Livestock Reproductive Biology
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Questions and Answers

What is the term for the ability to produce a large number of offspring at frequent intervals?

  • Fecundity (correct)
  • Prolificacy
  • Impotency
  • Sterility

    • What is the term for a male cattle whose testes has been removed or castrated after reaching sexual maturity?

  • Bullock
  • Stag (correct)
  • Yearling
  • Steer

    • What is the term for a female carabao?

  • Caracow (correct)
  • Freemartin
  • Caracalf
  • Carabull

    • What is the term for a cattle that is naturally or genetically hornless?

    <p>Polled cattle</p> Signup and view all the answers

    What is the term for the inability to produce normal offspring?

    <p>Sterility</p> Signup and view all the answers

    What is the term for a young cattle that is being fed and cared for, primarily for growth?

    <p>Stockers</p> Signup and view all the answers

    What is the term for a male cattle whose testes has been removed or castrated before reaching sexual maturity?

    <p>Steer</p> Signup and view all the answers

    What is the term for a young offspring of a carabao?

    <p>Caracalf</p> Signup and view all the answers

    What is the approximate age of puberty of a female chicken?

    <p>4-6 months</p> Signup and view all the answers

    What is the term for a female swine that has not yet produced any young?

    <p>Gilt</p> Signup and view all the answers

    What is the term for the feather of a fowl?

    <p>Plumage</p> Signup and view all the answers

    What is the term for a group of piglets born in one farrowing?

    <p>Litter</p> Signup and view all the answers

    What is the process of removing the primary sex organs of a male animal specifically for poultry?

    <p>Caponization</p> Signup and view all the answers

    What is the normal temperature of a chicken?

    <p>40-42 C</p> Signup and view all the answers

    How many days is the gestation period for poultry?

    <p>114 days</p> Signup and view all the answers

    What is the term for a male goat that has been castrated after sexual maturity?

    <p>Stag goat</p> Signup and view all the answers

    What is the term for a male chicken rendered sterile by the removal of the testicles?

    <p>Capon</p> Signup and view all the answers

    What is the term for a chicken raised primarily for meat production?

    <p>Broiler</p> Signup and view all the answers

    What is the average number of offspring per parturition for poultry?

    <p>8-10</p> Signup and view all the answers

    What is the term for a group of goats?

    <p>Band</p> Signup and view all the answers

    What is the term for the hair of a goat?

    <p>Mohair</p> Signup and view all the answers

    What is the term for the biological process of shedding off feathers?

    <p>Molting</p> Signup and view all the answers

    At what age do male poultry typically reach puberty?

    <p>4-8 months</p> Signup and view all the answers

    What is the term for the act of laying an egg?

    <p>Oviposition</p> Signup and view all the answers

    What is the term for the undressed skin of a goat with its hair?

    <p>Pelt</p> Signup and view all the answers

    What is the typical ratio of females to males in poultry breeding?

    <p>25-50</p> Signup and view all the answers

    What is the normal temperature range for poultry?

    <p>38.9-39.5 C</p> Signup and view all the answers

    What is the term for a female breeding chicken?

    <p>Hen</p> Signup and view all the answers

    At what age does a female chicken typically reach puberty?

    <p>4-7 months</p> Signup and view all the answers

    What is the term for a pig that is ready for market or butchering?

    <p>Market Hog</p> Signup and view all the answers

    What is the term for the hatching process of a fertile egg?

    <p>Incubation</p> Signup and view all the answers

    What is the typical volume of ejaculate for a male poultry?

    <p>200-300 cc</p> Signup and view all the answers

    What is the duration of the estrous cycle in ducks?

    <p>20 days</p> Signup and view all the answers

    What is the purpose of candling an egg?

    <p>To determine the fertility of the egg</p> Signup and view all the answers

    What is the age of puberty in a duck?

    <p>4-6 months</p> Signup and view all the answers

    What is the term for a partially incubated egg that is boiled and sold for human consumption?

    <p>Balut</p> Signup and view all the answers

    What is the term for a young duck of either sex?

    <p>Duckling</p> Signup and view all the answers

    What is the normal temperature of a duck?

    <p>38-40°C</p> Signup and view all the answers

    What is the term for a female duck used for breeding?

    <p>Duck hen</p> Signup and view all the answers

    What is the expected productive life of a duck in years?

    <p>6-10 years</p> Signup and view all the answers

    Study Notes

    Cattle Terminology

    • Steer: a male cattle whose testes have been removed/castrated before reaching sexual maturity.
    • Stag: a male cattle whose testes have been removed/castrated after sexual maturity.
    • Stag Bullock: used for doing work or as a draft animal.
    • Yearling: a cattle of either sex that is between 1-2 years old.
    • Short Yearling: a yearling between 1-1 ½ years old.
    • Long Yearling: a yearling between 1 ½ - 2 years old.
    • Sterility: the inability to produce normal young.
    • Impotency: failure to copulate.
    • Castration: the process of removing the primary sex organ of the male animal.
    • Freemartin: an imperfectly sexed and infertile heifer born with a bull.
    • Carabull: a mature male breeding carabao.
    • Caracow: a mature female breeding carabao.
    • Caracalf: young offspring of a carabao.

    Swine Terminology

    • Gilt: a female swine that has not yet produced any young.
    • Litter: a group of piglets in one farrowing.
    • Litter Size: the number of piglets in a litter born in one farrowing.
    • Farrowing: the act of giving birth in swine.
    • Stockers: young cattle being fed and cared for, aiming for growth rather than improvement.
    • Polled Cattle: naturally or genetically hornless cattle.

    Poultry Terminology

    • Chick: a young chicken of either sex until weaning.
    • Baby Chick: a very young newly hatched chick, usually from 1-3 days old.
    • Sexed Baby Chick: baby chicks classified as to their sex.
    • Pullet: a young female chicken at least 10 weeks old until first day of laying.
    • Cockerel: a male chicken at least 10 weeks old until sexual maturity.
    • Capon: a male chicken rendered sterile by the removal of the testicles.
    • Caponette: a male chicken rendered sterile through the administration of certain drugs or hormones like diethylstilbestrol.
    • Spayed Chicken: a female chicken rendered sterile by the removal of the ovaries.

    Physiological Phenomena

    • Age of Puberty of Female: 4-7 months.
    • Estrous Cycle (Days): 20.
    • Estrous Length: 48-72 hours.
    • Time of Ovulation: Mid estrous or 30 hours after start of estrous.
    • Gestation (Days): 114 days.
    • Offspring per Parturition: 8-10.
    • Age of Puberty of Male (Months): 4-8 months.
    • Female to Male at Normal Breeding: 25-50.
    • Normal Temperature: 38.9-39.5°C.
    • Mammary Glands: 4-9 pairs.
    • Volume Ejaculate (cc): 200-300.
    • Sperm/ cc: 100-200 billion.
    • Normal Respiration Rate/ min: 15-24.
    • Normal Heart Rate/ min: 60-80.
    • Expected Productive Life (Years): 6-8.

    Goat Terminology

    • Stag Goat: a male goat castrated after sexual maturity.
    • Chevon: the meat of the goat.
    • Pelt: undressed skin of the goat with its hair.
    • Mohair: the hair of the goat.
    • Band: grouping in goats.

    Duck Terminology

    • Balikbayan: refers to ducks that have done first to second laying year and are being sold as ready to lay.
    • Brooding: a period when duckling is provided with heat either by natural or artificial means.
    • Broody: trait of ducks characterized by desire to sit on the eggs.
    • Candling: process of placing the egg before a strong light to get an outline of the egg content and detect fertile and infertile eggs.
    • Infertile Eggs: egg set in the incubator and found to contain no developing embryo after candling.

    Physiological Phenomena in Ducks

    • Age of Puberty of Female (Months): 7-10 months.
    • Estrous Cycle (Days): 20.
    • Estrous Length: 34-38 hours.
    • Time of Ovulation: Late estrous, 18-26 hours after start of heat.
    • Gestation (Days): 148 days.
    • Offspring per Parturition: 2.
    • Age of Puberty of Male (Months): 4-6 months.
    • Female to Male Ratio at Normal Breeding: 30-50.
    • Normal Temperature: 38-40°C.
    • Mammary Glands: 2.
    • Volume Ejaculate (cc): 1.
    • Sperm/ cc: 2.0 billion.
    • Normal Respiration Rate/ min: 12-20.
    • Normal Heart Rate/ min: 70-80.
    • Expected Productive Life (Years): 6-10.

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    Description

    This quiz covers the basics of livestock reproduction, including terms related to cattle reproduction and fertility.

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