Sheep Breeding

Studies in the Agricultural and Food Sciences

2nd Edition - January 1, 1979
Editors: G.L Tomes, D.E. Robertson, R.J. Lightfoot
Language: English
eBook ISBN:
9 7 8 - 1 - 4 8 3 1 - 6 2 1 3 - 3

Sheep Breeding, Second Edition covers sheep breeding in its widest context through a collection of papers about sheep breeding from experts in the field across the globe. The book… Read more

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Sheep Breeding, Second Edition covers sheep breeding in its widest context through a collection of papers about sheep breeding from experts in the field across the globe. The book incorporates sections composed of general review articles and important research findings on the structures and objectives of national sheep industries from many of the major sheep-producing areas of the world. The text also discusses the genetic selection and breed improvement; stud breeding and cooperative breeding schemes; reproduction in the ewe; and male reproduction and artificial insemination. The monograph is recommended for those who wish to learn different techniques and practices in raising and breeding sheep, especially those who are new in the field. The book is also for those who wish to conduct research that would help improve raising and breeding sheep.

I National Sheep Industries–Structure, Breeds and Objectives

1 The Sheep and Wool Industry of Australia-A Brief Overview

2 Australian Sheep Breeding Programs-Achievements and The Future

3 Sheep Breeding in France

4 National Sheep Breeding Programs New Zealand

5 Sheep Breeding Programs in South Africa

6 Sheep in South-East Asia

7 Sheep Breeding in the U.S.A.

8 National Sheep Breeding Programs-Great Britain

9 Sheep Breeding in Uruguay

10 The Sheep Industry and Sheep Breeding in Russia

II Genetic Selection and Breed Improvement

11 Methods of Improving Production in Characters of Importance

12 Response to Selection for Increased Fleece Weight in Merino Sheep

13 Selection of Merino Rams for Wool Production Efficiency

14 Selection for Increased Profitability in a Fine Wok Merino Flock

15 The Impact of Environmental Factors on Sheep Breeding in the Semi-Arid Tropics

16 Husbandry and Genetic Considerations Affecting Sheep Breeding in the Semi-Arid Tropics

17 The Influence of Parasites on Selection Parameters in Sheep

18 Genetic Improvements of Fertility and Fly Resistance

19 Problems in the Use of Exotic Genotypes

20 Exploitation of Exotic Genotypes

21 A Cross-Breeding Experiment with Finnish Landrace, Ile de France and Texel. Some Preliminary Results

22 The Need for Dual-Purpose Sheep

23 Development of the Gromark-A New High Performance Dual-Purpose Sheep Breed

24 Growth of Dissectible Fat in the Merino

III Group Breeding Schemes and Stud Breeding

25 The Theory Behind Breeding Schemes

26 The Promotion of Breeding Schemes among Stud Breeders

27 Sociological, Economic, Business and Genetic Aspects of Sheep Group Breeding Schemes

28 Advantages of Group Breeding Schemes

29 The Australian Merino Society Nucleus Breeding Scheme

30 Stud Merino Breeding

31 The Use of Fleece Measurement in Sire Selection by Western Australian Stud Breeders

32 Factors Influencing The Efficiency with Which Merino Studs Select for Increased Wool Production

33 The Coolah High Fertility Merino Flock-A Co-operative Group Breeding Scheme

34 The Development of Co-operative Breeding Schemes in New Zealand

35 Productive Levels of Sheep in New Zealand and Programs Aimed at Improvement

IV Reproduction in the Ewe

36 Limitations to Female Reproductive Efficiency

37 Embryo Mortality

38 Evidence and Confirmation of Late Embryo Loss in a Flock of Merino Ewes

39 Returns to Service, Embryonic Mortality and Lambing Performance of Ewes with One and Two Ovulations

40 Ram and Ewe Effects on Fertility in Sheep Breeds and Strains Differing in Reproductive Potential

41 Ovulation and Lambing Results with Booroola and Booroola-Cross Merino Ewes in Western Australia

42 Lupin Stubbles and Ewe Fertility

43 The Fertility of Merino Ewes Grazed on Standing, Unharvested Sweet Lupins Prior to and During Joining

44 Age of Ewe and Response to Lupins: Effect of Lupin Supplementation on Ovulation Rate

45 Clover Disease in Western Australia

46 Genetic Aspects of Puberty in Merino Ewes

47 Assessment of New and Traditional Techniques of Selection for Reproduction Rate

48 Synchronization of Ovulation

49 Controlled Breeding of Sheep and Goats

50 Manipulation of The Breeding Cycle

51 Use of a Prostaglandin Analogue (ICI 80996) for The Synchronization of Oestrus and Lambing in Merino Ewes

52 Culture, Storage and Transfer of Sheep Embryos

53 Ovarian Steroid Secretion in Sheep during Anoestrus

V Male Reproduction and Artificial Insemination

54 Mating Behavior in Sheep

55 Behavioral Principles as a Foundation for Sheep Management

56 Sexual Activity in Merino Rams

57 Semen Quality and Quantity in the Ram

58 Some Problems of Evaluating Semen Quality

59 Factors Affecting The Fertility of Diluted Ram Semen

60 Storage of Ram Semen

61 Fertility after Non-Surgical Intra-Uterine Insemination with Frozen-Pelleted Semen in Ewes Treated with Prostaglandin F2α

62 Studies in Artificial Insemination of Sheep in Western Australia

63 Organization of Artificial Breeding Programs of Sheep in Western Australia

64 Artificial Insemination of Sheep in the Soviet Union

65 The Effect of Feeding a High Protein Supplement before Joining on Testicular Volume of Rams

Index