Zobrazeno 1 - 10
of 45
pro vyhledávání: '"J. C. M. Trail"'
Publikováno v:
Revue Scientifique et Technique de l'OIE. 9:369-386
Tsetse-transmitted trypanosomiasis is one of the major constraints on the expansion of the livestock and agricultural industries in Africa. The disease affects animals and man, with direct and indirect losses estimated in billions of dollars annually
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4c95288d6ff7e65700ae98a13f36dff
https://doi.org/10.20506/rst.9.2.506
https://doi.org/10.20506/rst.9.2.506
Autor:
J. C. M. Trail
Publikováno v:
BSAP Occasional Publication. 4:191-231
The limited genetic potential of indigenous cattle has often been quoted as a major constraint to beef and milk production in Africa south of the Sahara. Thus, considerable efforts have been and are being made to increase output through breeding prog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c95711266f6fbc3293bee456c08ca2d0
https://doi.org/10.1017/s0263967x00000537
https://doi.org/10.1017/s0263967x00000537
Autor:
Max Murray, J. C. M. Trail
Publikováno v:
International Journal for Parasitology. 17:621-627
Tsetse-transmitted trypanosomiasis in man and domestic livestock is a major constraint to livestock and socio-economic development in Africa. Analysis of the limited number of databases on matching animal health and productivity available for cattle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4dade2f676e90b96a945fc731d625577
https://doi.org/10.1016/0020-7519(87)90139-1
https://doi.org/10.1016/0020-7519(87)90139-1
Autor:
Max Murray, J. C. M. Trail
Publikováno v:
Preventive Veterinary Medicine. 2:541-551
Certain indigenous taurine breeds of cattle, namely N'Dama and West African Shorthorn, in West and Central Africa aare significantly more resistant to trypanosomiasis than Bos indicus breeds. This trait, termed trypanotolerance, is an innate characte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9952d939bcc742baafde6ec658446dc3
https://doi.org/10.1016/0167-5877(84)90100-4
https://doi.org/10.1016/0167-5877(84)90100-4
Publikováno v:
International Journal of Modelling and Simulation. 3:70-80
A dynamic and stochastic cattle herd simulation model is used to investigate economic trade-offs between meat and milk production of two genotypes in Botswana. Under the present pricing structure s...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28a1632dd8e0b57366c62b344e10bff1
https://doi.org/10.1080/02286203.1983.11759820
https://doi.org/10.1080/02286203.1983.11759820
Publikováno v:
Outlook on Agriculture. 13:43-51
The exploitation of genetic resistance to infectious diseases is being given increasing attention in livestock development programmes. This is particularly the case in developing countries where it is estimated that 70 per cent of the world's livesto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d54ba61cda703caa39ee47352908458
https://doi.org/10.1177/003072708401300106
https://doi.org/10.1177/003072708401300106
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