Effects of dietary glycerol inclusion on growth performance, carcass and meat quality characteristics, glycogen content, and meat volatile compounds in Korean cattle steers

文献类型： 外文期刊

第一作者： Piao, Minyu

作者： Piao, Minyu;Jung, Da Jin Sol;Kang, Hyeok Joong;Park, Seung Ju;Lee, Jin Oh;Kim, Minsu;Kim, Hyun Jin;Kim, Do Hyun;Jo, Cheorun;Haque, Md Najmul;Baik, Myunggi;Piao, Minyu;Jung, Da Jin Sol;Kang, Hyeok Joong;Park, Seung Ju;Lee, Jin Oh;Kim, Minsu;Kim, Hyun Jin;Kim, Do Hyun;Jo, Cheorun;Haque, Md Najmul;Baik, Myunggi;Piao, Minyu;Seo, Ja Kyeom;Seo, Ja Kyeom;Jo, Cheorun;Baik, Myunggi

作者机构：

关键词： Korean Cattle Steer; Glycerol; Feed Intake; Carcass and Sensory Traits; Glycogen Contents; Volatile Compounds

期刊名称：ANIMAL BIOSCIENCE

ISSN： 2765-0189

年卷期： 2021 年 34 卷 4 期

页码：

收录情况： SCI

摘要： Objective: We have tested our hypothesis that inclusion of purified glycerol as a replacer of portions of dried distillers grain with solubles (DDGS) would affect growth performance, rumen fermentation and blood parameters, carcass and sensory traits, reducing sugar and glycogen contents, and volatile compound profiles in longissimus thoracis (LT) in Korean cattle steers. Methods: A total of 20 Korean cattle steers (27.0 +/- 0.2 months old; 647 +/- 10.5 kg body weight [BW]) were assigned to a conventional control group or a glycerol group (3.17% purified glycerol addition as a replacement for DDGS and molasses). The steers were individually allowed to receive the experimental concentrate at the daily amount of 1.5% of their individual BW and a total 1.0 of kg/d of rice straw twice daily. The feeding trial was conducted for a period of 20 weeks. Results: Glycerol supplementation (GS) increased (p = 0.001) concentrate intake. However, GS did not affect (p>0.05) average daily gain, feed efficiency, and ruminal volatile fatty acid concentrations. GS tended to increase (p <= 0.10) serum glucose concentrations at the 16th and 20th weeks. GS decreased (p = 0.001) LT pH. GS did not affect (p>0.05) carcass traits and the chemical or physicochemical compositions, reducing sugar or glycogen contents, sensory traits, and most of volatile compounds in the LT. Conclusion: The inclusion of purified glycerol as a replacement for DDGS in the finishing diet did not affect growth performance, rumen fermentation parameters, and carcass quality in Korean cattle. The purified glycerol could be used as a substitute for other energy sources such as DDGS in beef cattle, depending on the price.

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