ELIMAN M E,ФRSKO E R.Determination of rate of outflow of protein supplements from the rumen by measuring the rate of excretion of chromium treated,protein supplements and PEG in feces[J].Animal Production,1981,32:386.
COOMBE J B,DINUIS D A,WHEELER W E.Effect of alkali treatment on intake and digestion of barley straw by beef steers[J].Journal of Animal Science,1979,49(1):169-176.
AIKMAN P C,REYNOLDS C K,BEEVER D E.Diet digestibility,rate of passage,and eating and rumination behavior of Jersey and Holstein cows[J].Journal of Dairy Science,2007,91(3):1103-1114.
[12]
ROBINSON P H,TAMMINGA S,VAN VUURAN A M.Influence of declining level of feed intake and varying proportion of starch in the concentrate on rumen ingesta quantity,composition and kinetics of ingesta turnover in dairy cows[J].Livestock Production Science,1987,17:37-62.
[13]
TAMMINGA S,ROBINSON P H,VOGT M,et al.Rumen ingesta kinetics of cell wall components in dairy cows[J].Animal Feed Science and Technology,1989,25(1/2):89-98.
[14]
BOSCH M W,LAMMERS-WEINHOVEN S C W,BANGMA G A,et al.Influence of stage of maturity of grass silages on digestion processes in dairy cows.2.Rumen contents,passage rates,distribution of rumen and faecal particles and mastication activity[J].Livestock Production Science,1992,32(3):265-281.
[15]
COLUCCI P E,MACLEOD G K,GROVUM W L,et al.Digestia kinetics in sheep and cattle fed diets with different forage to concentrate ratios at high and low intakes[J].Journal of Dairy Science,1990,73(8):2143-2156.
[16]
ULYATT M J,BALDWIN R L,KOONG L J.The basis of nutritive value-a modelling approach[J].Proceedings of the New Zealand Society of Animal Production,1976,36:140-149.