Effect of Rice Wine Distillers By-Product on Digestibility and Nitrogen Retention in Pre-Pregnant Bach Thao Goats
Effect of Rice Wine Distillers By-Product on Digestibility and Nitrogen Retention in Pre-Pregnant Bach Thao Goats
Tran Trung Tuan1,2, Nguyen Binh Truong1,2*
ABSTRACT
The present study was conducted to investigate the impacts of dietary supplementation of rice wine distillers’ by-product (RDB) on digestibility and nitrogen retention of goats. Four female goats, with an average initial body weight used in this experiment was 27.7±1.63 kg at about 10 months old. The experiment was designed as Latin Square with 4 treatments and 4 replications. The study composed of 4 periods. Each period lasted for 3 weeks with 2 weeks for adaptation, followed by 1 week for data collection of feed intake, faeces, and urine to determine the nutrient digestibility and nitrogen retention. The goats were weighed on 3 consecutive days at the start and end day of each experimental period. Four treatments were supplied rice wine distillers’ by-product at 0% (RDB0), 5% (RDB5), 10% (RDB10), and 15% (RDB15). The results showed that the amount of CP consumed was significantly (p<0.05) higher in goats fed supplementation of RDB than control treatment. Overall, the RDB supplementation did not affect the DM, DM/ BW, OM and ME intake of the goats (p>0.05). However, DM, DM/ BW, OM and ME intakes of supplementation treatments were quantitatively higher than the control group. The dietary addition of RDB had a significant effect on the CP digestibility (p<0.05) and digestibility of DM and OM tended to increase quantitatively higher in with the supplementated treatments than control group. However, NDF and ADF digestibility tended to reduce followed by the increasing rate of RDB. The results increased the effect of RDB on the nitrogen retention and DWG of the goats. Overall, the RDB supplementation affected the nitrogen intake, nitrogen retained, and nitrogen retained/ kg body weight of the goats (p<0.05). It can be concluded that RDB supplementation at 15% in pre-pregnant goat diets based on maize and elephant grass increased CP digestibility, nitrogen retention and growth performance.
Keywords | Rice wine distillers’ By-product, Digestibility, Rumen, Pre-pregnant, Goat
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March 2024
Vol. 12, Iss. 3, pp. 392-585
