Respuesta productiva de conejos alimentados con follaje fresco de nacedero (Trichanthera gigantea, Lamiales:Acanthaceae)
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Brenes Soto, Andrea
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La producción de carne de conejo es una alternativa viable en Costa Rica, ofreciendo al consumidor un producto de buena calidad, y a los productores posibilidad de aumentar sus ingresos. Se evaluaron los rendimientos productivos de conejos alimentados con nacedero fresco (Trichanthera gigantea) a través del peso de sacricio, ganancia de peso y rendimiento en canal. El experimento se realizó en una nca comercial, y se utilizaron 30 conejos de la raza California, asignados al azar a tres tratamientos: T1: Control: 100% alimento balanceado comercial extrusado para conejos de engorde, T2: 85:15, 85% alimento balanceado y 15% de hojas frescas de nacedero, T3: 70:30, 70% alimento balanceado y 30% hojas frescas de nacedero. Los conejos se pesaron semanalmente durante ocho semanas, se sacricaron a los 88 días de edad y se determinó su rendimiento en canal. Se encontraron diferencias signicativas en el crecimiento de los animales de los tratamientos 1 y 2 con respecto al 3 por medio de la prueba de Tukey; así como las menores ganancias de peso (p=0,008) y rendimiento en canal (p=0,002). El peso inicial de los animales (incluido como covariable), ejerció un efecto signicativo en la respuesta de todos los parámetros (p=0,02). Los pesos promedio iniciales fueron 441, 403 y 418 g, las ganancias de peso 19, 19 y 17 g/animal/día, y el rendimiento en canal 55, 54 y 51% para los animales del tratamiento 1, 2 y 3 respectivamente. Se sugiere que un 15% de sustitución del alimento balanceado por follaje fresco de nacedero en dietas para conejos de engorde no afecta su respuesta productiva, e incentiva el uso de plantas con alto potencial forrajero en sistemas productivos de pequeñas especies.
Rabbit production is a viable activity in Costa Rica. It offers consumers a high quality meat, and for farmers a good income with a relatively low investment. Production performance, including weight gain and dressing percentage of rabbits fed with two levels of fresh “nacedero” leaves (Trichanthera gigantea) were evaluated. The experiment was conducted in a commercial farm, using 30 weanling animals (California breed) randomly distributed among three treatments (ten animals per treatment): T1: Control: 100% commercial extruded diet, T2: 85:15, 85% commercial extruded diet and 15% nacedero fresh leaves, T3: 70:30, 70% commercial extruded diet and 30% nacedero fresh leaves. Animals were individually weighed weekly for eight weeks, then slaughtered at 88 days of age and dressing percentage calculated. Signicant dierences (p<0,05) were found between animals from treatments 1 and 2 compared to treatment 3 according to Tukey test. Treatment 3 showed the lowest nal weight (p=0,003), weight gain (p=0,008) and dressing percentage (p=0,002). Animals´ initial weights (included as a covariable) had an important eect in all parameter responses (p=0,02). Average initial weights were 441, 403 and 418 g; weight gain was 19, 19 and 17 g/animal/day and dressing percentage was 55, 54 and 51% for animals from treatments 1, 2 and 3 respectively. Dry matter intake was signicantly less in animals from treatments 2 and 3 compared to control (p<0,05). It is suggested that 15% of substitution of fresh nacedero foliage in diets for fattening rabbits did not aect productive performance; and improve the use of plants with high potential as forages in productive systems with small animal` species.
Rabbit production is a viable activity in Costa Rica. It offers consumers a high quality meat, and for farmers a good income with a relatively low investment. Production performance, including weight gain and dressing percentage of rabbits fed with two levels of fresh “nacedero” leaves (Trichanthera gigantea) were evaluated. The experiment was conducted in a commercial farm, using 30 weanling animals (California breed) randomly distributed among three treatments (ten animals per treatment): T1: Control: 100% commercial extruded diet, T2: 85:15, 85% commercial extruded diet and 15% nacedero fresh leaves, T3: 70:30, 70% commercial extruded diet and 30% nacedero fresh leaves. Animals were individually weighed weekly for eight weeks, then slaughtered at 88 days of age and dressing percentage calculated. Signicant dierences (p<0,05) were found between animals from treatments 1 and 2 compared to treatment 3 according to Tukey test. Treatment 3 showed the lowest nal weight (p=0,003), weight gain (p=0,008) and dressing percentage (p=0,002). Animals´ initial weights (included as a covariable) had an important eect in all parameter responses (p=0,02). Average initial weights were 441, 403 and 418 g; weight gain was 19, 19 and 17 g/animal/day and dressing percentage was 55, 54 and 51% for animals from treatments 1, 2 and 3 respectively. Dry matter intake was signicantly less in animals from treatments 2 and 3 compared to control (p<0,05). It is suggested that 15% of substitution of fresh nacedero foliage in diets for fattening rabbits did not aect productive performance; and improve the use of plants with high potential as forages in productive systems with small animal` species.
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carne de conejo, Orytolagus cuniculus, Trichanthera gigantea, COSTA RICA, NUTRICIÓN ANIMAL
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https://revistas.uned.ac.cr/index.php/cuadernos/article/view/624
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