domestic fowl, Gallus domesticus, is the standard commercial poultry species reared for table eggs and chicken meat across Indian farming systems. Quail and peafowl are not mainstream commercial poultry in Odisha, and the red jungle fowl is the wild ancestor rather than a farmed bird.

Question 2Introduction to Poultry Farming and Industry Scenario

A farmer in a coastal district of Odisha wants a backyard flock that supplies eggs and also tolerates free-range scavenging with minimal purchased feed. Which type of bird best matches this requirement?

  1. Indigenous non-descript desi fowl Correct answer.
  2. Commercial layer hybrid
  3. Turkey
  4. Commercial broiler hybrid

Explanation

Indigenous desi fowl are hardy, disease-tolerant scavengers that thrive on kitchen waste, insects and crop residues with very little purchased concentrate. Commercial hybrids are selected for high input confinement systems and perform poorly under scavenging conditions.

Question 3Introduction to Poultry Farming and Industry Scenario

Which statement correctly describes the contribution of the poultry sector to India's agricultural economy?

  1. Poultry ranks second after cattle in terms of livestock output value, driven mainly by eggs and chicken meat. Correct answer.
  2. Poultry output is measured only in egg numbers and is excluded from livestock gross value estimates.
  3. Poultry is a negligible sub-sector contributing under one percent of livestock output value.
  4. Poultry contributes the largest share of gross value of output among all livestock sectors.

Explanation

Poultry is among the largest livestock sub-sectors in India, generally placed second in output value after cattle, with eggs and broiler meat as the main contributors. Its share of total livestock value is substantial, not marginal.

Question 4Introduction to Poultry Farming and Industry Scenario

An entrepreneur plans a commercial layer unit and needs to estimate the laying cycle. Which statement best reflects the typical productive life of a commercial layer flock?

  1. Hens start laying at about 30 weeks and are culled at 45 weeks of age.
  2. Hens start laying at about 8 weeks and are culled at 30 weeks of age.
  3. Hens start laying at about 24 weeks and are culled at 40 weeks of age.
  4. Hens start laying at about 18-20 weeks and remain productive for roughly 72-80 weeks of age before culling. Correct answer.

Explanation

Commercial layer pullets typically come into lay around 18-20 weeks of age and are kept in production until about 72-80 weeks, after which egg quality and rate decline. This long cycle is central to planning feed, housing and cash flow.

Question 5Introduction to Poultry Farming and Industry Scenario

Which of the following correctly pairs a poultry product with its typical market form in Odisha's poultry value chain?

  1. Table eggs are sold ungraded in bulk sacks, while broiler meat is sold only as value-added sausages.
  2. Table eggs are graded and sold in trays or cartons, while broiler meat is mostly sold as fresh chilled or frozen carcass and cuts. Correct answer.
  3. Table eggs are sold only as hatching eggs, while broiler meat is sold only as live birds.
  4. Table eggs are processed mainly into egg powder for local retail, while broiler meat is exported whole.

Explanation

Eggs move through the market graded by size and packed in trays or cartons, while broiler meat is retailed as fresh chilled or frozen whole birds and cuts. This reflects the standard structure of the Indian poultry value chain.

Question 6Introduction to Poultry Farming and Industry Scenario

Which factor is the single largest component of the total cost of production in a commercial broiler enterprise?

  1. Litter cost
  2. Feed cost Correct answer.
  3. Vaccine cost
  4. Electricity cost

Explanation

Feed accounts for roughly two-thirds to three-quarters of broiler production cost, so feed price and feed conversion efficiency dominate enterprise profitability. Vaccines, litter and electricity are comparatively small cost heads.

Question 7Introduction to Poultry Farming and Industry Scenario

A trainee is asked to explain why the poultry sector in India has grown faster than most other livestock sub-sectors. Which explanation is most defensible?

  1. Poultry has the longest production cycle among livestock, allowing steady long-term capital use.
  2. Short generation interval, high feed conversion efficiency and quick returns on investment attract private enterprise. Correct answer.
  3. Poultry requires the largest land area per bird, which suits Indian landholding patterns.
  4. Poultry production is fully subsidised by government, removing all market risk.

Explanation

Poultry species have short generation intervals, efficient feed conversion and rapid turnover of capital, which makes them attractive to private investors and contract integrators. These biological and economic features explain the sector's fast growth.

Question 8Introduction to Poultry Farming and Industry Scenario

In Odisha, which agency is primarily responsible for implementing state livestock and poultry development programmes and providing veterinary extension services at the district level?

  1. Food Corporation of India
  2. Khadi and Village Industries Commission
  3. Department of Animal Husbandry and Veterinary Services, Government of Odisha Correct answer.
  4. National Bank for Agriculture and Rural Development

Explanation

The state Department of Animal Husbandry and Veterinary Services is the nodal agency for livestock and poultry programmes, including veterinary extension at district and block level. Other listed bodies have different mandates and do not deliver poultry extension.

Question 9Introduction to Poultry Farming and Industry Scenario

Which of the following best describes the term 'integrated poultry farming' as practised by commercial firms in India?

  1. The farmer keeps several livestock species together in one shed to spread risk.
  2. The farmer sells eggs and meat directly to consumers without intermediaries.
  3. The firm rears birds and crops on the same land in a single rotation.
  4. The firm controls several stages such as parent stock, feed milling, hatchery, grow-out and processing under one management. Correct answer.

Explanation

Integration means a single firm or group controls multiple links of the value chain, such as breeder flocks, feed mill, hatchery, grow-out farms and processing. This coordination reduces transaction costs and improves quality control.

Question 10Introduction to Poultry Farming and Industry Scenario

A contract broiler farmer receives chicks, feed and medicine from an integrator and is paid a growing charge based on performance. Which risk does the farmer mainly carry under this arrangement?

  1. Wholesale chicken price fluctuation in the mandi
  2. Chick price fluctuation in the hatchery market
  3. Biological performance and mortality of the flock Correct answer.
  4. Feed price fluctuation in the open market

Explanation

In contract growing, the integrator supplies inputs and bears market price risk, while the farmer is paid on performance indicators such as mortality and feed conversion. The farmer therefore carries mainly biological and management risk.

Question 11Introduction to Poultry Farming and Industry Scenario

Which of the following is a recognised advantage of backyard poultry rearing for rural households in Odisha?

  1. It provides supplementary income and nutrition from low-cost scavenging resources. Correct answer.
  2. It eliminates the need for any vaccination or health care.
  3. It guarantees a fixed monthly income irrespective of market prices.
  4. It requires the same capital investment as a commercial broiler unit.

Explanation

Backyard poultry converts household waste and scavenged feed into eggs and meat, giving families supplementary income and improved protein intake at low cash cost. It does not guarantee fixed income and still requires basic health care.

Question 12Introduction to Poultry Farming and Industry Scenario

Which statement about the egg production performance of improved dual-purpose varieties compared with indigenous desi hens is accurate?

  1. Improved dual-purpose varieties and desi hens have identical annual egg output.
  2. Improved dual-purpose varieties generally lay more eggs per year than desi hens while retaining moderate body size. Correct answer.
  3. Improved dual-purpose varieties lay fewer eggs than desi hens but grow much faster.
  4. Improved dual-purpose varieties are raised only for meat and produce no marketable eggs.

Explanation

Improved dual-purpose strains are selected for both moderate egg numbers and body weight, so they out-lay typical desi hens while remaining suitable for meat. Desi hens usually produce around 40-60 eggs a year, far below improved varieties.

Question 13Introduction to Poultry Farming and Industry Scenario

A planner is comparing the feed conversion ratio of broilers and layers. Which statement correctly interprets the concept?

  1. Feed conversion ratio measures the number of birds that survive to market age.
  2. Feed conversion ratio measures the proportion of eggs that are cracked during handling.
  3. Feed conversion ratio is feed consumed per unit of output, and broilers typically show a lower value than layers for meat production. Correct answer.
  4. Feed conversion ratio is output per unit of feed, and layers always show a lower value than broilers.

Explanation

Feed conversion ratio expresses kilograms of feed needed per kilogram of output, so a lower value indicates greater efficiency. Broilers are selected for meat efficiency and typically achieve FCR values well below 2, whereas egg production is expressed differently.

Question 14Introduction to Poultry Farming and Industry Scenario

Which of the following correctly identifies a major constraint to the growth of the poultry industry in Odisha compared with states such as Andhra Pradesh or Tamil Nadu?

  1. Complete absence of veterinary institutions in the state
  2. Absence of any demand for poultry products within the state
  3. Limited feed milling capacity and dependence on imported maize and soybean meal Correct answer.
  4. Total prohibition of poultry rearing under state law

Explanation

Odisha has a smaller feed milling base and depends substantially on maize and soybean meal from other states, raising feed cost and supply risk. Demand for poultry products is strong and veterinary infrastructure exists, so the other options are factually wrong.

Question 15Introduction to Poultry Farming and Industry Scenario

In poultry terminology, what does the term 'hatching egg' specifically refer to?

  1. A table egg graded for retail sale by weight
  2. A broken egg collected for processing into egg powder
  3. A fertile egg incubated for the purpose of producing chicks Correct answer.
  4. An egg laid by a hen during the first week of lay

Explanation

A hatching egg is a fertile egg, produced by a breeder flock and incubated to yield chicks. Table eggs need not be fertile and are graded for consumption, not incubation.

Question 16Introduction to Poultry Farming and Industry Scenario

A student compares the poultry industry structure of Odisha with the national picture. Which observation is most consistent with available sector information?

  1. Odisha produces a surplus of table eggs and exports them to all other Indian states.
  2. Odisha's poultry sector is dominated by smallholder and backyard production, while commercial layer and broiler units are expanding near urban markets. Correct answer.
  3. Odisha's poultry sector is entirely industrial, with no backyard or smallholder production remaining.
  4. Odisha has no organised poultry markets and relies solely on imports from other countries.

Explanation

Odisha's poultry landscape combines a large backyard and smallholder base with a growing commercial layer and broiler segment serving urban demand. The state is broadly a net importer of eggs and poultry products rather than a surplus exporter.

Question 17Poultry Breeds, Selection and Breeding

Which indigenous Indian breed is well known for laying tinted or brown-shelled eggs and for its excellent foraging ability under backyard conditions?

  1. Leghorn
  2. Kadaknath Correct answer.
  3. Frizzle
  4. Aseel

Explanation

Kadaknath is an indigenous breed from Madhya Pradesh valued for its black plumage and dark meat, and the hens lay tinted eggs while foraging well in free-range backyard systems. Aseel is an indigenous game breed kept mainly for fighting and cock-fighting type conformation, not for egg colour. Leghorn is a Mediterranean egg breed producing white-shelled eggs.

Question 18Poultry Breeds, Selection and Breeding

A poultry farmer wants a breed that combines moderate egg production with good body weight so that both table eggs and culled birds can be sold. Which type of bird best fits this dual-purpose requirement?

  1. Broiler strain
  2. Game breed
  3. Dual-purpose breed Correct answer.
  4. Layer strain

Explanation

Dual-purpose breeds are selected to give acceptable egg numbers as well as reasonable body weight, so the farmer earns from both eggs and spent hens or cockerels. Broiler strains are selected almost entirely for rapid weight gain and have poor laying performance. Layer strains are highly specialised for egg output and carry little meat value.

Question 19Poultry Breeds, Selection and Breeding

In poultry breeding terminology, what does the term 'variety' refer to within a breed?

  1. The age at which birds are shifted from brooder to grower house
  2. A subgroup distinguished by plumage colour, comb type or feather pattern Correct answer.
  3. A completely different species kept on the same farm
  4. The total number of eggs laid in a laying cycle

Explanation

A breed is a group sharing common ancestry and general body characteristics, while varieties are subdivisions of a breed that differ in secondary traits such as plumage colour, comb shape or feather pattern. For example, White Leghorn and Brown Leghorn are varieties of the same breed. Egg numbers and housing age are management measures, not classification terms.

Question 20Poultry Breeds, Selection and Breeding

Which of the following is a characteristic feature of the Aseel breed of poultry?

  1. Small body size with poor fighting ability
  2. Sturdy, muscular body with upright stance and aggressive temperament Correct answer.
  3. Very high annual egg production of over 250 eggs
  4. White plumage with a rose comb and high feed efficiency

Explanation

Aseel is an indigenous game breed from India known for a compact, muscular body, broad breast and upright stance with a pugnacious temperament. Hens lay few eggs and the breed is valued for hardiness and fighting-type conformation rather than egg numbers. Its plumage is usually coloured, not white with a rose comb.

Question 21Poultry Breeds, Selection and Breeding

Which term describes the mating of closely related birds, such as a sire with his own daughters, in a breeding programme?

  1. Inbreeding Correct answer.
  2. Grading
  3. Crossbreeding
  4. Outcrossing

Explanation

Inbreeding is the mating of individuals more closely related than the average of the population, for example parent with offspring or full siblings. It increases homozygosity and is used to fix desirable traits but also raises the risk of inbreeding depression. Outcrossing and crossbreeding involve unrelated or different-breed birds, and grading is repeated mating to an improved breed.

Question 22Poultry Breeds, Selection and Breeding

A farmer wants to identify the sex of day-old chicks in a breed where male chicks are lighter in colour than female chicks. Which method of sexing is being used?

  1. Feather sexing
  2. Colour sexing Correct answer.
  3. Auto-sexing by growth rate only
  4. Vent sexing

Explanation

Colour sexing uses sex-linked genes controlling down colour so that male and female chicks show different colours at hatching. It is possible only in crosses designed with sex-linked colour genes, such as certain crosses involving barred plumage. Vent sexing depends on examining the cloaca, and feather sexing depends on the rate of wing feather growth.

Question 23Poultry Breeds, Selection and Breeding

Which of the following best describes the purpose of selection in a poultry breeding programme?

  1. To increase the number of birds in the flock regardless of quality
  2. To allow all birds equal chance of breeding so that diversity is maximised
  3. To retain genetically superior birds as parents for the next generation Correct answer.
  4. To change the breed of the flock every generation

Explanation

Selection is the deliberate choice of birds with superior genetic merit, based on records of egg production, growth, feed efficiency or other traits, to become parents of the next generation. Over generations this raises the frequency of favourable genes in the flock. Merely increasing numbers or giving all birds equal breeding chance does not achieve genetic improvement.

Question 24Poultry Breeds, Selection and Breeding

A breeder records that a hen laid 280 eggs in her first year while the flock average is 220 eggs. What is the selection differential for this hen?

  1. 60 eggs Correct answer.
  2. 280 eggs
  3. 500 eggs
  4. 40 eggs

Explanation

Selection differential is the difference between the performance of the selected bird and the flock or population average. Here it is 280 minus 220, which equals 60 eggs. It measures how far above average the chosen parent is and partly determines the genetic gain expected in the progeny.

Question 25Poultry Breeds, Selection and Breeding

Which of the following is an example of a sex-linked trait that can be used in poultry breeding programmes?

  1. Egg weight
  2. Comb type
  3. Body weight at eight weeks
  4. Barred plumage pattern Correct answer.

Explanation

The barred plumage pattern is controlled by a gene located on the sex chromosome, so reciprocal crosses give different results in male and female chicks. This allows colour sexing at day-old stage in crosses such as barred hen with non-barred male. Comb type, body weight and egg weight are autosomal or polygenic traits not used for sex-linked chick sexing.

Question 26Poultry Breeds, Selection and Breeding

In a pedigree breeding programme, what is the main advantage of progeny testing a cock?

  1. It guarantees that all daughters will be high layers
  2. It removes the need for any record keeping in the flock
  3. It increases the egg weight of the cock himself
  4. It reveals the breeding value of the cock from the performance of his offspring Correct answer.

Explanation

Progeny testing estimates a sire's breeding value by evaluating the performance of a number of his offspring, which gives a more reliable picture than the sire's own record for sex-limited traits such as egg number. It is especially useful in poultry because males do not lay eggs. The test does not alter the cock's own traits or remove the need for records.

Question 27Poultry Breeds, Selection and Breeding

Which mating system is being practised when local non-descript hens are repeatedly mated to cocks of an improved exotic breed over several generations to upgrade the local flock?

  1. Random mating
  2. Close inbreeding
  3. Strain crossing
  4. Grading or upgrading Correct answer.

Explanation

Grading, also called upgrading, is the repeated mating of successive generations of female progeny to sires of an improved breed so that the local blood level is progressively reduced. It is a practical way to improve village flocks while retaining local hardiness. Inbreeding, strain crossing and random mating do not describe this repeated backcrossing to an improved breed.

Question 28Poultry Breeds, Selection and Breeding

Which of the following statements about hybrid vigour in poultry is correct?

  1. It is the superiority of crossbred progeny over the average of the parent lines, often seen in growth and livability Correct answer.
  2. It is the ability of a pure breed to breed true for all traits
  3. It is the increase in egg size that occurs as a hen ages
  4. It is the loss of performance caused by close inbreeding in a flock

Explanation

Hybrid vigour, or heterosis, is the improved performance of crossbred offspring compared with the average of the parental lines, and it is most marked for fitness traits such as livability, fertility and growth. Commercial broilers and layers exploit this through specific crosses of inbred or selected lines. Inbreeding depression, breeding true and age-related egg size change are different phenomena.

Question 29Poultry Breeds, Selection and Breeding

A breeder wants to improve egg number in a flock but is concerned about inbreeding depression. Which practical step best reduces the rate of inbreeding while still making genetic progress?

  1. Selecting only from one family line in every generation
  2. Mating only the single best cock to all hens for many generations
  3. Replacing the flock with unselected birds each year
  4. Maintaining a sufficiently large effective population size and avoiding mating close relatives Correct answer.

Explanation

The rate of inbreeding depends mainly on effective population size, so keeping a large number of breeding males and females and avoiding matings between close relatives slows the rise in homozygosity while selection continues. Using a single sire or a single family narrows the genetic base and accelerates inbreeding. Unselected replacement gives no genetic progress.

Question 30Poultry Breeds, Selection and Breeding

Which of the following traits is sex-limited and therefore cannot be recorded on male birds during selection for egg production?

  1. Body weight at 20 weeks
  2. Shank length
  3. Plumage colour
  4. Age at first egg Correct answer.

Explanation

Sex-limited traits are expressed in only one sex; egg production traits such as age at first egg and annual egg number are expressed only by females. Males must therefore be evaluated through pedigree, family or progeny information. Body weight, shank length and plumage colour can be recorded in both sexes.

Question 31Poultry Breeds, Selection and Breeding

Which of the following is the most appropriate criterion for selecting pullets for egg production in a small backyard flock where individual trap-nesting records are not maintained?

  1. Selecting birds with the shortest shank length only
  2. Selecting birds that reach sexual maturity early and show good body development with tight, well-feathered plumage Correct answer.
  3. Selecting birds that lay the smallest eggs
  4. Selecting birds with the heaviest body weight regardless of maturity

Explanation

Without individual egg records, the breeder can use easily observed indicators such as early sexual maturity, good body size and condition, and tight, glossy plumage, all of which are associated with good laying potential. Excessively heavy birds tend to be poor layers, and small eggs are an undesirable trait. Shank length alone has little value as a laying criterion.

Question 32Poultry Breeds, Selection and Breeding

In a cross of a barred hen with a non-barred cock, the day-old female chicks are non-barred while the male chicks are barred. What is the practical value of this result to a hatchery?

  1. It proves that the trait is autosomal
  2. It allows the chicks to be sexed by down colour without vent sexing Correct answer.
  3. It indicates that the chicks will all be poor layers
  4. It shows that the hen is homozygous for the non-barred gene

Explanation

Because the barred gene is sex-linked and the hen carries it on her single sex chromosome, daughters inherit the non-barred chromosome from the cock and are non-barred, while sons receive the barred chromosome from the hen and are barred. The hatchery can therefore sort chicks by down colour, avoiding the skilled labour of vent sexing. The result is evidence of sex linkage, not autosomal inheritance.

Question 33Poultry Breeds, Selection and Breeding

A breeder compares two selection strategies for egg number: individual selection on the hen's own record versus selection on the basis of family average. Which statement is most accurate?

  1. Family selection cannot be applied to sex-limited traits
  2. Family selection averages relatives' records and can be more reliable when the trait is lowly heritable Correct answer.
  3. Individual selection always gives lower genetic gain than family selection for every trait
  4. Individual selection ignores the hen's own record entirely

Explanation

Family selection uses the average performance of related birds, which increases the accuracy of estimating breeding value when individual records are strongly influenced by environment, that is, for lowly heritable traits. Individual selection uses the bird's own record and is effective when heritability is high. Neither method is universally superior, and both can be applied to sex-limited traits through female relatives.

Question 34Poultry Breeds, Selection and Breeding

A farmer keeps a flock in which all birds are descendants of a very small number of parents and observes declining fertility, reduced livability and smaller body size over generations. Which phenomenon best explains these observations?

  1. Hybrid vigour
  2. Sex-linked inheritance
  3. Inbreeding depression Correct answer.
  4. Positive heterosis

Explanation

Inbreeding depression is the reduction in performance, especially in fitness traits such as fertility, livability and vigour, that follows increased homozygosity in a closely bred population. A narrow genetic base from very few parents is the typical cause. Hybrid vigour and heterosis describe the opposite improvement seen in crossbreds, and sex-linked inheritance concerns gene location on sex chromosomes.

Question 35Poultry Breeds, Selection and Breeding

Which statement correctly distinguishes a strain from a breed in poultry breeding?

  1. A strain is simply any bird with a different plumage colour
  2. A strain is a taxonomic rank above species
  3. A strain is a population within a breed that has been selected for specific traits and may differ in performance from other strains Correct answer.
  4. A strain always has a different chromosome number from the breed

Explanation

A strain is a subpopulation within a breed developed by a breeder or institution through selection for particular traits, so strains of the same breed can differ markedly in performance while remaining interfertile. Breeds are broader groups with common ancestry and general characteristics. Chromosome number does not differ among strains of a species, and plumage colour alone defines a variety, not a strain.

Question 36Poultry Breeds, Selection and Breeding

A breeder wants to produce commercial layer hybrids that perform uniformly. Which breeding approach is most consistent with this goal?

  1. Crossing selected inbred or pure lines and selling the F1 hybrid progeny Correct answer.
  2. Continuous close inbreeding of the commercial flock sold to farmers
  3. Mating birds of unknown parentage each season
  4. Random mating of village birds with no records

Explanation

Commercial layer and broiler hybrids are produced by crossing selected pure lines so that the F1 offspring show uniform performance and hybrid vigour. The parent lines are maintained separately and the cross is repeated for each commercial batch. Random mating, continued inbreeding of the commercial stock or unknown parentage would not give the uniformity and vigour required.

Question 37Housing, Equipment and Farm Layout

In a backyard poultry unit in coastal Odisha, which orientation is recommended for the long axis of a open-sided poultry shed?

  1. East-west, so that the long side faces the sun Correct answer.
  2. Any orientation, since orientation does not affect ventilation
  3. Along the prevailing wind direction, to catch maximum breeze
  4. North-south, to reduce direct sun on the long walls

Explanation

In hot humid climates, a shed with its long axis running east-west keeps the long side walls shaded for most of the day, reducing heat load on the birds. The ridge should run east-west with wide eaves and open sides. North-south orientation exposes one long wall to strong sun at some part of the day.

Question 38Housing, Equipment and Farm Layout

Which type of poultry house is most suitable for a small vocational farmer in Odisha who wants low-cost, well-ventilated housing for 50 to 100 birds?

  1. Open-sided deep-litter shed with wire-mesh sides Correct answer.
  2. Environmentally controlled house with tunnel ventilation
  3. Two-storey cage house with automatic feeding
  4. Underground pit house with forced air

Explanation

An open-sided shed with wire-mesh or bamboo lattice sides and a deep-litter floor gives natural cross-ventilation at low cost, which suits small flocks in warm humid regions. Environmentally controlled houses need reliable power and high capital.

Question 39Housing, Equipment and Farm Layout

What is the standard recommended floor space per adult bird for deep-litter broiler rearing in a tropical open shed?

  1. About 0.35 square metre per bird Correct answer.
  2. About 3 square metres per bird
  3. About 0.05 square metre per bird
  4. About 1.5 square metres per bird

Explanation

Deep-litter broilers are normally stocked at roughly 10 to 12 birds per square metre, which is about 0.08 to 0.1 square metre per bird in controlled houses, but in open tropical sheds with natural ventilation a more generous allowance near 0.35 square metre per bird is used to limit heat stress. Very high or very low densities are both wrong.

Question 40Housing, Equipment and Farm Layout

A farmer notices that litter in the brooder area has become wet and caked under the drinkers. Which management measure best corrects this?

  1. Add more water to the litter to dilute the droppings
  2. Increase bird density to absorb moisture
  3. Raise the drinkers and provide a slatted or raised platform under them Correct answer.
  4. Seal the shed to retain warmth

Explanation

Wet litter under drinkers arises from spillage and droppings. Raising drinkers to the correct height for the birds and placing them over a slatted platform or wire mesh lets spilled water drain away, keeping litter dry. Dry litter prevents coccidiosis and ammonia build-up.

Question 41Housing, Equipment and Farm Layout

Which brooder appliance is designed to provide warmth from above without a visible flame and is commonly used for small chick batches?

  1. Charcoal sigri placed on litter
  2. Kerosene pressure lantern
  3. Infrared electric brooder lamp Correct answer.
  4. Open wood fire in the shed

Explanation

An infrared electric brooder lamp hangs above the chicks and radiates heat downward, giving even warmth with low fire risk and no fumes. It is widely used for small batches where gas or central brooders are uneconomical.

Question 42Housing, Equipment and Farm Layout

What is the main purpose of providing a wire-mesh skirt or curtain along the lower sides of an open poultry shed?

  1. To prevent entry of predators and rodents while allowing air movement Correct answer.
  2. To increase the height of the shed
  3. To collect rainwater from the roof
  4. To improve the appearance of the farm

Explanation

A wire-mesh skirt closes the gap between the floor and the side wall, blocking dogs, snakes and rodents from entering, while the open mesh still permits cross-ventilation. It is a standard predator-proofing measure in open-sided sheds.

Question 43Housing, Equipment and Farm Layout

A vocational trainee is planning a farm layout. Where should the feed store be placed relative to the poultry sheds?

  1. Inside the brooder shed to save space
  2. Between two sheds with open sides facing the litter
  3. Adjacent to the sheds but with a covered, dry floor and easy vehicle access Correct answer.
  4. At the far end of the farm downwind of the sheds

Explanation

The feed store should be close enough for easy transport but dry, covered and protected from damp and rodents, so feed quality is preserved. Placing it downwind and away from sheds reduces contamination by dust and odour.

Question 44Housing, Equipment and Farm Layout

Which drinker type is most appropriate for day-old chicks in the first week?

  1. Large circular bell drinker filled to the brim
  2. Nipple drinker line at adult height
  3. Shallow chick drinker or fountain with a small trough Correct answer.
  4. Open cement tank shared with the brooder

Explanation

Chicks need shallow water they can reach without drowning, so small chick fountains or shallow troughs are used in the first week. Drinkers are gradually replaced by larger bell or nipple systems as the birds grow.

Question 45Housing, Equipment and Farm Layout

Why are feeders and drinkers spaced alternately around the shed rather than grouped at one end?

  1. To ensure all birds have equal access and to prevent crowding and bullying Correct answer.
  2. To make cleaning the shed easier
  3. To keep the litter dry at the entrance
  4. To reduce the total number of feeders needed

Explanation

Even distribution of feeders and drinkers across the floor gives every bird ready access and prevents dominant birds from guarding equipment. Crowding at one end also causes wet litter and uneven growth.

Question 46Housing, Equipment and Farm Layout

Which roofing material is generally preferred for a low-cost poultry shed in a hot region because it reflects heat and is lightweight?

  1. Black polythene sheet
  2. Thick concrete slab
  3. Asbestos cement sheet
  4. Corrugated galvanised iron sheet painted white or reflective Correct answer.

Explanation

Corrugated galvanised iron, especially when painted white or with a reflective coating, reflects solar radiation and is light and cheap. An insulating underlayer of thatch or grass may be added to reduce heat transfer.

Question 47Housing, Equipment and Farm Layout

What is the recommended height of the side wall (eave) in a tropical open-sided poultry shed to allow good airflow?

  1. About 0.5 metre
  2. About 6 metres
  3. About 1 metre
  4. About 2 to 2.5 metres Correct answer.

Explanation

Eave heights of roughly 2 to 2.5 metres allow air to move above the birds and let hot air escape under the ridge. This reduces heat stress in a hot humid climate. Very low eaves trap heat and stale air.

Question 48Housing, Equipment and Farm Layout

A farmer wants to disinfect a shed between batches. Which practice is part of correct terminal cleaning?

  1. Remove all litter and equipment, wash, dry, then apply disinfectant Correct answer.
  2. Spray disinfectant directly onto dirty litter and old droppings
  3. Use only water and skip drying before restocking
  4. Apply disinfectant while the birds are still inside

Explanation

Effective terminal cleaning removes organic matter first, because dirt inactivates most disinfectants. The shed is then washed, allowed to dry, and only then sprayed with disinfectant before restocking.

Question 49Housing, Equipment and Farm Layout

Which equipment is used to maintain a constant water level in a poultry drinker line supplied from an overhead tank?

  1. Anemometer
  2. Hygrometer
  3. Float valve regulator Correct answer.
  4. Thermostat

Explanation

A float valve regulator in the header tank or drinker line keeps water at a constant level and pressure as birds drink. This prevents flooding of drinkers and keeps the litter dry.

Question 50Housing, Equipment and Farm Layout

In a deep-litter shed, which litter depth is generally recommended for broilers?

  1. 25 to 30 centimetres
  2. 50 centimetres
  3. 1 to 2 centimetres
  4. 5 to 8 centimetres Correct answer.

Explanation

A litter depth of about 5 to 8 centimetres absorbs droppings and moisture without becoming soggy, and allows scratching. Deeper litter can stay wet at the base and harbour pathogens.