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Showing 1 to 6 of 6 for “"Holstein steer"”.
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The effects of marginal zinc deficiency on biochemical and physiological parameters in beef heifer and Holstein steer calves
To view the abstract, please see the full text of the document.
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Movement of plasma free, erythrocyte free, peptide and serum protein amino acids across the gastrointestinal tract and liver of calves
… a "steady state" and fasting metabolism. Six Holstein steer calves (136 kg) surgically equipped with cannulae in the aorta, portal vein and hepatic vein were maintained under constant light and fed a natural diet as 24 hourly meals per day. Blood was obtained simultaneously from all cannulae …
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In vivo and modeling approaches to improve prediction of phosphorus availability in ruminants
… P absorption was evaluated in eight growing Holstein steers fitted with permanent duodenal and ileal cannulas. Diets varying in P content (0.15%, 0.27%, 0.36% and 0.45%, DM basis) were fed , and increasing P intake increased the quantity of P absorbed from the small intestine linearly without …
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FUNCTIONAL ADAPTATION OF THE RUMINAL EPITHELIUM
… to changes in surface area. Twenty-five weaned Holstein steer calves were blocked by body weight and randomly assigned to either the control diet (CON; 91.5% hay and 8.5% vitamin/mineral supplement) or a moderately fermentable diet (50% hay; 41.5% barley grain, and 8.5% vitamin/mineral …
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Transport and exchange of amino acids from plasma, erythrocytes, peptides and serum proteins across the hindlimb of calves fed soy or urea purified diets
… across the hindlimbs were determined on growing Holstein steer calves (130 kg) fed purified diets containing scy protein or urea as the sole source of dietary nitrogen. Animals were fed at hourly intervals in a constantly lighted environment in order to achieve near ‘steady-state’ metabolic …