Influence of dietary magnesium level on metabolic and growth-performance responses of feedlot cattle to laidlomycin propionate.
作者： R A Zinn , Y Shen , C F Adam , M Tamayo , J Rosalez
关键词: Feedlot 、 Internal medicine 、 Metabolism 、 Biology 、 Magnesium level 、 Magnesium 、 Animal science 、 Feedlot cattle 、 Dietary Magnesium 、 Endocrinology 、 Laidlomycin propionate 、 Digestion
摘要: A metabolism trial and a growth-performance were conducted to evaluate the interaction of dietary magnesium level (.18 vs .32%) laidlomycin propionate (LP) (0 11 ppm, airdry basis) on utilization high-energy finishing diet by feedlot steers. There no treatment effects (P > .10) ruminal total tract digestion OM ADF. However, there was an site extent digestion. Magnesium absorption decreased with increased (11.6%, P or LP plasma concentrations. Plasma calcium concentrations supplemental (15.2%, < .05) (16.0%, .01). We conclude that levels modulate metabolic performance responses steers LP.
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