Effects of a Living Nonfreeze-Dried Lactobacillus acidophilus Culture on Performance, Egg Quality, and Gut Microflora in Commercial Layers,
Effects of a Living Nonfreeze-Dried Lactobacillus acidophilus Culture on Performance, Egg Quality, and Gut Microflora in Commercial Layers,
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活体非冻干嗜酸乳杆菌培养物对商品蛋鸡生产性能、蛋品质和肠道菌群的影响，
DOI：
10.3382/ps.0600993
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发表时间：
1981
期刊：
影响因子：
4.4
通讯作者：
J. S. Crawford
中科院分区：
文献类型：
--
作者：
R. D. Miles;A. Arafa;R. Harms;C. W. Carlson;B. L. Reid;J. S. Crawford
摘要本研究在3个不同地理位置的2个商品品系蛋鸡饲粮中加入嗜酸乳杆菌培养物，研究其对蛋鸡生产性能、蛋品质、蛋重和肠道菌群变化的影响。乳酸杆菌培养物的添加速度为。0125年,。0375，或者。占饮食的6.625%饲喂乳酸杆菌导致一个地点（亚利桑那州）的产蛋量显著增加，第二个地点（佛罗里达州）的产蛋量有所提高，而第三个地点（南达科他州）的产蛋量没有差异。对所有产蛋数据的跨试验分析提供了在商品蛋鸡饲粮中添加乳酸杆菌的统计优势。一个地点（亚利桑那州）报告了在较低乳酸杆菌水平下饲料效率（kg/ 12个蛋）的显著反应。其他地区无法在统计上证明类似的反应。添加乳酸菌对鸡蛋品质和鸡蛋重量没有影响。在两个地点，乳酸菌处理的母鸡在温暖的月份比未处理的母鸡消耗更多的饲料。在一项研究（佛罗里达）中，在选定的胃肠道部分中，嗜酸乳杆菌微生物的早期增加伴随着大肠菌群的急剧减少。后来对微生物群的测量并没有证实这一观察结果。
Abstract A living Lactobacillus acidophilus culture was incorporated into the diets of two commercial strains of laying hens at three geographical locations to study its effect on performance, egg quality, egg weight, and alterations in gut microflora. The Lactobacillus culture was added at the rate of .0125, .0375, or .0625% of the diet. Feeding the Lactobacillus resulted in significantly increased egg production at one location (Arizona), a numerical improvement at the second (Florida), and no difference at die third location (South Dakota). An across-trial analysis of all egg production data provided a statistical advantage to adding Lactobacillus to diets of commercial layers. One location (Arizona) reported a significant response in feed efficiency (kg/doz eggs) at lower Lactobacillus levels. The other locations were unable to statistically demonstrate a similar response. The addition of Lactobacillus did not alter egg quality or egg weights. At two locations, Lactobacillus treated hens consumed more feed than nontreated hens during warmer months. An early increase in Lactobacillus acidophilus organisms accompanied by a drastic reduction in coliforms in selected gastrointestinal sections was measured in one study (Florida). A later measurement of the microflora did not substantiate this observation.