Título

Replacement of berseemhay by Salix tetrasperma on physiological performance of New Zealand White rabbits under subtropical conditions of Egypt

Autor

Salma H

Ayman HASSAN

LUIS MIGUEL CAMACHO DIAZ

Abdelfattah Zeidan Mohamed Salem

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Materias

Bloodmetabolic profile Growth performance Rabbits Salix tetrasperma CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA - (CTI)

Resumen o descripción

Forty-eight growing New Zealand White male rabbits aged 6 weeks (874±1.3 g initial body weight (BW)) were used to study effects of partial replacement of berseem hay (BH) with Salix tetrasperma hay (ST) on growth and physiological responses. Rabbits were allotted to one of four diets of 12 rabbits each for 75 days in a completely randomized design. The treatments were as follows: control (30 % BH), ST25 (7.5 % ST+22.5 % BH), ST50 (15 % ST+15 % BH), ST75 (22.5 % ST+7.5 % BH). Nutrient digestibility coefficients, nutritive value and N utilization of rabbits fed with the ST50 rations were higher (P<0.05) than the other groups. Final live BW, average daily gain, feed intake and feed efficiency of rabbits fed ST25 and ST50 were higher (P<0.05) than those fed ST75 and the control. Serum biochemical metabolites of urea, creatinine, aspartate amino transferase and alanine amino transferase concentrations varied among diets, with the rank order (P<0.05) ST75>ST25 and ST50>control. Glucose level was higher (P<0.05) for the control than the other diets. Rabbits fed with the mixed diets of ST had lower (P<0.05) total lipids, cholesterol and triglycerides levels than those fed with control. Haematological indices of packed cell volume, haemoglobin, red blood cells, white blood cells and lymphocyte counts were lower (P<0.05), but monocyte was higher, in rabbits fed with the ST75 than the other groups. However, other haematological parameters were similar among diets. Since all the performance and blood parameters were within normal ranges for healthy rabbits, and there were no signs of toxicity, we conclude that partial replacement of BH by ST improves rabbit growth performance, and did not impact rabbit health.

Editor

Springer

Fecha de publicación

19 de mayo de 2014

Tipo de publicación

Artículo

Recurso de información

http://hdl.handle.net/20.500.11799/66146

Idioma

Inglés

Audiencia

Estudiantes

Investigadores

Repositorio Orígen

REPOSITORIO INSTITUCIONAL DE LA UAEM

Descargas

133