Effects of moisture content or particle size on the in situ degradability of maize silage and alfalfa haylage in lactating dairy cows
A study using four Holstein cows with ruminal cannulas was conducted to evaluate the degradability of different moisture content or particle size of maize silage and alfalfa haylage. The maize silage (MS; 20-mm length) and alfalfa haylage (AH; 40-mm length) samples were wet (wet maize silage, MSW; w...
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KeAi Communications Co., Ltd.
2016-09-01
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doaj-2f098eb6337b4b5cae8ffc6224e04b7a2021-02-02T06:06:12ZengKeAi Communications Co., Ltd.Animal Nutrition2405-65452016-09-012324925210.1016/j.aninu.2016.05.002Effects of moisture content or particle size on the in situ degradability of maize silage and alfalfa haylage in lactating dairy cowsYang ZouShuangzhao DongYun DuShengli LiYajing WangZhijun CaoA study using four Holstein cows with ruminal cannulas was conducted to evaluate the degradability of different moisture content or particle size of maize silage and alfalfa haylage. The maize silage (MS; 20-mm length) and alfalfa haylage (AH; 40-mm length) samples were wet (wet maize silage, MSW; wet alfalfa haylage, AHW), dried (dried maize silage, MSD; dried alfalfa haylage, AHD), or ground to pass through a 2.5-mm screen (dried ground maize silage, MSG; dried ground alfalfa haylage, AHG). Samples were incubated in the rumen for 2, 6, 12, 24, 36, 48, and 72 h. Cows were fed ad libitum and allowed free access to water. High moisture content treatment of MSW expressed a lower rinsing NDF and ADF degradability at 2 h (P < 0.05) compared with dried samples (MSD and MSG). Different moisture content and particle size had a significant impact (P < 0.05) on the NDF degradability at 72 h, ADF degradability at 36, 48, and 72 h, and ruminally degradable ADF. All of the highest values were observed in small particle size and low moisture content AHG treatment. Based on this study, sample processing, such as drying and grinding, should be considered when evaluating nutritive values of forages.http://www.sciencedirect.com/science/article/pii/S2405654516300828Alfalfa haylageDegradabilityLactating cowsMaize silage |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yang Zou Shuangzhao Dong Yun Du Shengli Li Yajing Wang Zhijun Cao |
spellingShingle |
Yang Zou Shuangzhao Dong Yun Du Shengli Li Yajing Wang Zhijun Cao Effects of moisture content or particle size on the in situ degradability of maize silage and alfalfa haylage in lactating dairy cows Animal Nutrition Alfalfa haylage Degradability Lactating cows Maize silage |
author_facet |
Yang Zou Shuangzhao Dong Yun Du Shengli Li Yajing Wang Zhijun Cao |
author_sort |
Yang Zou |
title |
Effects of moisture content or particle size on the in situ degradability of maize silage and alfalfa haylage in lactating dairy cows |
title_short |
Effects of moisture content or particle size on the in situ degradability of maize silage and alfalfa haylage in lactating dairy cows |
title_full |
Effects of moisture content or particle size on the in situ degradability of maize silage and alfalfa haylage in lactating dairy cows |
title_fullStr |
Effects of moisture content or particle size on the in situ degradability of maize silage and alfalfa haylage in lactating dairy cows |
title_full_unstemmed |
Effects of moisture content or particle size on the in situ degradability of maize silage and alfalfa haylage in lactating dairy cows |
title_sort |
effects of moisture content or particle size on the in situ degradability of maize silage and alfalfa haylage in lactating dairy cows |
publisher |
KeAi Communications Co., Ltd. |
series |
Animal Nutrition |
issn |
2405-6545 |
publishDate |
2016-09-01 |
description |
A study using four Holstein cows with ruminal cannulas was conducted to evaluate the degradability of different moisture content or particle size of maize silage and alfalfa haylage. The maize silage (MS; 20-mm length) and alfalfa haylage (AH; 40-mm length) samples were wet (wet maize silage, MSW; wet alfalfa haylage, AHW), dried (dried maize silage, MSD; dried alfalfa haylage, AHD), or ground to pass through a 2.5-mm screen (dried ground maize silage, MSG; dried ground alfalfa haylage, AHG). Samples were incubated in the rumen for 2, 6, 12, 24, 36, 48, and 72 h. Cows were fed ad libitum and allowed free access to water. High moisture content treatment of MSW expressed a lower rinsing NDF and ADF degradability at 2 h (P < 0.05) compared with dried samples (MSD and MSG). Different moisture content and particle size had a significant impact (P < 0.05) on the NDF degradability at 72 h, ADF degradability at 36, 48, and 72 h, and ruminally degradable ADF. All of the highest values were observed in small particle size and low moisture content AHG treatment. Based on this study, sample processing, such as drying and grinding, should be considered when evaluating nutritive values of forages. |
topic |
Alfalfa haylage Degradability Lactating cows Maize silage |
url |
http://www.sciencedirect.com/science/article/pii/S2405654516300828 |
work_keys_str_mv |
AT yangzou effectsofmoisturecontentorparticlesizeontheinsitudegradabilityofmaizesilageandalfalfahaylageinlactatingdairycows AT shuangzhaodong effectsofmoisturecontentorparticlesizeontheinsitudegradabilityofmaizesilageandalfalfahaylageinlactatingdairycows AT yundu effectsofmoisturecontentorparticlesizeontheinsitudegradabilityofmaizesilageandalfalfahaylageinlactatingdairycows AT shenglili effectsofmoisturecontentorparticlesizeontheinsitudegradabilityofmaizesilageandalfalfahaylageinlactatingdairycows AT yajingwang effectsofmoisturecontentorparticlesizeontheinsitudegradabilityofmaizesilageandalfalfahaylageinlactatingdairycows AT zhijuncao effectsofmoisturecontentorparticlesizeontheinsitudegradabilityofmaizesilageandalfalfahaylageinlactatingdairycows |
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