Youssef,, M., Abdou, A., Hammad, M., Gomaa, A. (2002). GROWTH TRAITS AND METABOLIC PROFILE OF NEW ZEALAND WHITE RABBITS FED ON MASH OR PELLETED DIETS SUPPLEMENTED WITH A YEAST CULTURE. Journal of Animal and Poultry Production, 27(6), 3737-3745. doi: 10.21608/jappmu.2002.255552
M. M. Youssef,; Aziza M. Abdou; M. Hammad; A. M. Gomaa. "GROWTH TRAITS AND METABOLIC PROFILE OF NEW ZEALAND WHITE RABBITS FED ON MASH OR PELLETED DIETS SUPPLEMENTED WITH A YEAST CULTURE". Journal of Animal and Poultry Production, 27, 6, 2002, 3737-3745. doi: 10.21608/jappmu.2002.255552
Youssef,, M., Abdou, A., Hammad, M., Gomaa, A. (2002). 'GROWTH TRAITS AND METABOLIC PROFILE OF NEW ZEALAND WHITE RABBITS FED ON MASH OR PELLETED DIETS SUPPLEMENTED WITH A YEAST CULTURE', Journal of Animal and Poultry Production, 27(6), pp. 3737-3745. doi: 10.21608/jappmu.2002.255552
Youssef,, M., Abdou, A., Hammad, M., Gomaa, A. GROWTH TRAITS AND METABOLIC PROFILE OF NEW ZEALAND WHITE RABBITS FED ON MASH OR PELLETED DIETS SUPPLEMENTED WITH A YEAST CULTURE. Journal of Animal and Poultry Production, 2002; 27(6): 3737-3745. doi: 10.21608/jappmu.2002.255552
GROWTH TRAITS AND METABOLIC PROFILE OF NEW ZEALAND WHITE RABBITS FED ON MASH OR PELLETED DIETS SUPPLEMENTED WITH A YEAST CULTURE
1Animal Production Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
2Department of Agricultural Microbiology, National Research Centre, Cairo, Egypt
Abstract
This study aims to investigate the effect of feeding mash (T1) or pelleted (T2) diets supplemented with a pure broth culture of Saccharomyces cerevisiae on growth performance and metabolic activity of New Zealand White rabbits (NZW). Two trials were conducted using 42 NZW rabbits (18 in T1 and 24 in T2, respectively) of 6 weeks-old with 1.16 kg average live body weight. The treated diets were composed of the same ingredients of basal diet (~O) supplemented with 25% (01) or 50% (02) yeast culture (VIW) in mash form of T1. The diets composed in pelleted form were the control (POO) +10% wheat bran 0NB) as (03), POO +20% WB as (04), POO +10% yeast-loaded WB, as (05) and POO +20% yeast-loaded WB as (06). The total counts of Saccharomyces cerevisiae culture in the treated diets 01, 02, 05 and 06 were 7 .Ox1 06 and 1.4x1 07 , 1.4x1 06 and 2.8x106I ml, respectively.
Growth traits and efficiency of feed utilization were superior in treated groups of T2 over those of T1. Yeast culture treated diets realized a significant increase (P<0.05) in daily weight gain and exhibited higher efficiency of feed utilization than untreated groups. Feed conversion and economic efficiency were optimized for 02 and 06 groups.
Estimates of total blood proteins or its fractions did not show any obvious changes due to type of ration. Feeding rabbits on the mash diet resulted in a significant (P < 0.05) elevation of blood glucose, increased activity of alkaline phosphatase, while significantly (P < 0.05) reduced the transaminases activity. Concentrations of blood total protein, albumin and creatinine were the minimum when feeding the rabbits on the basal diet {~O). Yeast culture treatments increased significantly (P < 0.05) the blood content of total protein, albumin, blood urea nitrogen, glucose and the activity of alkaline phosphatase. Group 06 had greater content (P < 0.05) of albumin and blood urea nitrogen as well as higher transaminases activity in comparison with other groups. It could be concluded that application of Saccharmoyces cereviciae have a vital role in improving nutritive value of rabbits diet hence promoting their metabolic activity and growth rate.
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