Presents results of a data collected over a 10-year period on 1,778 service intervals in 1,111 Arsi (Bos indicus) cows at the Ethiopian Ministry of Agriculture ranch to analyse conception rate at first service, interval between services in animals returning for insemination, the number of short c...
Mukasa-Mugerwa, E.
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Tegegne, Azage
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Teklu, Y.
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[Characterization of service intervals and frequency of short oestrus cycles in Zebu (Bos indicus) cows in Ethiopia]
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Characterization of service intervals and frequency of short oestrus cycles in Zebu (Bos indicus) cows in Ethiopia
Assesses the effect of cow-calf association and continuous suckling on the resumption of oestral activity; and monitors the temporal patterns of plasma progesterone during the post-partum period in grazing Ethiopian Small East African Zebu cows under uncontrolled mating.
Mukasa-Mugerwa, E.
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Tegegne, Azage
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Franceschini, R.
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[Influence of suckling and continuous cow-calf association on the resumption of post-partum ovarian function in Bos indicus cows monitored by plasma progesterone profiles]
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Influence of suckling and continuous cow-calf association on the resumption of post-partum ovarian function in Bos indicus cows monitored by plasma progesterone profiles
Analyses reproductive data on 4123 inseminations from 2332 breeding records of 1237 Arsi (Bos indicus) cows, collected between 1982 and early 1989 from the Gobe ranch of the Ethiopian Ministry of Agriculture where cows were kept under similar management; and concludes that long post partum anoest...
Mukasa-Mugerwa, E.
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Tegegne, Azage
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Mesfin, T.
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Teklu, Y.
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[Reproductive efficiency of Bos indicus (Zebu) cows under artificial insemination management in Ethiopia]
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Reproductive efficiency of Bos indicus (Zebu) cows under artificial insemination management in Ethiopia
Presents the results of a study designed to characterize further the temporal patterns of oestrus onset and plasma progesterone profiles during the postpartum ovarian activitity in two groups of Ethiopian Bos indicus (Zebu) cows whose calves were either weaned at 4.5 months or at 7.5 months; repo...
Mukasa-Mugerwa, E.
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Tegegne, Azage
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Ketema, H.
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[Patterns of postpartum oestrus onset and associated plasma progesterone profiles in Bos indicus cows in Ethiopia]
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Patterns of postpartum oestrus onset and associated plasma progesterone profiles in Bos indicus cows in Ethiopia
A total of 137 cycling Zebu cows, each receiving a single dose of prostaglandin PGF 2a were used in an oestrus synchronization programme on three different farms. Of the cows on the three farms, 60.6 and 90.5 percent showed over oestrus and luteolysis, respectively. Pregnancy rate to fixed time i...
Compares estrus response, estrus response interval and subsequent pregnancy rate in Bos indicus and Bos indicus X Bos taurus cross cows and heifers following estrus synchronization with prostaglandin F2 (PGF2X (a), a progesterone releasing intravaginal device (PR10) (b), and synchro-mate B (SMB) ...
Tegegne, Azage
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Warnick, A.C.
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Mukasa-Mugerwa, E.
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Ketema, H.
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[Fertility of Bos indicus and Bos indicus X Bos taurus crossbred cattle after estrus synchronization]
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Fertility of Bos indicus and Bos indicus X Bos taurus crossbred cattle after estrus synchronization
Small East African Zebu cows which calved during the dry season were used to determine the effects of postpartum nutritional supplementation and suckling intensity on body weight, body condition score, reproductive performance and on calf mortality and preweaning growth performance. Cows were all...
Tegegne, Azage
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Entwistle, K.W.
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Mukasa-Mugerwa, E.
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[Effects of supplementary feeding and suckling intensity on postpartum reproductive performance of small East African Zebu cows]
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Effects of supplementary feeding and suckling intensity on postpartum reproductive performance of small East African Zebu cows
Plasma progesterone profiles were used to monitor post-partum reproductive activity in 12 Small East African Zebu (Bos indicus) cows allocated to either supplementary or no supplementary feeding (control) with continious or restricted (twice daily) suckling regimes. Intact bulls were used for bre...
Tegegne, Azage
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Entwistle, K.W.
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Mukasa-Mugerwa, E.
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[Plasma progesterone and blood metabolite profiles in post-partum small East African Zebu cows]
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Plasma progesterone and blood metabolite profiles in post-partum small East African Zebu cows
A study undertaken to characterise the oestrous cycle in Zebu cows following oestrous induction with PGF (Prostaglandin F2alpha) and examines the function of the subsequently formed CL (corpus luteum) by monitoring levels of peripheral plasma progesterone.
Mukasa-Mugerwa, E.
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Tegegne, Azage
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Mattoni, M.
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Cecchini, G.
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[Effect of oestrous synchronization with prostaglandin F2alpha in Ethiopian highland Zebu (Bos indicus) cows]
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Effect of oestrous synchronization with prostaglandin F2alpha in Ethiopian highland Zebu (Bos indicus) cows