Effects of feeding liquid brewer's yeast on growth performance, carcass characteristics, and meat quality of finishing pigs
2019
Suzuki, M. (Aichi Agricultural Research Center, Nagakute, Aichi (Japan)) | Masuda, T. | Kawamoto, T. | Tajima, S. | Uchikura, K. | Kurita, T.
The effects of feeding liquid brewer's yeast (LBY) on growth, carcass characteristics, and meat quality of finishing pigs were investigated. The LBY diet was prepared by replacing soybean meal (control diet) with LBY (experimental diet). A total of 12 crossbred pigs (Large White×Landrace×Duroc, six barrows and six gilts) were housed at a density of two pigs (one barrow and one gilt of similar weight) per pigpen, and three pigpens were assigned to each of the control and LBY diet groups. Pigs were supplied either the control or LBY diet when their weight reached approximately 80kg, and feeding was stopped when their weight reached approximately 115kg. The experimental diet contained sufficient crude protein (CP) and total digestible nutrients (TDN), with dry weights of 15% and 75%, respectively, which were diluted with water to obtain a final dry weight of 22%. Growth performance, carcass characteristics, and sensory evaluation of the longissimus dorsi muscle were not significantly different between the groups. The fatty acid composition in the LBY group showed a significant decrease in C18 : 2 and C18 : 3 content and a high fat melting point. These results indicate that LBY may be a useful protein source for swine.
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