Performance of West African dwarf goats fed Agro-industrial by-products and Pennisetum purpureum hay as dry season feed
Nigerian Journal of Animal Production(2020)
摘要
This study was carried out to evaluate the performance of West African dwarf goats fed agroindustrial by-products (cassava peels, dried poultry waste, molasses and saw dust ash) based diets. The study lasted for 120 days during which diets formulated with 0% (1), 20% (2), 25% (3) and 30% (4) dried poultry waste (DPW) replaced cassava peels meal (CPM) in the same proportion. The diets were fed as a supplement to Pennisetum purpureum hay (basal). The goats were arranged in a completely randomized design. Parameters included feed intake, digestibility, nitrogen utilization, and growth rate were studied. The dry matter (DM) and crude protein (CP) intakes (glkgW 0.75/ day) were not significantly (p< 0.05) different among treatment means. Animals placed on diet 1 (control) had values of 115.51gW0.75/day and 20.99gW0.75 /day for DM and CP intakes respectively. The digestibility of diet 3 (67.35, 80.77, 70.32, 72.89, 72.69, 74.58 and 59.98%) DM, CP, EE, CF, ADF, NDF, ADL and NFE respectively compared favourably with diet 1. The nitrogen retention was highest in diet 3 (75.7%).The live weight gain (g / day) was highest in animals fed diet 1 and that on diet 3. There were significant (p < 0.05) differences in feed conversion ratio and the cost per kilogram live weight gain was highest in diet 4 with 30 % DPW inclusion. It was therefore concluded that feeding of diet 3 (25% DPW) could lead to improved feed intake, nutrient digestibility, nitrogen utilization and weight gain in WAD goats.
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关键词
west african dwarf goats,pennisetum purpureum hay,agro-industrial,by-products
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