Productive performance of grazing heterozygous naked neck fowls, with different vital spaces and Morus alba leaf meal included in the ration

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Santos Magdalena Herrera
Lourdes Savón
Esmeralda Lon Wo
Magaly Herrera

Resumen

In order to study the productive performance of heterozygous naked neck fowls, with different vital spaces, a total of 144 fowls of T451N breed, without being sexed, from 1 to 91 d old were used. They were distributed according to a random blocks design, with a 3 x 2 factorial arrangement in six treatments: three vital spaces (5, 10 and 15 m2) and two diets (0 and 3 % of Morus alba leaf meal), at 30 % of restriction. Weight gain, food conversion, carcass yield and its main cuts and abdominal fat deposition were evaluated. The space-diet interaction was significant in intake, weight gain (P < 0.05) and food conversion (P < 0.01). Results indicated a higher productive efficiency with 10 m2/fowls. Regarding control diet (1.62 g/kg LW), the highest liveweight (3.15 kg) and the lower abdominal fat deposition (1.46 g/kg of LW) were obtained when including 3 % of mulberry leaf meal, regardless the vital space used. The vital space influenced on carcass yield and its main cuts (drumsticks+tighs and breast), which were superior within 10 and 15 m2. It can be concluded that breeding grazing heterozygous naked neck fowls, fed with a diet with 3 % of mulberry leaf meal, at 30 % of restriction in 10 m2 per fowl, improved productive performance.

Key words: grazing rearing, mulberry, naked neck fowls, abdominal fat

Detalles del artículo

Cómo citar
Herrera, S. M., Savón, L., Lon Wo, E., & Herrera, M. (2016). Productive performance of grazing heterozygous naked neck fowls, with different vital spaces and Morus alba leaf meal included in the ration. Cuban Journal of Agricultural Science, 48(3). Recuperado a partir de https://cjascience.com/index.php/CJAS/article/view/582
Sección
Ciencia Animal

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