Utilizing Fermented Soya Waste in the Diet of Boer Crossbred Goats
Utilizing Fermented Soya Waste in the Diet of Boer Crossbred Goats
Truong Thanh Trung1*, Nguyen Thuy Linh2, Nguyen Thi Kim Dong3, Windi Al Zahra4
ABSTRACT
The production of goats in Vietnam has been steadily increasing each year because of the low cost of investment and the use of local forage. However, the rising cost of concentrated feed in recent years has resulted in a decrease in profits from goat production. Fermented soya waste is a byproduct that can be utilized for goats as it provides high nutrition at a low feed cost. The experiment was designed as a 5×5 Latin square composed of five crossbred buck goats (Boer x Bach Thao) aged 3 months and weighing an average of 13.46± 1.04 kg. This trial aimed to assess how substituting mixed concentrate feed with fermented probiotic soya waste (FPSW) affected the growth performance of crossbred bucks. There were four periods, each lasting 21 days. This included 14 days for diet adaptation and 7 days for collecting all samples, resulting in a total of 105 days of data collection. Goats were fed a control diet (Ctrl) with 100% mixed concentrate feed (MCF) while the other four treatments included varying levels of MCF replacement with FPSW in diet: 75% MCF, 50% MCF, 25% MCF, 0% MCF. The results showed that this replacement did not significantly affect the digestibility of nutrients (P>0.05), nitrogen balance (P>0.05), and digestible nutrients, except for a gradual decrease in digestible neutral detergent fiber (P<0.05). The treatment replacing 75% FPSW gave higher results compared to others on performances: ADG (196 g/day), FCR (3.55), and amount of VFAs after 3 hours of feeding (109 µmol/ml) and the best economic returns (more than 47% increased in income compared to using a diet of 100% mixed concentrate feed). To conclude, replacing 75% of the diet with FPSW improved growth performance without adversely affecting the digestibility of nutrients and nitrogen balance of the animals.
Keywords | Fermented probiotics soya waste, Growing goat, Mixed concentrate feed, Rumen fermentation, Economic efficiency, Daily weight gain
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