FACULTY OF AGRICULTURE

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    Effect of broiler litter supplementation on reproductive performance of West African dwarf sheep
    (The Nigerian Society for Animal Production, 2015) Ososanya, T. O.
    Four low cost feed samples were formulated using 0, 25, 50 and 75% levels of broiler litter processed into feed along with other feed ingredients. Sixteen (16) primiparous West African Dwarf (WAD) ewes aged between twelve and eighteen months old were dewormed using Ivermectin and dipped against ticks and fleas using diazintol. Oestrus was artificially synchronized in all the ewes using 1ml of Prostaglandin - 2Fα administered intramuscularly, the animals were mated with rams of known fertility and lineage bred. Ewes were evaluated in a pregnancy trial while the lambs born were evaluated in a pre-weaning growth trial. All the ewes were weighed before conception and bimonthly thereafter until parturition. The parameters studied were weight at mating, weight before and after parturition, weight changes during pregnancy, weight changes in lactation and nursing, lambs birth weights and daily weight of lambs, dam's weight at weaning and gestation length. Results obtained showed weight at mating, weight before mating, weight at parturition, gestation length, weight gain in pregnancy, weight change in lactation and nursing, lambs birth weights and daily weight gain of lambs were significantly affected (p<0.05) while dam's weight at weaning and lambs' weaning weight were not affected (p>0.05). Results of this study indicate that inclusion of broiler litter up to 50% in feed mixtures of ewes has no deleterious effect on the performance and health status of ewes during pregnancy and lactation.
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    Haematology of pregnant West African dwarf ewes fed siam weed-based rations
    (Animal Science Association of Nigeria, 2004) Anurudu, N. F.; Babayemi, O. J.; Ososanya, T.
    There is relatively scanty information on normal blood values for sheep in Nigeria as regards the nature and the level of forage inclusion in the diets. The study was set up to assess the effects of siam weed on blood chemistry of pregnant West African Dwarf (WAD) sheep. Sixteen WAD sheep that have lambed once were allocated in a completely randomized design to four diets with different levels of siam weed leaf meal (SWLM) diets inclusion: 0% (Diet A), 15% (Diet B), 30% (Diet C) and 45% (Diet D). Variations in haematological parameters due to treatments were inconsistently significant except for Erythrocyte/ red blood cell (RBC). The Leukocyte/white blood cell (mm3 xlO3) varied from 5.64 (diet B) to 8.81 (diet A) in the last trimester. The lowest packed cell volume (28%) was obtained for sheep on 30% siam weed leaf meal (SWLM). Erythrocyte values were low ranging between 5.71 and 6.37. White blood cell was normal and ranged from 5.64 in 15% to 8.81 in 0% SWLM. The values for packed cell volume slightly increased in animals on diets 0% and 45% SWLM at the end of pregnancy while those of 15% and 30% remained normal. Mean corpuscular volume (ranged 47.50 - 53.25) was beyond the normal range at late pregnancy. The results showed that pregnant sheep could tolerate the siam weed leaf meal at levels between 15 and 45% dietary inclusion without a significant alteration of the blood constituents.