Productivity of zebu cows was investigated. Estimation of milk quantity obtained by calves, and effect of milk production on calf growth and live weight of suckled zebu cows were examined.
Lampkin, K.M.
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Lampkin, G.H.
,
[Studies on the production of beef from zebu cattle in East Africa. 2. Milk production in suckled cows and its effect on calf growth]
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Studies on the production of beef from zebu cattle in East Africa. 2. Milk production in suckled cows and its effect on calf growth
Post-weaning growth performance was studied for 342 steers out of Africander cows and by Africander, Brahman. Charolais, Hereford and Simmental sires. In a system of intensive fattening, the latter three Bos taurus sire-breed progeny-groups performed strikingly better than the former two Bos indi...
Mentz, A.H.
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Els, D.L.
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Coetzer, W.A.
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[Crossbreeding with Africander dam as basis. 3. Post-weaning growth performance of progeny of various sire-breeds]
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Crossbreeding with Africander dam as basis. 3. Post-weaning growth performance of progeny of various sire-breeds
The effects of 1.35, 1.8, or 2.25 kg dry matter (DM) of cottonseed cake, with (1.85 kg DM) or without molasses, on straw intake, diet digestibility, live-weight change, excretion of purine derivative (PD), and milk production of Boran (Bos indicus) cows were studied. There were no significant (P ...
Osuji, P.O.
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Khalili, H.
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Umunna, N.N.
,
[The effects of cottonseed cake with or without molasses on feed utilization, purine excretion, and milk production of Boran (Bos indicus) cows fed a mixture of wheat and oat straw]
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The effects of cottonseed cake with or without molasses on feed utilization, purine excretion, and milk production of Boran (Bos indicus) cows fed a mixture of wheat and oat straw
A total of 179 heifers, primiparous and multiparous Boran cows were assigned to four breeding units and mated over a 4 - month breeidng season in a single-sire mating system. Mean body weight and body condition scores at the beginning of mating ranged from 363 + 6 kg to 388 + 7 kg and from 6.7 + ...
Tegegne, Azage
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Entwistle, K.W.
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Mukasa-Mugerwa, E.
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[Factors affecting the reproductive performance of Boran (Bos indicus) cows in a single-sire mating system]
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Factors affecting the reproductive performance of Boran (Bos indicus) cows in a single-sire mating system
This study examines superovulatory response, embryo recovery rates, embryo quality, return to natural estrus, and patterns of progesterone secretion and its relationship with superovulatory response and embryo quality in Boran cows after treatment with either a human menopausal gonadotropin (Perg...
Tegegne, Azage
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Franceschini, R.
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Sovani, S.
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[Superovulatory response, embryo recovery and progesterone secretion in Boran (Bos indicus) cows after treatment with either Pergovet or Pluset]
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Superovulatory response, embryo recovery and progesterone secretion in Boran (Bos indicus) cows after treatment with either Pergovet or Pluset
This study was conducted in the central highlands of Ethiopia during 1990-92 to examine the effects of diet and partial suckling on lactation and reproductive performance of Boran (Bos indicus) cows. Primiparous Boran cows were allocated to dietary supplementation or no supplementation with eithe...
Tegegne, Azage
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Geleto, A.
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Osuji, P.O.
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Kassa, T.
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Franceschini, R.
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[Influence of dietary supplementation and partial suckling on body weight and on lactation and reproductive performance of primiparous Boran (Bos indicus) cows in Ethiopia]
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Influence of dietary supplementation and partial suckling on body weight and on lactation and reproductive performance of primiparous Boran (Bos indicus) cows in Ethiopia
Persistency of lactation in indigenous and crossbred cows was studied using milk data collected at Bako Agricultural Research Centre. Persistency was measured using three methods vis a vis as the ratios of milk yield during the second (P2:1) and third (P3:1) 100 days of lactation to milk yield du...
Gebreyohanes, G.
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Tegegne, Azage
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Diedhiou, M.L.
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Hegde, B.P.
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[Persistency of lactation and comparison of different persistency measures in indigenous and crossbred cows at Bako, Ethiopia]
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Persistency of lactation and comparison of different persistency measures in indigenous and crossbred cows at Bako, Ethiopia
Kleinheisterkamp, Ingo
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Botero Botero, Raúl
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[Concepciones obtenidas en tres períodos de monta, en los Llanos Orientales de Colombia]
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Concepciones obtenidas en tres períodos de monta, en los Llanos Orientales de Colombia
Kassa, T.
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Tegegne, Azage
,
[Major reproductive problems of zebu and Friesian x Zebu crossbred cows under small-scale dairy farms]
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Major reproductive problems of zebu and Friesian x Zebu crossbred cows under small-scale dairy farms