Zobrazeno 1 - 10
of 10
pro vyhledávání: '"N. G. Buck"'
Autor:
N. G. Buck
Publikováno v:
Tropical Animal Health and Production. 22:169-169
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94e75cd4024c1e6d4e75bca0581e0699
https://doi.org/10.1007/bf02241011
https://doi.org/10.1007/bf02241011
Publikováno v:
Animal Science. 30:61-67
In three trials conducted in 3 successive years, Africander, Brahman, Tswana, Tuli and crossbred cattle were injected intramuscularly with 500 jug of cloprostenol on two occasions 11 days apart to synchronize oestrus. The cattle were inseminated 72 a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e00ab94608edb576b1b69414eb04744
https://doi.org/10.1017/s0003356100023801
https://doi.org/10.1017/s0003356100023801
Publikováno v:
Animal Science. 35:421-426
The calving rates, survival and growth of calves of Brahman (344), Bonsmara (454), Simmental (601) and Tuli (276) crossbred cows, and pure Tswana (405), were collected for a 7-year period, 1974–80. Calving and survival rates for calves were 0·90,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::846645fd87716a9e8550800524bc2436
https://doi.org/10.1017/s0003356100001112
https://doi.org/10.1017/s0003356100001112
Autor:
N. G. Buck, D. Light
Publikováno v:
Animal Science. 35:413-420
The breeding records of 2710 lactating cows, of the Africander (1208), Tswana (542) and Tuli (960) breeds, were analysed to examine the effects of breed and environment on reconception. The reconception rate of Africander cows (0·56) was significant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34aa5e8eb1981d6d7791a1e51744a459
https://doi.org/10.1017/s0003356100001100
https://doi.org/10.1017/s0003356100001100
Autor:
M. Miller, D. Pratchett, T. W. Rennie, J. C. M. Trail, N. G. Buck, A. Rutherford, D. Light, B. S. Capper
Publikováno v:
Animal Science. 24:49-55
SUMMARYThe effects of supplementary feeding of licks containing non-protein nitrogen on the reproductive performance of beef breeding cows and on the live-weight gain of growing stock in Botswana is described. The trials involved 1375 breeding cows a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0fa223a14d2287f8149784a3b05e02d
https://doi.org/10.1017/s0003356100039192
https://doi.org/10.1017/s0003356100039192
Autor:
D. Light, J. C. M. Trail, M. Miller, B. S. Capper, N. G. Buck, D. Pratchett, T. W. Rennie, A. Rutherford
Publikováno v:
Animal Science. 24:57-62
SUMMARYThe three indigenous beef cattle breeds in Botswana, the Tswana, Africander and Tuli, were evaluated for reproductive performance, viability and growth. Over 3 yr the calving percentages of 1389 Africander cows, 305 Tswanas and 357 Tulis were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05faf5ddafe061277a3430a51ae049f1
https://doi.org/10.1017/s0003356100039209
https://doi.org/10.1017/s0003356100039209
Autor:
A. Rutherford, D. Pratchett, T. W. Rennie, J. C. M. Trail, D. Light, I. Fisher, M. Miller, B. S. Capper, N. G. Buck
Publikováno v:
Tropical Animal Health and Production. 9:1-6
A comparison of productivity over a 4-year period from indigenous type beef cattle under two production systems in Botswana is reported. The two systems are: the traditional system on unenclosed communal grazing (cattle post) and ranching within fenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea650701e8ad0c68970cd8f7facecf8b
https://doi.org/10.1007/bf02297380
https://doi.org/10.1007/bf02297380
Autor:
D. Pratchett, T. W. Rennie, M. Miller, A. Rutherford, J. C. M. Trail, N. G. Buck, B. S. Capper, D. Light
Publikováno v:
Animal Science. 23:357-363
SUMMARYEffects on cow reproductive performance, of cow age, parous state, body weight and body-weight change over the breeding season were examined using 6490 annual records from indigenous cows in Botswana.Calving percentage rose from 69% at 2·5 yr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::493a9b9954889f2136615bba112ec60d
https://doi.org/10.1017/s0003356100031470
https://doi.org/10.1017/s0003356100031470
Publikováno v:
Animal Science. 33:215-217
In a trial to evaluate the growth of crossbred calves under semi-arid ranch conditions in Botswana, pure Tswana and crossbred beef cows were inseminated with Beefalo and Italian semen or mated naturally with Brahman, Simmental or Tswana bulls. The 42
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef462542f00db52cd9b83e782090d472
https://doi.org/10.1017/s0003356100040654
https://doi.org/10.1017/s0003356100040654
Autor:
N G Buck
Publikováno v:
The Veterinary record. 116(8)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58e4f57b5c4957399bbe976f54cd619c
https://pubmed.ncbi.nlm.nih.gov/3984203
https://pubmed.ncbi.nlm.nih.gov/3984203