A comparison was made of the growth curves for early and late eruptors (steers whose eruption age of the first incisor pair was less than the mean, and greater than the mean respectively). From birth to 195 weeks early eruptors were consistently heavier than late eruptors (P
Carles, A.B.
,
Lampkin, K.M.
,
[Studies of the permanent incisor eruption and body development of the large East African Zebu (Boran): 2. Relations of incisor eruption with body growth, body development, and carcass composition]
,
Studies of the permanent incisor eruption and body development of the large East African Zebu (Boran): 2. Relations of incisor eruption with body growth, body development, and carcass composition
The mean birth weight of Kenana calves in the herd under investigation was 24.2±2.8 kg. Male calves were 1.3 kg heavier at birth than female-calves. The difference was attributed, parity at least, to longer gestation length in case of the male-calves. Calves born to cows 2½-5½ years old were sign...
Khalifa, H.A.A.
,
Khalafallah, M.
,
[A study of some economic traits in a herd of Kenana cattle (Northern Sudan Zebu) I. Birth weight in Kenana cattle]
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A study of some economic traits in a herd of Kenana cattle (Northern Sudan Zebu) I. Birth weight in Kenana cattle
Presents a brief description of the foundation stock at Muguga, Headquarters of the East African Veterinary Research Organisation. The breeding programme and type of management adopted at the centre are discussed.
Lampkin, G.H.
,
Lampkin, K.
,
[Studies on the production of beef from zebu cattle in East Africa. I. A description of the Muguga herd]
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Studies on the production of beef from zebu cattle in East Africa. I. A description of the Muguga herd
The pituitary glands of seven Boran cattle (Bos indicus), five infected with a clone of Trypanosoma congolense IL 1180 (ILNat 3.1) transmitted by Glossnia morsitans centralis and two uninfected controls were examined by light and electron microscopy 43 (experiment 2) or 56 (experiment 1) days aft...
Abebe, G.
,
Shaw, M.K.
,
Eley, R.M.
,
[Trypanosoma congolense in the microvasculature of the pituitary gland of experimentally infected Boran Cattle (Bos indicus)]
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Trypanosoma congolense in the microvasculature of the pituitary gland of experimentally infected Boran Cattle (Bos indicus)
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.
Herring, A.D.
,
Sanders, J.O.
,
Knutson, R.E.
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Lunt, D.K.
,
[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
Observations were made of the ages at first appearance of each pair of permanent incisors (‘eruption age’), and the time from first appearance to full eruption of each pair (‘eruption’), for Large East African Zebu cattle (Boran). For females the eruption ages were found to be 108.5±9.9 weeks, 13...
Carles, A.B.
,
Lampkin, K.M.
,
[Studies of the permanent incisor eruption, and body development, of the large East African Zebu (Boran): 1. The ages at first appearance of the incisors, lengths of the incisor eruption period, and source of variation]
,
Studies of the permanent incisor eruption, and body development, of the large East African Zebu (Boran): 1. The ages at first appearance of the incisors, lengths of the incisor eruption period, and source of variation
The reproduction of the Kenana cattle was studied to establish the service period (SP), calving interval (CI) gestation period (GP), and economic production characteristics. Age of cow had significant effect on SP and highly significant effect on calving interval. The variations in the SP and in ...
Khalafallah, A.M.
,
Khalifa, H.A.A.
,
[A study of some economic traits in a herd of Kenana cattle. Service period, calving interval and gestation period]
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A study of some economic traits in a herd of Kenana cattle. Service period, calving interval and gestation period
Presents the Kapsiki, a residual Bos taurus breed of far North Cameroon. Data on the environmental and social background, biometrical and phaneroptic evaluations included. A barymetric formula was calculated and a body weight-chest girth conversion table deduced for practical use in the field.
Dineur, B.
,
Thys, E.
,
[Les Kapsiki: race taurine de l'extreme-Nord camerounais. I. Introduction et barymetrie]
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Les Kapsiki: race taurine de l'extreme-Nord camerounais. I. Introduction et barymetrie
Appartenant a un ensemble d'articles destines a approfondir les connaissances que noun avons de race Kouri, ce 2e de la serie aborde l'aspect biochimique et genetiques des constantes sanguines des cette race. Les frequences genetiques des hemoglobines ont ete determinees et 10 composantes serique...
Petit, J.P.
,
Queval, R.
,
[Le Kouri: race bovine du lac Tchad. II. Etude biochimique: les hemoglobines et les constituants du serum]
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Le Kouri: race bovine du lac Tchad. II. Etude biochimique: les hemoglobines et les constituants du serum