The oestrus cycle and its manifestation in the Angoni, Barotse and Boran cattle are investigated. The time of onset and manifestation of oestrus and ovulation are observed, and changes in the size, colour, appearance and contents of the cervical organs reported.
Rakha, A.M.
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Igboeli, G.
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Hale, D.H.
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[The oestrus cycle of Zebu and Sanga breeds of cattle in Central Africa]
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The oestrus cycle of Zebu and Sanga breeds of cattle in Central Africa
Boer goats evolved in southern Africa from indigenous African and introduced European stock. Breed standard of the Boer goat breeder's association stipulate colour to be white with red head and blaze, pigmented skin and good, functional conformation. Boer goats are hardy, graze a wide spectrum of...
Casey, N.H.
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Niekerk, W.A. van
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[The Boer goat. I. Origin, adaptability, performance testing, reproduction and milk production]
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The Boer goat. I. Origin, adaptability, performance testing, reproduction and milk production
The luteolytic effect of prostaglandin F2á (PGF2á) during the confirmed luteal phase of the oestrous cycle was evaluated in ten Boran and ten Boran x Friesian cross-bred heifers. Following injection with 25mg Lutalyse, animals were bled every 6 h for 96 h and plasma progesterone (P4) determined ...
Mutiga, E.R.
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Mukasa-Mugerwa, E.
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Tegegne, Azage
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[Luteolytic effect of prostaglandin F2X in Boran and Boran X Friesian cross-bred heifers]
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Luteolytic effect of prostaglandin F2X in Boran and Boran X Friesian cross-bred heifers
Milk yield performances in Kenana and Butana cows were examined to determine the influence of age on production. The mean milk yields for the Kenana and Butana herds were 2136 ± 168 and 1807 ± 592 kg produced in a mean lactation period of 283 ± 40 days and 283 ± 57 days respectively. In both herd...
Abdalla, E.A.
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Nasr, A.M.
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Khalafalla, A.M.
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EL Shafie, S.A.
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[The influences of age on lactation length and milk yield in Kenana and Butana cows]
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The influences of age on lactation length and milk yield in Kenana and Butana cows
In a comparison of water intake of Boran and Angus-Boran steers over three years, the crossbreds consumed more water per head than the Borans, particularly during the hotter months. There was little difference between the groups on the basis of intake per unit liveweight, and intake per unit live...
Wigg, P.M
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Owen, M.A.
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[Studies on water consumption, night grazing and growth of Boran crossbred steers at Kongwa, Tanzania]
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Studies on water consumption, night grazing and growth of Boran crossbred steers at Kongwa, Tanzania
Teale, A.J.
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Gwakisa, P.S.
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Maillard, J.C.
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Kemp, Stephen J.
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[Progress in molecular and genetic characterization of cattle populations, with emphasis on African breeds]
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Progress in molecular and genetic characterization of cattle populations, with emphasis on African breeds
The Kuri cattle breeds of Lake Chad were investigated. Descriptions of rearing environment, animal morphology and breed improvement included. Data on body measurements of oxen, cows and bulls included with discussions of their exploitation, protection, improvement, selection and multiplication.
A trial was conducted on 26 male twin lambs to study the effect of creep feeding on lamb development and growth Creep feeding started when the lamb’s average age was 43 days. Lambs were weaned at an average age of 93 days. The creep feed group was fed ad libitum until the age of six months while ...
Herring, A.D.
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Sanders, J.O.
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Knutson, R.E.
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Lunt, D.K.
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[Evaluation of F1 calves sired by Brahman, Boran, and Tuli bulls for birth, growth, size, and carcass characteristics]
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Evaluation of F1 calves sired by Brahman, Boran, and Tuli bulls for birth, growth, size, and carcass characteristics