¹Faculty of Agriculture, Universitas Sebelas Maret, Indonesia

Email: jokoriyanto@staff.uns.ac.id

This study aims to examine the effect of using protected and unprotected soybean groats with different ratios on the nutritional quality of silverside and chuck thin-tailed lamb meat. The research design used was a completely randomized design (CRD) with three treatments. The treatment consisted of a ration containing protected: unprotected soybean groats with a ratio of P1= 10%: 5%, P2= 7.5%: 7.5% and P3= 5%: 10%. The data obtained were analyzed for variance, if there was an effect of treatment, further tests were carried out with orthogonal contrast tests. The results of the analysis of variance showed that cholesterol levels were affected by the ratio of protected and unprotected soybean groats (P<0.05) while the water, protein and fat content of beef and thin tail lamb ham were not affected by the ratio of protected and unprotected soybean groats (P>0.05). The nutritional content of thin-tailed lamb was not affected by differences in the type of meat (P>0.05). The conclusion of the study was that the cholesterol levels of thin-tailed lamb that were given rations containing protected : unprotected soybean groats (10%: 5%) were 20% lower than those given rations with a ratio of 7.5%: 7.5% and 5%: 10. %. The nutrition of thin tail lamb has the same quality based on water, protein and fat content.