Study on Rumen Degradability and Intestinal Digestibility of Mutton Sheep Diets with Different Concentrate-to-Forage Ratios and Nonfiber Carbohydrates/Neutral Detergent Fiber Ratios
This study was conducted to investigate the rumen degradability and intestinal digestibility of mutton sheep diets different in concentrate-to-forage ratio, NFC/NDF, and ingredient combination, providing a guideline for the selection of a fattening diet for mutton sheep. Twenty-eight diets composed...
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MDPI AG
2024-09-01
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| Series: | Animals |
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| author | Xunyu Guo Lei Sun Zibin Zheng Xiaogao Diao Liwen He Xiaoling Dong Wei Zhang |
| author_facet | Xunyu Guo Lei Sun Zibin Zheng Xiaogao Diao Liwen He Xiaoling Dong Wei Zhang |
| author_sort | Xunyu Guo |
| collection | DOAJ |
| description | This study was conducted to investigate the rumen degradability and intestinal digestibility of mutton sheep diets different in concentrate-to-forage ratio, NFC/NDF, and ingredient combination, providing a guideline for the selection of a fattening diet for mutton sheep. Twenty-eight diets composed of four raw material combinations and seven concentrate-to-forage ratios and four three-year-old mutton sheep with permanent rumen fistulas were used in the experiments. The nutrient composition of the diets was first analyzed, and then an in situ method and in vitro three-step method were separately used to measure the rumen degradability and intestinal digestibility, mainly focusing on the effects of dietary concentrate-to-forage ratio and NFC/NDF as well as the effects of soybean meal and soybean meal replacement and peanut vine and peanut vine replacement. The results showed that a dietary concentrate-to-forage ratio of 70:30~80:20 and an NFC/NDF ratio of 1.5~2.0 are recommended for fattening mutton sheep, and low-cost cottonseed meal and rapeseed meal can be feasible alternative protein sources to soybean meal. In addition, the nutritional values of sunflower seed hulls and rice hulls for mutton sheep are lower than that of peanut vine. Such a study can provide practical guidelines for enterprises and farmers, being of important significance for the high-quality development of the mutton sheep industry. |
| format | Article |
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| language | English |
| publishDate | 2024-09-01 |
| publisher | MDPI AG |
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| series | Animals |
| spelling | doaj-art-776ea7633f03436f9ced3471a2efd76d2025-08-20T01:47:44ZengMDPI AGAnimals2076-26152024-09-011419281610.3390/ani14192816Study on Rumen Degradability and Intestinal Digestibility of Mutton Sheep Diets with Different Concentrate-to-Forage Ratios and Nonfiber Carbohydrates/Neutral Detergent Fiber RatiosXunyu Guo0Lei Sun1Zibin Zheng2Xiaogao Diao3Liwen He4Xiaoling Dong5Wei Zhang6State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaBeijing DaBeiNong Technology Group Co., Ltd., Beijing 100095, ChinaState Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaSanya Institute, China Agricultural University, Sanya 572025, ChinaState Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaBeijing DaBeiNong Technology Group Co., Ltd., Beijing 100095, ChinaState Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, ChinaThis study was conducted to investigate the rumen degradability and intestinal digestibility of mutton sheep diets different in concentrate-to-forage ratio, NFC/NDF, and ingredient combination, providing a guideline for the selection of a fattening diet for mutton sheep. Twenty-eight diets composed of four raw material combinations and seven concentrate-to-forage ratios and four three-year-old mutton sheep with permanent rumen fistulas were used in the experiments. The nutrient composition of the diets was first analyzed, and then an in situ method and in vitro three-step method were separately used to measure the rumen degradability and intestinal digestibility, mainly focusing on the effects of dietary concentrate-to-forage ratio and NFC/NDF as well as the effects of soybean meal and soybean meal replacement and peanut vine and peanut vine replacement. The results showed that a dietary concentrate-to-forage ratio of 70:30~80:20 and an NFC/NDF ratio of 1.5~2.0 are recommended for fattening mutton sheep, and low-cost cottonseed meal and rapeseed meal can be feasible alternative protein sources to soybean meal. In addition, the nutritional values of sunflower seed hulls and rice hulls for mutton sheep are lower than that of peanut vine. Such a study can provide practical guidelines for enterprises and farmers, being of important significance for the high-quality development of the mutton sheep industry.https://www.mdpi.com/2076-2615/14/19/2816dietary concentrate-to-forage ratioNFC/NDFrumen degradabilityintestine digestibilitymutton sheep |
| spellingShingle | Xunyu Guo Lei Sun Zibin Zheng Xiaogao Diao Liwen He Xiaoling Dong Wei Zhang Study on Rumen Degradability and Intestinal Digestibility of Mutton Sheep Diets with Different Concentrate-to-Forage Ratios and Nonfiber Carbohydrates/Neutral Detergent Fiber Ratios Animals dietary concentrate-to-forage ratio NFC/NDF rumen degradability intestine digestibility mutton sheep |
| title | Study on Rumen Degradability and Intestinal Digestibility of Mutton Sheep Diets with Different Concentrate-to-Forage Ratios and Nonfiber Carbohydrates/Neutral Detergent Fiber Ratios |
| title_full | Study on Rumen Degradability and Intestinal Digestibility of Mutton Sheep Diets with Different Concentrate-to-Forage Ratios and Nonfiber Carbohydrates/Neutral Detergent Fiber Ratios |
| title_fullStr | Study on Rumen Degradability and Intestinal Digestibility of Mutton Sheep Diets with Different Concentrate-to-Forage Ratios and Nonfiber Carbohydrates/Neutral Detergent Fiber Ratios |
| title_full_unstemmed | Study on Rumen Degradability and Intestinal Digestibility of Mutton Sheep Diets with Different Concentrate-to-Forage Ratios and Nonfiber Carbohydrates/Neutral Detergent Fiber Ratios |
| title_short | Study on Rumen Degradability and Intestinal Digestibility of Mutton Sheep Diets with Different Concentrate-to-Forage Ratios and Nonfiber Carbohydrates/Neutral Detergent Fiber Ratios |
| title_sort | study on rumen degradability and intestinal digestibility of mutton sheep diets with different concentrate to forage ratios and nonfiber carbohydrates neutral detergent fiber ratios |
| topic | dietary concentrate-to-forage ratio NFC/NDF rumen degradability intestine digestibility mutton sheep |
| url | https://www.mdpi.com/2076-2615/14/19/2816 |
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