Effect of different processed legume proteins on the performance of dairy Goats

Abstract

The study aimed to examine the performance of Etawah crossbred dairy goats fed with Crotalaria as a substitute for protein source in concentrate. The study was carried out in 2 stages: 1) in vitro study to evaluate the digestibility of dry matter and organic matter from seven types of concentrates; 2) In vivo study using the best 3 types of concentrates from the results of in vitro study. The best concentrates in the first study were R1, R2 and R4. This implementation used 16 lactating Etawah crossbred dairy goats divided into 4 goats for each treatment, with a lactation period of 1 - 3 months and a goat body weight of + 39.3 kg. The data was processed by analysis of variance followed by Duncan's double test. The results showed that the treatment using C. juncea and C. usaramoensi as a source of protein concentrate influenced increasing the quantity and quality of milk. Total milk production with concentrate treatment R.2 (3.87 liters/week); R.3 (3.40 liters/week); R.1 (2.87 liters/week) and R.4 (1.58 liters/week). The quality of milk fat and solids nonfat with almost the same order as the amount of production, namely R.3 (5.21% and 9.26), R.2 (5.07% and 9.30%), R.1 (3.4% and 9.36%), R.4 (3.92 and 8.85%). The conclusion of this study was that the substitution of Crotalaria sp. (C. juncea and C. usaramoensi) as a source of protein concentrate gave a better production performance of dairy goats than the control concentrate.