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Vol. 12, Special Issue 11 (2023)

Effect of supplementing rumen-protected methionine and lysine with lower crude protein diet on apparent digestibility and rumen fermentation of crossbred female calves

Author(s):
Ashish Metiya, Safi Vahora, Ashish Patel and Jigar Patel
Abstract:
The objective of this study was to explore the effect of supplementing rumen-protected methionine (RPM) and lysine (RPL) with a lower crude protein diet on apparent digestibility, nitrogen efficiency and rumen fermentation of crossbred (HF×Kankrej) female calves. In this study, twelve crossbred female calves were randomly allotted to two groups T1 and T2 on their body weight. The duration of the experiment was 98 days. Calves in T1 were fed basal TMR to meet the nutrient requirement as per ICAR (2013) [7] standard and in T2 were fed with TMR with 2% less CP than the T1 group plus 2 g/kg DM RPM and 6 g/kg DM RPL. At the end of the experiment, the digestibility coefficient of DM was significantly (p<0.05) reduced in T2 groups compared to T1. However, the T1 and T2 groups did not differ with respect to the digestibility coefficient of OM, CP, EE, CF and NFE. The average DCP (%) during the digestion trial was significantly (p<0.05) lower in T2 group compared to T1. The average fecal N excretion (g/d) and N intake (g/d) were significantly (p<0.05) reduced in the T2 group compared to T1. The percent fecal nitrogen excretion as N intake (N efficiency) was significantly (p<0.05) lower in T2 compared to T1 resulting better nitrogen efficiency in reduced crude protein diet supplemented with RPM and RPL. Total volatile fatty acid and Total nitrogen concentration in strained rumen liquor were significantly decreases in T2 compared to T1 without affecting TDN value of the diet showing the beneficial effect of reduced CP diet supplemented with RPM and RPL.
Pages: 1777-1781  |  108 Views  50 Downloads
How to cite this article:
Ashish Metiya, Safi Vahora, Ashish Patel and Jigar Patel. Effect of supplementing rumen-protected methionine and lysine with lower crude protein diet on apparent digestibility and rumen fermentation of crossbred female calves. The Pharma Innovation Journal. 2023; 12(11S): 1777-1781.
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