| 酸化乳饲喂哺乳犊牛的研究进展 |
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| 引用本文： | 郭宁宁,张学炜,周娟,田雨佳.酸化乳饲喂哺乳犊牛的研究进展[J].中国乳业,2021,0(10):46-49. |
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| 作者姓名： | 郭宁宁 张学炜 周娟 田雨佳 |
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| 作者单位： | 1 天津农学院动物科学与动物医学学院,天津 300384;2 天津嘉立荷牧业集团有限公司,天津 300402 |
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| 摘 要： | 新生犊牛的消化道系统发育尚未完全,尤其是瘤胃和网胃。在此时期,犊牛营养主要依靠皱胃和肠道进行吸收,与单胃动物类似,液体饲料成为哺乳犊牛阶段最为理想的日粮。酸化乳是指以牛乳(含废弃乳和异常乳)或犊牛代乳粉为原料,添加酸度调节剂,使牛乳的pH保持在4.0~4.5,可以限制牛乳中病菌增殖,从而降低了犊牛的腹泻率,提高其对营养物质的消化、吸收能力,并且可以较长时间保存,节省了人工成本。本文阐述了近10 年来饲喂酸化乳对犊牛生长性能、肠道菌群结构以及免疫功能影响的研究。
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| 关 键 词： | 酸化奶 生长性能 肠道微生物 免疫功能 |
Advances in Feeding Pre-weaning Calves with Acidified Milk |
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| GUO Ningning,ZHANG Xuewei,ZHOU Juan,TIAN Yujia.Advances in Feeding Pre-weaning Calves with Acidified Milk[J].China Dairy,2021,0(10):46-49. |
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| Authors: | GUO Ningning ZHANG Xuewei ZHOU Juan TIAN Yujia |
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| Institution: | 1College of Animal Science and Animal Medicine,Tianjin Agricultural University,Tianjin 300384;2Tianjin Jialihe Animal Husbandry Group Co. Ltd.,Tianjin 300402 |
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| Abstract: | The digestive system of newborn calves is not fully developed, especially the rumen and reticulum. During this period,calf nutrition mainly relies on reed and intestinal absorption,which is similar to the single stomach animals. Liquid diet has become the ideal diet for calf lactation stage. Acidified milk refers to cow's milk(including waste milk and abnormal milk) or calf milk replacer as raw material,adding acidity regulator to keeping the pH value of milk between 4.0 and 4.5,which reduces the number of bacteria in milk,thus reducing the diarrhea rate of calves,improving the digestion and absorption capacity of nutrients,and allowing longer storage and saving labor costs. In this paper,studies on the effects of feeding acidified milk on growth performance,intestinal flora structure and immune function of calves in recent 10 years were reviewed. |
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| Keywords: | acidified milk growth performance intestinal microbiome immune function |
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