HADDAD S G.Associative effects of supplementing barley straw diets with alfalfa hay on rumen environment and nutrient intake and digestibility for ewes[J].Animal Feed Science and Technology,2000,87(3/4):163-171.
[4]
PRETON T R.Associated effects and interactions among feed ingredients[C]//SANSOUCY R,PRESTON T R,LENG R A.Proceedings of the FAO expert consultation on the substitution of imported concentrate feeds in animal production systems in developing countries.Bangkok:FAO Regional Office for Asia and the Pacific,1987:142-146.
YANG H J,TAMMINGA S,WILLIAMS B A,et al.In vitro gas and volatile fatty acids production profiles of barley and maize and their soluble and washout fractions after feed processing[J].Animal Feed Science and Technology,2005,120(1/2):125-140.
[11]
WANG M Z,WANG H R,LI G X,et al.Effects of limiting amino acids on rumen fermentation and microbial community in vitro[J].Agricultural Sciences in China,2008,7(12):1524-1531.
[12]
KHORASANI G R,OKINE E K,KENNELLY J J.Forage source alters nutrient supply to the intestine without influencing milk yield[J].Journal of Dairy Science,1996,79(5):862-872.
MENKE K H,STEINGASS H.Estimation of the energetic feed value obtained from chemical analysis and in vitro gas production using rumen fluid[J].Animal Research and Development,1988,28:7-55.
