Seasonal changes of rumen and intestine morphology of the Qinghai yak (Bos grunniens)

Aim: The aim of the current study was to investigate the effects of seasonal changes in grass quality on the ruminal and intestinal morphology of male Qinghai yaks. Materials and Methods: A total of four male yaks with the same age of 4 years old from each season (summer and winter) were randomly...

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Main Authors: Bao A. Ding, Shuang Q. Ma, Zong R. Li, Xi L. Li, Stephen R. Madigosky
Format: Article
Language:English
Published: Veterinary World 2018-08-01
Series:Veterinary World
Subjects:
Online Access:http://www.veterinaryworld.org/Vol.11/August-2018/17.pdf
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spelling doaj-cde37bf7ef7044cc8f0ded7067dffc0b2021-08-02T08:16:47ZengVeterinary WorldVeterinary World0972-89882231-09162018-08-011181135113810.14202/vetworld.2018.1135-1138Seasonal changes of rumen and intestine morphology of the Qinghai yak (Bos grunniens)Bao A. Ding0Shuang Q. Ma1Zong R. Li2Xi L. Li3Stephen R. Madigosky4State Key Laboratory of Plateau Ecology and Agriculture, College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China.State Key Laboratory of Plateau Ecology and Agriculture, College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China.State Key Laboratory of Plateau Ecology and Agriculture, College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China.State Key Laboratory of Plateau Ecology and Agriculture, College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China.Department of Environmental Science and Biology, One University Place, Chester, PA, 19013, Widener University. USA.Aim: The aim of the current study was to investigate the effects of seasonal changes in grass quality on the ruminal and intestinal morphology of male Qinghai yaks. Materials and Methods: A total of four male yaks with the same age of 4 years old from each season (summer and winter) were randomly selected and slaughtered to determine the effect of different season on intestinal morphology of yak in the Qinghai-Tibetan Plateau. Results: The histological analysis shows that male yak has the longer and wider papillae in rumen in green season. The height of villi in duodenum and jejunum was significantly higher in green season, and the width of villi on duodenum, jejunum, ileum, and rectum was significantly wider in green season. Surface area of villi and crypt depth in duodenum, jejunum, and ileum was significantly larger and deeper in green season. Submucosa thickness of duodenum, jejunum, ileum, and rectum was significantly thicker in green season. The muscular thickness of jejunum, cecum, and rectum was significantly thicker in green season. Conclusion: According to this research, we found that the seasonal changes of ruminal and intestinal morphology of yak showed different length and width papillae, villi, crypt, and submucosa. This fact was confirmed the functional advantages resulting from the ability to successfully adapt to a dry climate and diets, flat, open, and cold grassland may allow yak to overcome both water shortage and energy deficiency in winter.http://www.veterinaryworld.org/Vol.11/August-2018/17.pdfgreen grassintestinemorphologyQinghai yakrumen
collection DOAJ
language English
format Article
sources DOAJ
author Bao A. Ding
Shuang Q. Ma
Zong R. Li
Xi L. Li
Stephen R. Madigosky
spellingShingle Bao A. Ding
Shuang Q. Ma
Zong R. Li
Xi L. Li
Stephen R. Madigosky
Seasonal changes of rumen and intestine morphology of the Qinghai yak (Bos grunniens)
Veterinary World
green grass
intestine
morphology
Qinghai yak
rumen
author_facet Bao A. Ding
Shuang Q. Ma
Zong R. Li
Xi L. Li
Stephen R. Madigosky
author_sort Bao A. Ding
title Seasonal changes of rumen and intestine morphology of the Qinghai yak (Bos grunniens)
title_short Seasonal changes of rumen and intestine morphology of the Qinghai yak (Bos grunniens)
title_full Seasonal changes of rumen and intestine morphology of the Qinghai yak (Bos grunniens)
title_fullStr Seasonal changes of rumen and intestine morphology of the Qinghai yak (Bos grunniens)
title_full_unstemmed Seasonal changes of rumen and intestine morphology of the Qinghai yak (Bos grunniens)
title_sort seasonal changes of rumen and intestine morphology of the qinghai yak (bos grunniens)
publisher Veterinary World
series Veterinary World
issn 0972-8988
2231-0916
publishDate 2018-08-01
description Aim: The aim of the current study was to investigate the effects of seasonal changes in grass quality on the ruminal and intestinal morphology of male Qinghai yaks. Materials and Methods: A total of four male yaks with the same age of 4 years old from each season (summer and winter) were randomly selected and slaughtered to determine the effect of different season on intestinal morphology of yak in the Qinghai-Tibetan Plateau. Results: The histological analysis shows that male yak has the longer and wider papillae in rumen in green season. The height of villi in duodenum and jejunum was significantly higher in green season, and the width of villi on duodenum, jejunum, ileum, and rectum was significantly wider in green season. Surface area of villi and crypt depth in duodenum, jejunum, and ileum was significantly larger and deeper in green season. Submucosa thickness of duodenum, jejunum, ileum, and rectum was significantly thicker in green season. The muscular thickness of jejunum, cecum, and rectum was significantly thicker in green season. Conclusion: According to this research, we found that the seasonal changes of ruminal and intestinal morphology of yak showed different length and width papillae, villi, crypt, and submucosa. This fact was confirmed the functional advantages resulting from the ability to successfully adapt to a dry climate and diets, flat, open, and cold grassland may allow yak to overcome both water shortage and energy deficiency in winter.
topic green grass
intestine
morphology
Qinghai yak
rumen
url http://www.veterinaryworld.org/Vol.11/August-2018/17.pdf
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