elnahrawy, M. (2021). Effect of Milk, Calf Starter and Berseem Hay Feeding Regimes on Performance of Suckling Friesian and Baladi Calves. Journal of Animal and Poultry Production, 12(1), 31-38. doi: 10.21608/jappmu.2021.55029.1007
m. m. elnahrawy. "Effect of Milk, Calf Starter and Berseem Hay Feeding Regimes on Performance of Suckling Friesian and Baladi Calves". Journal of Animal and Poultry Production, 12, 1, 2021, 31-38. doi: 10.21608/jappmu.2021.55029.1007
elnahrawy, M. (2021). 'Effect of Milk, Calf Starter and Berseem Hay Feeding Regimes on Performance of Suckling Friesian and Baladi Calves', Journal of Animal and Poultry Production, 12(1), pp. 31-38. doi: 10.21608/jappmu.2021.55029.1007
elnahrawy, M. Effect of Milk, Calf Starter and Berseem Hay Feeding Regimes on Performance of Suckling Friesian and Baladi Calves. Journal of Animal and Poultry Production, 2021; 12(1): 31-38. doi: 10.21608/jappmu.2021.55029.1007
Effect of Milk, Calf Starter and Berseem Hay Feeding Regimes on Performance of Suckling Friesian and Baladi Calves
Animal and Poultry Research Institute, Agriculture Research Center, Dokki, Giza, Egypt
Abstract
Thirty two newly born calves including 16 Friesian calves and 16 Baladi (8 males and 8 females) in each group. Breeds are assigned in two feeding regimes, equalized by breed, sex and birth weight and continued in a feeding trial during suckling period until reached weaning105 days as follows:Regime(I): 78.34% milk + 11.68% calf starter + 9.98% berseem hay, Regime(II): 72.49% milk + 19.62% calf starter + 7.89% berseem hay. Results showed that digestibilities of CF and EE were significantly higher (P<0.05), however digestibilities of DM, OM, NFE were significantly lower (P<0.05) in regime(I). Whereas, CP digestibility, TDN and DCP were nearly similar. Only ruminal TVFA’s concentration was significantly higher (P<0.05) with increasing the amount of calf starter in regime(II) compared with regime(I). Whereas, ruminal pH and NH3-N concentration, all blood serum metabolites and intake of DM, TDN and DCP were nearly similar. WG, TWG, average DG and feed conversion ratio were higher significantly (P<0.05) for calves fed regime(II). However, weight gain output, net output and economic efficiency were higher significantly (P<0.05) in regime(II). Economic efficiency increased by 27.21 and 39.83% for regime II compared with regime(I). Feeding regime(II) improved average DG of Friesian and Baladi calves by 11.88 and 18.40%, respectively, which increased by 6.52% for Baladi calves than Friesian calves. Friesian calves revealed significantly (P<0.05) higher feed conversion ratio compared with Baladi calves. Economic efficiency increased by 13.84 and 22.18% for Friesian compared with Baladi calves. Whereas, there were no any significant differences between male and female calves.
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