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Asian Journal of Animal Sciences

Year: 2011 | Volume: 5 | Issue: 4 | Page No.: 228-242
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Authors

M.R.M. Mousa

Keywords

Research Article

Effect of Partial Replacement of Dietary Concentrate Feed Mixture by Fodder Beet Roots on Productive Performance of Ewes and Doe Goats under the Conditions of North Sinai

M.R.M. Mousa
This study was carried out to evaluate the effect of feeding different levels of fodder beet roots in replacement of Concentrate Feed Mixture (CFM) on the nutritive values, productive performance and economical efficiency of ewes and dairy goats. Four rations were evaluated during the first. The control ration consisted of CFM and rice straw. Three tested rations were formulated so that 35, 50 and 65% of CFM were replaced by fodder beet roots. In the second trial, ration 3 which showed the highest feeding value and had the highest possible replacement without negative effects was compared with the control ration in a feeding trial. Digestibility coefficients of dry matter, organic matter, ether extract and nitrogen free extract were not significantly affected by any level of replacement while the digestibility of crude protein and crude fiber were significantly decreased as the fodder beet roots in diets increased. The same trend was recorded for Digestible Crude Protein (DCP). All animals were in positive N-balance. There were no significant effects on birth weight, weaning weight and daily weight gain of kids or lambs due to feeding their dams on fodder beet. Dairy goats and ewes fed on fodder beet roots produced more milk than the control by about 12.09 and 24.38%, respectively. Therefore, replacement of fodder beet roots up to 50% from CFM in dairy goats and ewes diets improved milk yield, productive performance, economical efficiency, decreased feed cost and can participate in solving the problem of feed stuffs shortage in North Sinai.
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