Breeding grand test livestock - YLB Online Educational Forum

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1. Which breeding system is especially useful for combining complementary traits of two breeds?

A.Close inbreeding

B.Random mating only

C.Cloning

D.Crossbreeding

2. Why are breed records useful in livestock improvement?

A.They remove environmental effects completely

B.They help compare performance and make informed selection decisions

C.They replace all animal care

D.They guarantee every offspring is superior

3. Which breeding method involves mating animals of the same breed?

A.Interspecies hybridization

B.Crossbreeding

C.Pure breeding

D.Grading up

4. Which practice supports sustainable livestock production?

A.Matching herd size to available feed and resources

B.Allowing uncontrolled soil degradation

C.Ignoring animal health

D.Overstocking beyond carrying capacity

5. Livestock can support crop production by providing:

A.No farm services

B.Only plastic materials

C.Synthetic fertiliser from nothing

D.Draft power and manure in suitable farming systems

6. Which breeding method introduces unrelated animals of the same breed into a herd?

A.Linebreeding

B.Grading up

C.Outcrossing

D.Inbreeding

7. Which trait is an example of reproductive performance in livestock?

A.Ear shape only

B.Coat colour only

C.Horn length only

D.Conception rate

8. Why is breed improvement economically important?

A.It makes management unnecessary

B.It always eliminates production costs

C.It can raise productivity and improve product quality

D.It guarantees identical prices worldwide

9. Which is a functional trait important in many livestock systems?

A.Disease resistance

B.Horn symmetry alone

C.Coat colour preference alone

D.Ear shape alone

10. Livestock can act as a financial asset for rural households because they:

A.Always increase in value regardless of conditions

B.Cannot be exchanged for money

C.Have no market value

D.Can be sold to meet cash needs

11. Which economic risk can affect livestock farmers?

A.Guaranteed unlimited demand

B.No price fluctuations

C.Permanent absence of feed costs

D.Disease outbreaks that reduce productivity and increase costs

12. Which of the following is a productive trait in dairy animals?

A.Horn direction only

B.Milk-fat percentage

C.Ear length only

D.Tail colour only

13. Which is an example of value addition in the livestock sector?

A.Discarding all milk

B.Processing milk into cheese or yoghurt

C.Reducing product quality deliberately

D.Avoiding all market access

14. Which breed characteristic is especially relevant to poultry kept for egg production?

A.Hump size

B.Wool staple length

C.Egg number and shell quality

D.Horn shape

15. Why should breed selection reflect market demand?

A.It removes transport costs completely

B.It helps farmers produce products consumers are willing to buy

C.It makes product quality irrelevant

D.It guarantees a monopoly

16. Which characteristic is most directly associated with dairy cattle selection?

A.Wool fineness

B.Milk yield

C.Egg shell thickness

D.Carcass feathering

17. Which service-sector activity is linked to livestock farming?

A.Deep-sea mining only

B.Mobile phone manufacturing only

C.Aircraft engine production only

D.Veterinary care and animal health services

18. A breed's mature body size can influence:

A.The number of chromosomes in all breeds

B.Whether inheritance occurs

C.Maintenance feed requirements and production potential

D.The animal's species identity every season

19. Which statement best summarizes livestock's role in the agricultural economy?

A.Livestock provide food, income, employment, inputs, and risk-buffering assets

B.Livestock are useful only in industrial economies

C.Livestock contribute only to farm decoration

D.Livestock have no connection to crop farming

20. Which is a common risk of close inbreeding?

A.Guaranteed hybrid vigor

B.Inbreeding depression

C.Increased genetic diversity

D.Complete disease resistance

21. Which description best fits a dual-purpose breed?

A.A breed kept only for racing

B.A breed that cannot reproduce

C.A breed used for both milk and meat production

D.A breed used only for wool dyeing

22. How can livestock support crop farmers during periods of crop failure?

A.Livestock always prevent drought

B.Livestock sales may provide a reserve source of income

C.Animals make rainfall unnecessary

D.Livestock guarantee crop harvests

23. How can healthy livestock improve farm profitability?

A.By eliminating the need for markets

B.By making feed irrelevant

C.By stopping reproduction

D.By reducing losses and supporting reliable production

24. Livestock manure is economically useful because it can:

A.Prevent every crop disease

B.Make soil nutrients unnecessary

C.Replace all irrigation permanently

D.Supply nutrients and improve soil organic matter

25. Which trait is often used to assess growth performance in young livestock?

A.Coat pattern only

B.Ear movement

C.Average daily gain

D.Horn curvature

26. Mating closely related animals within the same breed is known as:

A.Species crossing

B.Inbreeding

C.Crossbreeding

D.Outcrossing

27. Mating animals from two different breeds of the same species is called:

A.Crossbreeding

B.Cloning

C.Inbreeding

D.Pure breeding

28. Which trait is commonly important when selecting beef cattle?

A.Wool length

B.Egg production

C.Carcass quality and growth rate

D.Milk fat alone

29. Embryo transfer is used to:

A.Obtain offspring from genetically valuable females more rapidly

B.Stop ovulation permanently

C.Change an animal's species

D.Reduce the number of offspring from elite females

30. A major purpose of progeny testing is to:

A.Estimate a breeding animal's genetic merit from its offspring

B.Determine feed prices

C.Identify an animal's age from teeth only

D.Measure only the animal's body weight

31. Which term describes the superiority of crossbred offspring over the average of their parents?

A.Inbreeding depression

B.Heritability

C.Adaptation

D.Heterosis

32. Which breeding goal is most appropriate for a low-input rural farm?

A.Choose a breed solely by appearance

B.Improve productivity while retaining adaptation and resilience

C.Select only for maximum size regardless of feed

D.Ignore fertility and survival

33. Which characteristic helps livestock cope with local environmental conditions?

A.Adaptability

B.Market price alone

C.Pedigree length alone

D.Inbreeding coefficient alone

34. A locally adapted breed may be valuable because it often:

A.Always produces more than every exotic breed

B.Needs no veterinary care

C.Performs better under local climate and management conditions

D.Cannot transmit traits to offspring

35. What is the main objective of selective breeding?

A.To prevent reproduction

B.To reduce feed intake to zero

C.To improve desirable heritable traits

D.To eliminate all variation

36. The mating of animals from different species is generally called:

A.Outcrossing

B.Interspecific hybridization

C.Pure breeding

D.Linebreeding

37. Grading up usually involves repeatedly mating local females with:

A.Unrelated females of the same local herd

B.Animals of another species

C.Purebred males of an improved breed

D.Castrated males

38. Which statement about breed characteristics is correct?

A.Every breed excels in every production trait

B.Environment never affects performance

C.Traits vary among breeds and also among individuals within a breed

D.All animals of a breed are genetically identical

39. Livestock contribute to agricultural economies by providing:

A.Only non-renewable minerals

B.Only ornamental value

C.Meat, milk, eggs, fibre, and other products

D.No marketable goods

40. Sales of livestock products can provide farmers with:

A.Only expenses and no returns

B.Income and employment opportunities

C.No contribution to household income

D.A guaranteed fixed profit in every season

41. Which factor should be considered when choosing a breed for a farm?

A.The breed's name only

B.The tallest animal only

C.Coat colour alone

D.Climate, feed resources, production goals, and management

42. Livestock production can contribute to rural livelihoods through:

A.Employment only in cities

B.Removing demand for veterinary services

C.Ending all small businesses

D.Jobs in rearing, processing, transport, and marketing

43. Livestock are important in mixed farming because they can:

A.Make all crop residues poisonous

B.Prevent crop rotation

C.Eliminate the need for land

D.Convert crop residues and by-products into useful products

44. Which technique allows semen from a superior male to be used to inseminate many females?

A.Castration

B.Embryo sexing only

C.Artificial insemination

D.Natural service only

45. A breed adapted to hot, dry conditions is likely to have:

A.No need for feed

B.Very low heat tolerance

C.A requirement for constant cold weather

D.Heat tolerance and efficient water use

46. Which livestock product is a source of dietary protein?

A.Cement

B.Diesel

C.Plastic

D.Milk

47. What is one benefit of maintaining genetic diversity in livestock populations?

A.It prevents all diseases

B.It guarantees that all animals are identical

C.It removes all inherited variation

D.It provides options for future breeding and adaptation

48. Linebreeding is generally designed to:

A.Prevent inheritance

B.Remove all recessive genes immediately

C.Cross unrelated species

D.Maintain a high relationship to a desirable ancestor

49. In livestock improvement, artificial insemination means:

A.Selecting animals by appearance only

B.Transferring an embryo without fertilization

C.Allowing only natural mating

D.Introducing semen into the female reproductive tract by artificial means

50. Which sheep characteristic is especially important in wool-producing breeds?

A.Wool quality and fleece yield

B.Comb size

C.Draft power

D.Milk let-down only

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