A study was carried out at the Okpara breeding farm in Benin. Records on 558 lambs of the Djallonke sheep breed, born from 1997 to 2000, were used to determine the weekly growth curve from birth up to 119 days of age. Non-genetic factors affecting lamb weights at birth and at 30, 60, 90 and 120 days and average daily gains from 0 to 30 days, from 0 to 60 days, from 0 to 90 days and from 0 to 120 days were investigated. A linear model comprising the fixed effects of birth season, birth year, parity number of ewe and sex of lambs was used for analysis of variance by least squares. All fixed effects were significant for weight at 30 and 60 days and average daily gains at 30 days, with the exception of the parity of the ewe for birth weight, weight and average daily gain at 90 days. All fixed effects tended to cancel out for weight and average daily gains by 120 days. Lambs born in the dry season were the heaviest. Single lambs and male lambs were heavier than twins and females. Lambs from ewes of 3rd and 4th parity were heavier, with higher, average daily gains.
RESUMESomba cattle breeding and management of its gastrointestinal parasitic ecology in Benin ABSTRACT Somba cattle breed is faced with constraints related to the natural environment which mainly parasitism. In order to have a better knowledge of farming conditions of the cattle in the real environment, the resulting performance, and management of parasitic influencing factors, a bibliographic review of scientific work in this direction has been made. It shows that bovine Somba evolves in poor farming conditions which severely limit its productive performance. Parasites favored by a warm climate and poor farming conditions T. F. CHABI CHINA et al. / Int. J. Biol. Chem. Sci. 10(5): 2300-2315, 2016 2301 seriously prevalent in herds. Chemotherapy, conventional means of control now knows the limitations that led to explore other possibilities like ethnomedecine whose use is still informal and without medical repository. Thus, improvement of breeding conditions and better health monitoring taking into account the valuation of ethnomdecine are essential for farms more productive and more sustainable cattle Somba.
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