Effect of processing whole cottonseed on nutrient digestibility and ruminal fermentation in dairy cows
Four ruminally cannulated Holstein cows were used in a 4 × 4 Latin square design to determine the effect of feeding linted, delinted and extruded linted whole cottonseed (WCS) on nutrient digestibility and ruminal fermentation. Result showed that crude protein digestibility was lower in linted and delinted WCS treatments than control and extruded linted WCS treatment. Cows fed extruded delinted WCS had the highest digestibility of neutral detergent fibre compared with those fed the other diets. The inclusion of processing WCS did not alter ruminal pH and ruminal total and molar proportion of volatile fatty acids, however, feeding delinted WCS reduced the ruminal ammonia nitrogen concentration and acetic:propionic acid ratio.
cottonseed processing nutrient digestibility ruminal fermentation dairy cows
P.Chen P.Ji Z.J.Cao S.L.Li
State Key Laboratory of Animal Nutrition, College of Animal Science & Technology, China Agricultural University Beijing 100094, PR.China
国际会议
The 7tb International Symposium on the Nutrition of Herbivores(ISNH-7)(第七届国际草食动物营养研讨会)
北京
英文
1037-1042
2007-09-16（万方平台首次上网日期，不代表论文的发表时间）