Effects of feeding mother liquor, by‐product of monosodium glutamate, on digestibility, energy and nitrogen balances, and rumen condition in Thai native bulls

Abstract

High protein feeds such as soybean meal are necessary for improvement of livestock performances. Thailand is the fourth largest importer of soybean meal in the world, importing 2.9 million tons per year (USDA, 2018a). However, the price for imported soybean meal is still expensive, and it was 14.57 baht/kg (U.S. $0.429/kg) in 2017 (USDA, 2018b). Thus, there is a need for alternative ingredients with high protein content in Thailand (Wanapat, 2004). The monosodium glutamate (MSG) is widely used as a seasoning and produced about 1.8 million tons in the world (Nakamura, 2008). Thailand is one of the major manufacturing countries of MSG. The manufacturing MSG produces a by-product of mother liquor (ML) containing much crude protein (CP) as non-protein nitrogen: glutamate and ammonium sulfate (Padunglerk, Prasanpanich, & Kongmun, 2017), thus, it could be utilized as the replacement of soybean meal for ruminants. However, the studies on the ML have been mainly for utilization as fertilizer (

The Effects of Monosodium Glutamate by Product Treated Rice Straw in Total Mixed Rations on Rumen Fermentation and Ruminal Microbial Populations Using an In Vitro Gas Technique

“…MSGB demonstrates its potential in various livestock species, including swine, beef cattle, dairy cows, and goats (Padunglerk et al, 2016). The volume of MSGB produced is up to 6,200 tons/year (Katsumata et al, 2020). In Thailand, MSGB plays a key role in improving the roughage quality and solving the problem of shortage of roughage for goats.…”