Effects of whole-plant barley silage and pellet on lactating performance of dairy cows and ruminal VFA pattern in lambs
1987
Kim, J.S. | Lee, H.J. | Kim, K.G. | Cho, Y.Y. | Chee, S.H. (National Animal Breeding Inst., Songhwan (Korea R.)) | Ha, J.K. (Seoul National Univ., Suwon (Korea R.). Coll. of Agriculture)
shThe current study was undertaken to determine the feeding value of the whole-plant barley silage harvested at dough stage (BDS), barley silage harvested at ripening stage (BRS) and barley pellet (BP) as roughage source for milking cows compared with corn silage (CS) and hay. Sixteen lactating cows (613.8kg) producing 21.3kg of milk daily were alloted into four treatments. Digestibility of various nutrients contained in three silages and one pellet, volatile fatty acid (VFA) concentration in rumen fluid after feeding these silages and pellet were investigated using twelve corriedale rams. Milk production was significantly (p0.05) higher in BP group (21.24kg) and BDS group (19.48kg) than CS group (17.37kg) and BRS group (17.80kg). There was no significant effects of diet on milk fat, but milk protein content was significantly higher (p0.05) in CS group and BRS group than BP group and BDS group. Lactose content was significantly increased (P0.05) when CS was fed compared with BDS group. Differences in feed intake between CS group and the other groups were not signifi
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