Boer goat
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| Conservation status | |
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| Other names |
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| Country of origin | South Africa |
| Distribution | international |
| Standard | SA Boer Goat Breeders' Association |
| Use | meat |
| Traits | |
| Weight | |
| Height | |
| Horn status | horned in both sexes |
| Tassels | no |
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The Boer or Boerbok is a South African breed of meat goat.[2] It was selectively bred in the Eastern Cape from about 1920 for meat qualities and for the ability to survive by grazing on the thorn veldt of that region.[4]: 363 It has been exported to many countries, and has been used to improve the meat qualities of other breeds.[5]: 10 [3]
History
[edit]The Boer was bred from the indigenous South African goats kept by the Namaqua, San, and Fooku tribes, with some crossing of Indian and European bloodlines being possible.
A census in the Cape Colony in 1891 found 3444019 head.[6]: 65
Characteristics
[edit]The Boer is a large goat: the average weight of an adult male is some 115 kg, with a mean height reported in 1984 at over 94 cm.[4]: 363 [2] The coat is glossy and short; the recommended colouring is white with a reddish-brown brown head and pigmented skin. The ears and horns are of medium size, the ears broad, pendulous and smooth, the horns dark in colour, backward-curving, round and solid.[4]: 363
It is well adapted to grazing on a wide variety of local biomes, including sourveld, coastal veld, mixed veld and thornveld.[7]: 83 It has a fast growth rate and good carcass qualities, good resistance to disease and good adaptation to hot, dry semi-desert conditions.[citation needed]
The does are polyoestrous and are capable of breeding at any time of year; the natural breeding season is in April and May (i.e., in autumn in the Southern Hemisphere), and breeding activity is at its lowest in late spring and early summer, or approximately November to January.[8]: 171 The oestrous cycle lasts approximately 21 days, the oestrus some 30–45 hours.[8]: 171 The average gestation period is approximately 148 days, and the anoestrous post-partum period varies from some 30 to 80 days; conception is usually confirmed between 42 and 82 days after parturition.[8]: 171
The age of puberty in doe kids depends on the season of their birth, varying from a mean of about 157 days for those born in mid-summer (January) – and thus weaned in the natural autumn (April/May) breeding season – to about 191 days for those born in late winter (August).[8]: 172 Weights at puberty are roughly in the range 24–32 kg with a mean of about 28 kg for does receiving a low-energy diet, and 24–38 kg with mean of about 31 kg for those on a higher-energy regime.[8]: 172
Does can be managed so that they give birth three times in every two years.[8]: 355 Single, twin, triplet and quadruplet births occur in the ratio 25:59:15:1.[8]: 175
Use
[edit]
The Boer is a meat breed, and is reared principally for that reason. Under extensive management in the sub-tropics, a weight gain of approximately 175 g per day may be expected; daily gains of more than 200 g are possible under intensive conditions.[9]: 355 The goats may also be used in vegetation management, and are kept for this purpose in some areas of thornveld.[7]: 83
The milk yield of does is some 1.5–2.5 kg per day, with about 7.7% fat and 4.3% protein.[10]: 291
References
[edit]
- ^ Barbara Rischkowsky, Dafydd Pilling (editors) (2007). List of breeds documented in the Global Databank for Animal Genetic Resources, annex to The State of the World's Animal Genetic Resources for Food and Agriculture. Rome: Commission on Genetic Resources for Food and Agriculture, Food and Agriculture Organization of the United Nations. ISBN 9789251057629. Archived 23 June 2020.
- ^ a b c d e f Breed data sheet: Boer Goat/ South Africa (Goat). Domestic Animal Diversity Information System of the Food and Agriculture Organization of the United Nations. Accessed September 2024.
- ^ a b Transboundary breed: Boer. Domestic Animal Diversity Information System of the Food and Agriculture Organization of the United Nations. Accessed April 2022.
- ^ a b c d Valerie Porter, Lawrence Alderson, Stephen J.G. Hall, D. Phillip Sponenberg (2016). Mason's World Encyclopedia of Livestock Breeds and Breeding (sixth edition). Wallingford: CABI. ISBN 9781780647944.
- ^ Osman Mahgoub, I.T. Kadim, E.C. Webb (2012). Goat Meat Production and Quality. Wallingford: CABI. ISBN 9781845938499.
- ^ Henry Stephen Holmes-Pegler ([1909]). The Book of the Goat: Containing full particulars of the various breeds of Goats and their profitable management, fourth edition. London: L. Upcott Gill.
- ^ a b [National Department of Agriculture/Agricultural Research Council] (June 2006). South African Country Report on Farm Animal Genetic Resources. Pretoria: Department of Agriculture. Annex to: Barbara Rischkowsky, Dafydd Pilling (editors) (2007). The State of the World's Animal Genetic Resources for Food and Agriculture. Rome: Commission on Genetic Resources for Food and Agriculture, Food and Agriculture Organization of the United Nations. ISBN 9789251057629. Archived 10 January 2017.
- ^ a b c d e f g J.P.C. Greyling (May 2000). Reproduction traits in the Boer goat doe. Small Ruminant Research. 36 (2): 171–177. doi:10.1016/S0921-4488(99)00161-3.
- ^ W.A. Van Niekerk, N.H. Casey (December 1988). The Boer goat. II: Growth, nutrient requirements, carcass and meat quality. Small Ruminant Research. 1 (4): 355–368. doi:10.1016/0921-4488(88)90061-2.
- ^ N.H. Casey, W.A. Van Niekerk (September 1988). The Boer goat. I: Origin, adaptability, performance testing, reproduction and milk production. Small Ruminant Research. 1 (3): 291–302. doi:10.1016/0921-4488(88)90056-9.
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