Molecular Nutrition

Effects of Stipa capillata Linn. with Different Processing Methods on Intake and Digestion of Dry Matter and Rumen Environment of Sheep

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  • Key Laboratory of Grassland Resources of Ministry of Education, College of Grassland Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010019, China

Received date: 2016-11-11

  Online published: 2017-05-13

Abstract

This research aims to study effects of Stipa capillata Linn. with different processing methods on intake and digestion of dry matter (DM) and rumen environment of sheep. Forty-eight Ujimqin sheep wethers with similar body weight [(45±2) kg] and age (1.5 to 2.0 years of age) fitted with permanent rumen fistula were randomly divided into 4 groups, and each group had twelve sheep. The effects of four processing methods of Stipa capillata Linn. on DM intake and apparent digestibility, and pH, total nitrogen, ammonia nitrogen, total available nitrogen, volatile fatty acid concentrations in rumen fluid were determined. The pre-trial lasted for 10 d, and the trial lasted for 7 d. The results showed as follows: 1) DM intake and apparent digestibility of Stipa capillata Linn. particles were significantly higher than the other groups(P<0.05). 2) After feeding for 1 h, rumen fluid of sheep fed Stipa capillata Linn. particles had a significantly decreased pH (P<0.05), and increased concentrations of total nitrogen, ammonia nitrogen and total available nitrogen. 3) Total volatile fatty acids concentration of Stipa capillata Linn. particles was significantly higher than that of Stipa capillata Linn. hay and Stipa capillata Linn. grass meal (P<0.05). From the research, it can be concluded that the DM intake and apparent digestibility, and ruminal fermentation parameters of sheep fed Stipa capillata Linn. particles were better, which is the optimal shape to feed sheep.

Cite this article

LI Changchun, FAN Wenqiang, SUN Lin, Gegentu, CHENG Qiming, JIA Yushan . Effects of Stipa capillata Linn. with Different Processing Methods on Intake and Digestion of Dry Matter and Rumen Environment of Sheep[J]. Chinese Journal of Animal Nutrition, 2017 , 29(5) : 1560 -1566 . DOI: 10.3969/j.issn.1006-267x.2017.05.014

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