Purbowati, Endang (2021) Correlation of Protein Level in the Diets on Yield Grade and Rib Eye Muscle Area ofPost-Weaning Lamb. FPP UNDIP.

Text Prakoso (Hal. 644-647), PROCEEDING APIS 2016 Malang.pdf Download (2MB)

Abstract

This study was set up to investigate the correlation between crude protein (CP) levels on yield grade and rib eye muscle area in post-weaning lamb. Twelve post-weaning lambs
aged ±3 months and body weight ±25.82 kg (CV=13.71%) were used in this study. The lamb was grouped into three for the levels of CP (12, 14 and 16%) of the feed. Totaldigestible
nutrients (TDN) of the feed was 60% which given ad libitum. The lambs were slaughtered after three months rearing period. Parameters measured were yield gradeand rib eye muscle area.Yield grade was determined by using backfat thickness at the 12th rib (surface area LD muscle) following the formula of 0.4 + (10 x backfat thicknesses in inches). Rib eye muscle area measurements was on the rack of ribs of 12nd and 13rd by using millimeter block and glass. All data were analyzed using correlation analysis. The results showed that protein levels in the diets has low correlation with the yield grade value and the rib eye muscle area, being 0.136 and 0.166, respectively. It can be concluded thatprotein levels in the feedhas low correlation on the yield grade and rib eye muscle of post-weaning lambs.
Keywords: weaning lamb, yield grade, rib eye muscle area.

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