Milk Production and Quality of Lactating Yak Fed Oat Silage Prepared with a Low-Temperature-Tolerant Lactic Acid Bacteria Inoculant
This study aimed to investigate the effect of oat silage treated with a low-temperature-tolerant lactic acid bacteria (LAB) inoculant on milk yield and the quality of lactating yaks. Oat silages were prepared in big round bales, treated without (control) or with a low-temperature-tolerant LAB inocul...
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MDPI AG
2021-10-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/10/10/2437 |
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| author | Mingming Zhu Rongqing Xie Liangyin Chen Minghong You Wenlong Gou Chao Chen Ping Li Yimin Cai |
| author_facet | Mingming Zhu Rongqing Xie Liangyin Chen Minghong You Wenlong Gou Chao Chen Ping Li Yimin Cai |
| author_sort | Mingming Zhu |
| collection | DOAJ |
| description | This study aimed to investigate the effect of oat silage treated with a low-temperature-tolerant lactic acid bacteria (LAB) inoculant on milk yield and the quality of lactating yaks. Oat silages were prepared in big round bales, treated without (control) or with a low-temperature-tolerant LAB inoculant (a mixture of <i>Lactobacillus plantarum</i> BP18, <i>Pediococcu</i><i>s pentosaceus</i> HS1 and <i>L</i><i>actobacillus buchneri</i> LP22; the application rate of 10<sup>5</sup> cfu/g on a fresh matter basis). Eighteen lactating yaks were divided into nine pairs with a similar milk yield. Each pair of yaks was randomly allocated to the control or LAB-inoculated silage treatment. The inoculated silage increased the dry matter intake and the total volatile fatty acid (mainly acetate, propionate and butyrate) in rumen fluid compared with the control. The inoculated silage also enhanced the yield of yak milk with high contents of total N, fat and lactose. In addition, high levels of essential amino acids (Thr, Leu and Phe), polyunsaturated fatty acids and low saturated fatty acids were observed in milk when lactating yaks were fed with the inoculated silage. Therefore, inoculation with a low-temperature-tolerant LAB during ensiling could promote the milk yield of lactating yaks by enhancing dry matter intake and ruminal fermentation. |
| first_indexed | 2024-03-10T06:34:10Z |
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| id | doaj.art-e81ac5d473d44393b92ca7c3f0fff0dd |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-10T06:34:10Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj.art-e81ac5d473d44393b92ca7c3f0fff0dd2023-11-22T18:16:06ZengMDPI AGFoods2304-81582021-10-011010243710.3390/foods10102437Milk Production and Quality of Lactating Yak Fed Oat Silage Prepared with a Low-Temperature-Tolerant Lactic Acid Bacteria InoculantMingming Zhu0Rongqing Xie1Liangyin Chen2Minghong You3Wenlong Gou4Chao Chen5Ping Li6Yimin Cai7College of Animal Science, Guizhou University, Guiyang 550025, ChinaSichuan Academy of Grassland Sciences, Chengdu 611731, ChinaCollege of Animal Science, Guizhou University, Guiyang 550025, ChinaSichuan Academy of Grassland Sciences, Chengdu 611731, ChinaSichuan Academy of Grassland Sciences, Chengdu 611731, ChinaCollege of Animal Science, Guizhou University, Guiyang 550025, ChinaCollege of Animal Science, Guizhou University, Guiyang 550025, ChinaJapan International Research Center for Agricultural Science (JIRCAS), Tsukuba 305-8686, JapanThis study aimed to investigate the effect of oat silage treated with a low-temperature-tolerant lactic acid bacteria (LAB) inoculant on milk yield and the quality of lactating yaks. Oat silages were prepared in big round bales, treated without (control) or with a low-temperature-tolerant LAB inoculant (a mixture of <i>Lactobacillus plantarum</i> BP18, <i>Pediococcu</i><i>s pentosaceus</i> HS1 and <i>L</i><i>actobacillus buchneri</i> LP22; the application rate of 10<sup>5</sup> cfu/g on a fresh matter basis). Eighteen lactating yaks were divided into nine pairs with a similar milk yield. Each pair of yaks was randomly allocated to the control or LAB-inoculated silage treatment. The inoculated silage increased the dry matter intake and the total volatile fatty acid (mainly acetate, propionate and butyrate) in rumen fluid compared with the control. The inoculated silage also enhanced the yield of yak milk with high contents of total N, fat and lactose. In addition, high levels of essential amino acids (Thr, Leu and Phe), polyunsaturated fatty acids and low saturated fatty acids were observed in milk when lactating yaks were fed with the inoculated silage. Therefore, inoculation with a low-temperature-tolerant LAB during ensiling could promote the milk yield of lactating yaks by enhancing dry matter intake and ruminal fermentation.https://www.mdpi.com/2304-8158/10/10/2437silagelactic acid bacteriayak milkrumen fermentationfat acid |
| spellingShingle | Mingming Zhu Rongqing Xie Liangyin Chen Minghong You Wenlong Gou Chao Chen Ping Li Yimin Cai Milk Production and Quality of Lactating Yak Fed Oat Silage Prepared with a Low-Temperature-Tolerant Lactic Acid Bacteria Inoculant Foods silage lactic acid bacteria yak milk rumen fermentation fat acid |
| title | Milk Production and Quality of Lactating Yak Fed Oat Silage Prepared with a Low-Temperature-Tolerant Lactic Acid Bacteria Inoculant |
| title_full | Milk Production and Quality of Lactating Yak Fed Oat Silage Prepared with a Low-Temperature-Tolerant Lactic Acid Bacteria Inoculant |
| title_fullStr | Milk Production and Quality of Lactating Yak Fed Oat Silage Prepared with a Low-Temperature-Tolerant Lactic Acid Bacteria Inoculant |
| title_full_unstemmed | Milk Production and Quality of Lactating Yak Fed Oat Silage Prepared with a Low-Temperature-Tolerant Lactic Acid Bacteria Inoculant |
| title_short | Milk Production and Quality of Lactating Yak Fed Oat Silage Prepared with a Low-Temperature-Tolerant Lactic Acid Bacteria Inoculant |
| title_sort | milk production and quality of lactating yak fed oat silage prepared with a low temperature tolerant lactic acid bacteria inoculant |
| topic | silage lactic acid bacteria yak milk rumen fermentation fat acid |
| url | https://www.mdpi.com/2304-8158/10/10/2437 |
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