Effect of different planes of nutrition on the some minerals concentration in the blood of goats

Abdelbaset Sayed, Nabila Gazia, Abdelsattar Abdellah, Sherif Abdelrheem

Dept. of Animal and Clinical Nutrition, Faculty of Veterinary Medicine, Assiut University, P.O. Box 71526, Assiut, Egypt

Corresponding author: Tel.:+20882411698, Mobile: +201001657386, Fax: +2088366503, Email address: baset61@yahoo.com

Accept Date: May 01, 2012 00:32

Abstract :

The effect of different levels of energy and protein on the blood concentration of calcium, phosphorus, copper and zinc were evaluated in four experiments. A total of nine growing castrated male balady kids having nearly the same age (8-9 months) and body weight (15-18kg) were experimented on. Four experiments, 3 trials per each were done on the same animals, with about 10 days as a rest period between one experiment and another, in which the animals were fed on control ration during the interval. The nine kids were randomly divided into 3 groups (A, B and C), 3 kids per each. The first group (A) was fed the control ration and used as control, while the other two groups (B and C) were fed the tested rations which furnished 15% more or less digestible energy and crude protein than the control. The results indicated that feeding a high protein ration slightly increased the mean value of serum phosphorus, Copper and zinc, while decreased the serum calcium level. Feeding a high energy ration to growing kids decreased the mean value of serum calcium, copper and zinc and increased the mean value of serum phosphorus. On the other hand, feeding a high energyhigh protein ration decreased the mean values of serum calcium and increased value of phosphorus. However, feeding a low energy ration increased serum calcium and zinc levels, while serum phosphorus and copper decreased. Feeding a low energy-high protein ration decreased the mean values of serum calcium, phosphorus, copper and zinc, while feeding low energy-low protein ration decreased the mean value of serum phosphorus and copper and increased serum calcium and zinc. Key words: Nutrition, minerals, blood, goats.