Evaluation of two milk replacers in the artificial rearing of Anglo-Nubian female goat kids
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Universidad Nacional de Colombia
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Dairy goat production is an alternative for rural development in Buenos Aires province, Argentina. Artificial rearing with milk replacers allows all goat milk to be intended for milking. Although this technology is widespread in cattle, more studies are needed in goats. The aim was to evaluate the artificial rearing of Anglo-Nubian female kids, according to two milk replacers: commercial small ruminant milk replacer (MR) vs. whole cow milk powder (MP). Milk replacers were offered until week 10 of life according to a protocol, complimenting it with solid food after week three. The following were evaluated: survival (SUR), live weight (LW), daily live weight gain (DLWG), age (week) in which the kids reached 10 kg (LW10) and multiplied by 2.5 their birth weight (BWx2.5), glycemia (GLY), diarrhea incidence (DI), and cost of milk replacer per kid (COST). SUR was 100% in both treatments. Despite detecting differences in LW in week six in favor of MP, both groups reached similar LW at the end of the rearing period. Results for DLWG, LW10, BWx2.5, and DI did not differ between treatments. There was no effect of treatment on GLY; however, age affected it. COST was lower for MR. It is concluded that, although both milk replacers allow similar and adequate growth of kids, the use of a milk replacer formulated for small ruminants significantly reduces the cost of artificial rearing.
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