Ramadan, W., El-Harairy, M., Khalil, W., Youssef, A. (2017). Impact of Adding Rumen Protected Lysine or/and Methionine on Some Wool Characteristics in Barki Sheep. Journal of Animal and Poultry Production, 8(7), 173-177. doi: 10.21608/jappmu.2017.45844
W. . A. Ramadan; M. A. El-Harairy; W. A. Khalil; Alaa H. Youssef. "Impact of Adding Rumen Protected Lysine or/and Methionine on Some Wool Characteristics in Barki Sheep". Journal of Animal and Poultry Production, 8, 7, 2017, 173-177. doi: 10.21608/jappmu.2017.45844
Ramadan, W., El-Harairy, M., Khalil, W., Youssef, A. (2017). 'Impact of Adding Rumen Protected Lysine or/and Methionine on Some Wool Characteristics in Barki Sheep', Journal of Animal and Poultry Production, 8(7), pp. 173-177. doi: 10.21608/jappmu.2017.45844
Ramadan, W., El-Harairy, M., Khalil, W., Youssef, A. Impact of Adding Rumen Protected Lysine or/and Methionine on Some Wool Characteristics in Barki Sheep. Journal of Animal and Poultry Production, 2017; 8(7): 173-177. doi: 10.21608/jappmu.2017.45844
Impact of Adding Rumen Protected Lysine or/and Methionine on Some Wool Characteristics in Barki Sheep
1Wool Production and Technology Department, Animal and Poultry Production Division, Desert Research Center.
2Animal Production Department, Faculty of Agriculture, Mansoura University
Abstract
Twenty four adult Barki eweswere used to investigate the effect of addition of rumen protected amino acids, lysine or/and methionineon some wool characteristics. This study was carried out from September 2016 to February 2017. Animals were divided into four groups (6ewes/group). The first group (Control): fed only the control diet, second group (LYS): fed the control diet and rumen protected lysine (6g Lysi pearl /kg concentrate, 3g /animal/day), third group (MET): fed the control diet and rumen protected methionine (14g Smartamin/kg concentrate, 7g /animal/day) and fourth group (LYS+MET): fed the control diet and mixture of (3g LYS and 7g MET/animal/day) for six months. Some wool measurements were investigated such as fiber length, fiber diameter, staple strength and wool growth per 10 cm2 and clean wool yield. Results showed that supplementing methionine caused significant (P<0.05) increase in fiber length, fiber diameter, staple strength and clean wool yield. Lysine increased fiber length significantly (P<0.05), but did not affect clean wool yield and caused small increase in both staple strength and fiber diameter. Supplementing of (mixture of methionine and lysine) increased significantly fiber length, wool yield and staple strength, but caused insignificant increase in clean wool production per 10cm2, but had no significant effect on fiber diameter.From these results, it can be concluded that addition of rumen protected methionine (7g Smartamin/animal/day) forsix monthsenhanced significantly wool characteristics of Barki ewes (fiber length, fiber diameter, staple strength and clean wool yield).
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