Proceedings
The aim of this study was to examine the relationship between reproduction and nutrition in goat kids during the period of growth and puberty. The objective was to produce goat kids of 30 kg live weight, at eight months of age, with the first off-spring born at 13 or 14 months. Goat kids between three and six months, of the "Granadina" breed, were put under a supplementary diet of energy and phosphorus. The goats were divided into two groups: (1) CONTROL-kids were fed 1.03 Mcal. of metabolizable energy (ME) and 1 g of phosphorous (P) per kg of dry matter (DM); a diet representative of that found in the Shrubby Savanna region. (2) Kids were fed 1.30 Mcal. of M.E. and 3.50 g of P per kg of D.M. The results showed: Group 2: By seven months of age, the kids had obtained weight gains of 76 percent with mean weights of 21.43 kg compared to 16.95 g, in Group 1. Efficiency of gain was improved in Group 2 as compared to Group 1 (21.42 Mcal of M.E., vs 15.50 Mcal of M.E. and 21.22 g of P vs 40.43 g of P per kg of gain). The control group reached puberty later (32.54 weeks vs 27.02 weeks) that Group 2. Supplementation of phosphorous and energy allowed the kids to reach puberty earlier. These results indicate that where food is scarce, it may be necessary to supplement the kids' diet, and that supplementation with energy and phosphorus will improve growth and reproduction
| Main Authors: | , , , |
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| Format: | biblioteca |
| Published: |
Scottsdale, AZ (EUA)
1982
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| Subjects: | CAPRINOS, CABRITOS, PRODUCCION ANIMAL, REPRODUCCION, SUPLEMENTACION, SUPLEMENTACION MINERAL, FOSFORO, PUBERTAD, MEXICO, |
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