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231224s2015 xx |||||o 00| ||eng c |
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|a 10.5713/ajas.15.0419
|2 doi
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|a eng
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| 100 |
1 |
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|a Chen, G J
|e verfasserin
|4 aut
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| 245 |
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|a Effects of Forage:Concentrate Ratio on Growth Performance, Ruminal Fermentation and Blood Metabolites in Housing-feeding Yaks
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 20.11.2015
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|a Date Revised 30.09.2020
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a The objective of this study was to determine the effect of forage: concentrate ratio (F:C) on growth performance, ruminal fermentation and blood metabolites of housing-feeding yaks. Thirty-two Maiwa male yaks (initial body weight = 207.99±3.31 kg) were randomly assigned to four dietary treatments (8 yaks per treatment). Experimental diets were: A, B, C, D which contained 70:30, 60:40, 50:50 and 40:60 F:C ratios, respectively. Dry matter intake and average daily gain in yaks fed the C and D diets were greater (p<0.05) than yaks fed the A and B diets. No differences were found in ruminal NH3-N, total volatile fatty acids, acetate, butyrate, valerate, and isovalerate concentrations. The propionate concentration was increased (p<0.05) in the C and D groups compared with the A and B diets. In contrast, the acetate to propionate ratio was decreased and was lowest (p<0.05) in the C group relative to the A and B diets, but was similar with the D group. For blood metabolites, no differences were found in serum concentrations of urea-N, albumin, triglyceride, cholesterol, low density lipoprotein, alanine aminotransferase, and aspartate aminotransferase (p>0.05) among treatments. Treatment C had a higher concentration of total protein and high density lipoprotein (p<0.05) than A and B groups. In addition, there was a trend that the globulin concentration of A group was lower than other treatments (p = 0.079). Results from this study suggest that increasing the level of concentrate from 30% to 50% exerted a positive effect on growth performance, rumen fermentation and blood metabolites in yaks
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|a Journal Article
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|a Blood Metabolites
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| 650 |
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|a Forage:Concentrate Ratio
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| 650 |
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|a Growth Performance
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| 650 |
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4 |
|a Ruminal Fermentation
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| 650 |
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4 |
|a Yak
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| 700 |
1 |
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|a Song, S D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, B X
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Z F
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Peng, Z L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guo, C H
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhong, J C
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Y
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Asian-Australasian journal of animal sciences
|d 1998
|g 28(2015), 12 vom: 02. Dez., Seite 1736-41
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|g volume:28
|g year:2015
|g number:12
|g day:02
|g month:12
|g pages:1736-41
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|u http://dx.doi.org/10.5713/ajas.15.0419
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