Shakweer ,, I., EL-Nahas, H. (2005). PRODUCTIVE PERFORMANCE OF SUCKLING CALVES FED DIETS SUPPLEMENTED WITH ZINC METHIONINE.. Journal of Animal and Poultry Production, 30(6), 3037-3046. doi: 10.21608/jappmu.2005.237990
I. M.E. Shakweer ,; H. M. EL-Nahas. "PRODUCTIVE PERFORMANCE OF SUCKLING CALVES FED DIETS SUPPLEMENTED WITH ZINC METHIONINE.". Journal of Animal and Poultry Production, 30, 6, 2005, 3037-3046. doi: 10.21608/jappmu.2005.237990
Shakweer ,, I., EL-Nahas, H. (2005). 'PRODUCTIVE PERFORMANCE OF SUCKLING CALVES FED DIETS SUPPLEMENTED WITH ZINC METHIONINE.', Journal of Animal and Poultry Production, 30(6), pp. 3037-3046. doi: 10.21608/jappmu.2005.237990
Shakweer ,, I., EL-Nahas, H. PRODUCTIVE PERFORMANCE OF SUCKLING CALVES FED DIETS SUPPLEMENTED WITH ZINC METHIONINE.. Journal of Animal and Poultry Production, 2005; 30(6): 3037-3046. doi: 10.21608/jappmu.2005.237990
PRODUCTIVE PERFORMANCE OF SUCKLING CALVES FED DIETS SUPPLEMENTED WITH ZINC METHIONINE.
Animal Production Research Institute, Agricultural Research Center, Ministry of Agric.Giza.Egypt.
Abstract
Twenty newly born suckling Frieslan calves were divided into four similar groups
(5 calves each) after fed one week on colostrums and fed on ration supplementation
with the same level of zinc methionine as their dams (Shakweer at all. 2005) (0.00,
40, 80 and 120mg zinclheadlday NRC (1988) during their 120 days sulking period to
study the effect of zinc methionine supplementation on nutrient digestibility , feed
efficiency , and calves performance , Rumen and blood parameters were also
investigated ,Calves were individually led on rations consisted of starter . berseem
hay and assigned whole milk. Results indicated that addition of zinc methionine
increased (P<0.05) the digestibility of all nutrients which was reflected on the nutritive
values (as TDN .DCP ) . Addition of 40mg zinc methionine (hid showed higher calves
daily gain than that oi the other levels or that of the control group . Concerning rumen
parameters , results showed that although higher total protein, pH and volatile fatty
acids ( TVFA‘s) were increased by increasing the level of zn methionine
supplementation in the ration , yet ammonia-N was decreased .
Generally it cold be concluded that addition of 40mg zinc methionine ihld
improved nutrient digestibility. feed efficiency and Friesian suckling calves daily gain
View on SCiNiTO
Top