255 Effects of Ruminally-protected Lysine on Performance and Carcass Characteristics of Finishing Cattle.
نویسندگان
چکیده
منابع مشابه
Effects of Source and Level of Ruminally Protected Choline on Performance and Carcass Characteristics of Finishing Beef Steers
Previous research (Galyean et al., 1997) indicated that daily gain and feed efficiency were improved when finishing beef steers were fed graded levels of ruminally protected choline (RPC; .25, .5, and 1% of dietary DM). Responses were cubic (P < .10) in nature, with an 11% increase in daily gain and a 6.8% improvement in feed efficiency for .25% RPC vs the control diet, but no effect on gain or...
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Effects of supplemental amylase and roughage source on performance and carcass characteristics of finishing beef cattle
The use of enzymes in feedlot diets has not been evaluated extensively, and most research with high-concentrate diets has been with barley. Beauchemin et al. (1997) evaluated the addition of two enzyme mixtures that varied in the proportion of xylanase and cellulase activity to 95.1% concentrate feedlot diets based on either barley or corn. Feed efficiency for the overall finishing period was i...
متن کاملEffects of dietary level of ruminally protected choline on performance and carcass characteristics of finishing beef steers and on growth and serum metabolites in lambs.
Ruminally protected choline (RPC) was evaluated in two experiments. In Exp. 1, beef steers (n = 160; average initial BW = 350.9 kg) were fed a 90% concentrate diet with either 0, .25, .5, or 1.0% RPC (DM basis) for 112 to 140 d. Feeding .25% RPC increased ADG 11.6% compared with 0% RPC, but responses diminished with increasing RPC level (cubic response, P < .10). Daily DMI was not affected by R...
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ژورنال
عنوان ژورنال: Journal of Animal Science
سال: 2018
ISSN: 0021-8812,1525-3163
DOI: 10.1093/jas/sky404.190