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Evaluation of Black Head Persian sheep at Malya and West Kilimanjaro Research Centres, Tanzania

Data on Black Head Persian (BHP) sheep, collected at Livestock Research Centres, Malya and West-Kilimanjaro, Tanzania for the period 1964-1988, were analysed. Overall age at first lambing, lambing interval, twinning rate, litter size and annual reproductive rate averaged 784.2± 6.16, 350.9± 3.54 day...

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Main Author: Das, S.M.
Format: Informe técnico
Language:Inglés
Published: 1991
Subjects:
sheep
reproduction
reproductive performance
mortality
productivity
heritability
parturition
seasons
growth rate
birth weight
age
sex
Online Access:https://hdl.handle.net/10568/70823
Summary:Data on Black Head Persian (BHP) sheep, collected at Livestock Research Centres, Malya and West-Kilimanjaro, Tanzania for the period 1964-1988, were analysed. Overall age at first lambing, lambing interval, twinning rate, litter size and annual reproductive rate averaged 784.2± 6.16, 350.9± 3.54 days, 2.8%, 1.03 and 1.19, respectively. Ewes at West-Kilimanjaro were significantly lower in all reproductive traits than ewes at Malya except for age at first lambing. Post-partum weights of BHP ewes at Malya and West-Kilimanjaro averaged 39.45 and 35.73 kg.

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