Ceba de conejos con pasto Kikuyo y tres niveles de concentrado
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Instituto Colombiano Agropecuario
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Se realizó un estudio de ceba de conejos en ci Centro Experimental Tibaitatá del ICA. 18 conejos criollos mejorados de 45 dias de edad se sometieron a una alimentación de pasto kikuyo a voluntad y una dieta suplementaria a razón de 120, 90 y 60 g diarios. Se observó un consumo incremental de pasto (88, 110 y 131 g/día) y consumos decrecientes de materia seca (140: 117 y 92 g/día) a rnedida que se restringió el concentrado. El peso final fue de 2.510: 2.104 y 1.729 g y decreció en forma proporcional al consumo de materia seca. El aumento diario de peso fue de 13,69; 10,45 y 7,90 g con una conversión alimenticia (consumo de alimento/ganancia diana) de 10,2; 11,2 y 11,7 lo cual se reflejó en los ingresos netos de 545,29: $75,81 y $110,77 para los tres tratamientos, respectivamente.
En este estudio Ia disminución del rendimiento biofísico no disminuye proporcionalmente los ingresos económicos por lo cual el máximo biológico no coincide con ci óptinio económico.
An experiment with young rabbits was conducted at the Tibaitatá center of ICA. Eighteen rabbits of 45 days were fed kikuyo grass Adlibitum and a concentrate at levels of 120; 90 and 60 grams per day in a completely random design. There was an increment in the consumption of kikuyo grass of 88; 110 and 131 g/day with the restriction of concentrate but the consumption of total dry matter decreased (140; 117 and 92 g/day respectively). The final weight after 140 days at fattening were 2510, 2104 and 1720 and decreased in a proportional manner with the decreased in dry matter consumption. The average daily gains were 13.7; 10,4 and 7.9 g/day while the feed conversion (Feed consumed/average daily gain) were 10.2; 11.2 and 11.7 respectively. The net income were $45,29, $75,81 and $110,77 and increased with the restriction of concentrate due a decreased feeding cost of restriction of concentrate. In this experiment higher average daily gaing gives a lower net income, thos maximizing gains does not maximize net income since the highest feed restriction gave the largest-net income. 8
An experiment with young rabbits was conducted at the Tibaitatá center of ICA. Eighteen rabbits of 45 days were fed kikuyo grass Adlibitum and a concentrate at levels of 120; 90 and 60 grams per day in a completely random design. There was an increment in the consumption of kikuyo grass of 88; 110 and 131 g/day with the restriction of concentrate but the consumption of total dry matter decreased (140; 117 and 92 g/day respectively). The final weight after 140 days at fattening were 2510, 2104 and 1720 and decreased in a proportional manner with the decreased in dry matter consumption. The average daily gains were 13.7; 10,4 and 7.9 g/day while the feed conversion (Feed consumed/average daily gain) were 10.2; 11.2 and 11.7 respectively. The net income were $45,29, $75,81 and $110,77 and increased with the restriction of concentrate due a decreased feeding cost of restriction of concentrate. In this experiment higher average daily gaing gives a lower net income, thos maximizing gains does not maximize net income since the highest feed restriction gave the largest-net income. 8
Palabras clave
Investigación agropecuaria - A50, Alimentación animal - L02, Conejo (oryctolagus), Pennisetum clandestinum, Ganadería y especies menores