Studies on supplementary desalted mother liquor on digestibility of nutrients, ruminal fermentation, and energy and nitrogen balance in Thai native cattle

• Published in: Animal Science Journal
• Main Authors: Sakai, Takashi, Angthong, Wanna, Takeda, Motoharu, Oishi, Kazato, Hirooka, Hiroyuki, Kumagai, Hajime
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2017
• Subjects: DML
• Online Access: http://dx.doi.org/10.1111/asj.12790; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fasj.12790; https://onlinelibrary.wiley.com/doi/pdf/10.1111/asj.12790

Abstract Four Thai native steers were used to determine the adequate levels of supplementary desalted mother liquor ( DML ) for energy and nitrogen balances and ruminal fermentation. The crude protein and sodium chloride contents of DML were 25.5% and 60.3% on a dry matter (DM) basis, respectively. A 4 × 4 Latin square design experiment was conducted by adding different amounts of DML to three experimental diets (T1: 1.1%, T2: 2.2%, T3: 3.4% sodium chloride concentration with supplementary DML on a DM basis) and comparing their effects with those of a control diet (C) containing 1.0% commercial salt on a DM basis. The animals were given the experimental diets and rice straw daily at 1.2% and 0.8% of body weight, respectively, on a DM basis. No significant differences in the apparent digestibility of nutrients were observed among treatments. T3 achieved the lowest nitrogen retention ( P < 0.05), followed by C, T2 and T1. The ratios of energy retention to gross energy were higher in T1 and T3 than T2, and that in C was lowest ( P < 0.05). Supplementary NaCl concentration at 1% and 2% can be replaced with DML without an adverse effect on the digestibility of nutrients or on the nitrogen and energy retention.