[1] ENEMARK J M D.The monitoring,prevention and treatment of sub-acute ruminal acidosis (SARA):a review[J].The Veterinary Journal,2008,176:32-43.
[2] GARRET E F,NORDLUND K V,GOODGER W J,et al.A cross-sectional field study investigating the effect of periparturient dietary management on ruminal pH in early lactation dairy cows[J].Journal of Dairy Science,1997,80(1S):169.
[3] STONE W C.Effect of subclinical rumen acidosis on milk components[C]//Proceedings Cornell Nutrition Conference of Feed Manufacturers.Rochester:[s.n.],1999:40-46.
[4] DIRKSEN G.The rumen acidosis complex-recent knowledge and experiences (1):a review[J].Tierarztl Praxis,1985,13(4):501-512.
[5] ASCHENBACH J R,PENNER G B,STUMPFF F,et al.Ruminant nutrition symposium:role of fermentation acid absorption in the regulation of ruminal pH[J].Journal of Animal Science,2011,89(4):1092-107.
[6] OWENS F N,SECRIST D S,HILL W J,et al.Acidosis in cattle:a review[J].Journal of Animal Science,1998,76(1):275-286.
[7] KAY R N.The influence of saliva on digestion in ruminants[J].World Review of Nutrition and Dietetics,1966,6:292-325.
[8] ALLEN M S.Relationship between fermentation acid production in the rumen and the requirement for physically effective fiber[J].Journal of Dairy Science,1997,80(7):1447-1462.
[9] MERTENS D R.Creating a system for meeting the fiber requirements of dairy cows[J].Journal of Dairy Science,1997,80(7):1463-1481.
[10] 杨永新,王加启.反刍动物日粮物理有效中性洗涤纤维的研究进展[J].中国畜牧兽医,2011,38(4):5-10.
[11] 俞步清,梁祥焕,张骞,等.奶牛物理有效中性洗涤纤维营养研究进展[J].中国奶牛,2011(12):18-20.
[12] 王炳,申军士,叶均安,等.奶牛日粮中物理有效中性洗涤纤维作用的研究进展[J].中国畜牧杂志,2013,49(19):91-96.
[13] ZEBELI Q,ASCHENBACH J R,TAFAJ M,et al.Invited review:role of physically effective fiber and estimation of dietary fiber adequacy in high-producing dairy cattle[J].Journal of Dairy Science,2012,95(3):1041-1056.
[14] ARGYLE J L,BALDWIN R L.Modelling of rumen water kinetics and effects of rumen pH changes[J].Journal of Dairy Science,1988,71(5):1178-1188.
[15] BAILEY C B,BALCH C C.Saliva secretion and its relation to feeding in cattle.Ⅱ.The composition and rate of secretion of mixed saliva in the cow during rest[J].British Journal of Nutrition,1961,15(3):383-402.
[16] MAEKAWA M,BEAUCHEMIN K A,CHRISTENSEN D A.Effect of concentrate level and feeding management on chewing activities,saliva production,and ruminal pH of lactating dairy cows[J].Journal of Dairy Science,2002,85(5):1165-1175.
[17] CASSIDA K A,STOKES M R.Eating and resting salivation in early lactation dairy cows[J].Journal of Dairy Science,1986,69(5):1282-1292.
[18] BAILEY C B,BALCH C C.Saliva secretion and its relation to feeding in cattle.3.The rate of secretion of mixed saliva in the cow during eating,with an estimate of the magnitude of the total daily secretion of mixed saliva[J].The British Journal of Nutrition,1961,15(3):443-451.
[19] BAILEY C B,BALCH C C.Saliva secretion and its relation to feeding in cattle.Ⅰ.The composition and rate of secretion of parotid saliva in a small steer[J].The British Journal of Nutrition,1961,15:371-382.
[20] SETH O N,RAI G S,YADAV P C,et al.Effect of diet and rumination on the rate of secretion and chemical composition of parotid saliva of
Bubalus bubalis and
Bos indicus[J].Indian Journal of Animal Science,1977,44:717-724.
[21] JIANG F G,LIN X Y,YAN Z G,et al.Effect of dietary roughage level on chewing activity,ruminal pH,and saliva secretion in lactating Holstein cows[J].Journal of Dairy Science,2017,100(4):2660-2671.
[22] BEAUCHEMIN K A.Managing rumen fermentation in barley based diets:Balance between high production and acidosis[J].Advance in Dairy Technology,2000,12:109-125.
[23] BEAUCHEMIN K A,ERIKSEN L,NØRGAARD P,et al.
Short communication:salivary secretion during meals in lactating dairy cattle[J].Journal of Dairy Science,2008,91(5):2077-2081.
[24] MAEKAWA M,BEAUCHEMIN K A,CHRISTENSEN D A.Chewing activity,saliva production,and ruminal pH of primiparous and multiparous lactating dairy cows[J].Journal of Dairy Science,2002,85(5):1176-1182.
[25] BOWMAN G R,BEAUCHEMIN K A,SHELFORD J A.Fibrolytic enzymes and parity effects on feeding behavior,salivation,and ruminal pH of lactating dairy cows[J].Journal of Dairy Science,2003,86(2):565-575.
[26] BEAUCHEMIN K A,FARR B I,RODE L M,et al.Optimal neutral detergent fiber concentration of barley-based diets for lactating dairy cows[J].Journal of Dairy Science,1994,77(4):1013-1029.
[27] YANG W Z,BEAUCHEMIN K A.Increasing physically effective fiber content of dairy cow diets through forage proportion versus forage chop length:chewing and ruminal pH[J].Journal of Dairy Science,2009,92(4):1603-1615.
[28] KMICIKEWYCZ A D,HEINRICHS A J.Effect of corn silage particle size and supplemental hay on rumen pH and feed preference by dairy cows fed high-starch diets[J].Journal of Dairy Science,2015,98(1):373-385.
[29] YANG W Z,BEAUCHEMIN K A.Effects of physically effective fiber on chewing activity and rumen pH of dairy cows fed diets based on barley silage[J].Journal of Dairy Science,2006,89(1):217-228.
[30] MAULFAIR D D,HEINRICHS A J.Effects of varying forage particle size and fermentable carbohydrates on feed sorting,ruminal fermentation,and milk and component yields of dairy cows[J].Journal of Dairy Science,2013,96(5):3085-3097.
[31] MURPHY M R,ZHU J S.A comparison of methods to analyze particle size as applied to alfalfa haylage,corn silage,and concentrate mix[J].Journal of Dairy Science,1997,80(11):2932-2938.
[32] HEINRICHS A J,BUCKMASTER D R,LAMMERS B P.Processing,mixing,and particle size reduction of forages for dairy cattle[J].Journal of Animal Science,1999,77(1):180-186.
京公网安备 11010802041926号