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231224s2013 xx |||||o 00| ||eng c |
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|a 10.5713/ajas.2012.12607
|2 doi
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|a pubmed24n0801.xml
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
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|a Wanapat, M
|e verfasserin
|4 aut
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|a Effect of carbohydrate sources and levels of cotton seed meal in concentrate on feed intake, nutrient digestibility, rumen fermentation and microbial protein synthesis in young dairy bulls
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|c 2013
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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 22.07.2014
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|a Date Revised 17.03.2022
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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 investigate the effect of levels of cottonseed meal with various carbohydrate sources in concentrate on feed intake, nutrient digestibility, rumen fermentation and microbial protein synthesis in dairy bulls. Four, 6 months old dairy bulls were randomly assigned to receive four dietary treatments according to a 2×2 factorial arrangement in a 4×4 Latin square design. Factor A was carbohydrate source; cassava chip (CC) and cassava chip+rice bran in the ratio of 3:1 (CR3:1), and factor B was cotton seed meal levels in the concentrate; 109 g CP/kg (LCM) and 328 g CP/kg (HCM) at similar overall CP levels (490 g CP/kg). Bulls received urea-lime treated rice straw ad libitum and were supplemented with 10 g of concentrate/kg BW. It was found that carbohydrate source and level of cotton seed meal did not have significant effects on ruminal pH, ammonia nitrogen concentration, microbial protein synthesis or feed intake. Animals which received CC showed significantly higher BUN concentration, ruminal propionic acid and butyric acid proportions, while dry matter, organic matter digestibility, populations of total viable bacteria and proteolytic bacteria were lower than those in the CR3:1 treatment. The concentration of total volatile fatty acids was higher in HCM than LCM treatments, while the concentration of butyric acid was higher in LCM than HCM treatments. The population of proteolytic bacteria with the LCM treatments was higher than the HCM treatments; however other bacteria groups were similar among the different levels of cotton seed meal. Bulls which received LCM had higher protein digestibility than those receiving HCM. Therefore, using high levels of cassava chip and cotton seed meal might positively impact on energy and nitrogen balance for the microbial population in the rumen of the young dairy bull
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|a Journal Article
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|a Carbohydrate Source
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|a Cotton Seed Meal
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|a Microbial Population
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| 650 |
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|a Rumen Fermentation
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| 650 |
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|a Young Dairy Bull
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1 |
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|a Anantasook, N
|e verfasserin
|4 aut
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|a Rowlinson, P
|e verfasserin
|4 aut
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|a Pilajun, R
|e verfasserin
|4 aut
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| 700 |
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|a Gunun, P
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Asian-Australasian journal of animal sciences
|d 1998
|g 26(2013), 4 vom: 24. Apr., Seite 529-36
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|x 1011-2367
|7 nnns
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| 773 |
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|g volume:26
|g year:2013
|g number:4
|g day:24
|g month:04
|g pages:529-36
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|u http://dx.doi.org/10.5713/ajas.2012.12607
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