Recently, there has been an increased focus on developing high-energy and high-protein feeds for Hanwoo steers in Korea to reduce the fattening period and decrease production costs. The aim of this study was to investigate the effects of different starch…
The objective of this study was to evaluate the effects of various concentrations of sodium chloride (NaCl), magnesium chloride (MgCl2), and calcium chloride (CaCl2) on the growth and in vitro fermentation of cellulolytic, glycolytic, and amylolytic microorganisms from the rumen…
Dried citrus pulp (DCP) is a high-fibre by-product of the citrus industry. In total mixed ration (TMR) systems it has been shown to maintain a more stable ruminal environment, improving overall production compared with maize. The aim of the study…
Ten high-yielding cultivars of triticale obtained from a breeding group at the University of New England, harvested in 2008 and 2009, were assessed for nutrient composition and nutrient digestibility. The cultivars tested were AT528, H20, H127, H128, H157, H249, H418,…
In one experiment the effects of casein in the abomasum was compared to isonitrogenous quantities of casein or urea in the rumen. In another two experiments the effects of casein in the rumen or abomasum were compared to isocaloric quantities…
An alternative strategy for supplementing ruminants fed low-quality roughages is discussed. In this strategy, the quantity and quality of supplement are adjusted to constrain mass-loss to a limit compatible with the productive function of the animal. The limits to mass-loss…
Twelve steers fistulated in the rumen and duodenum were allocated to one of three diets and fed 80 g DM/kg W0.75/d. The diets consisted of about 80% maize meal, 11% cottonseed hulls and either 1.44% urea (Treatment A), 0.96% urea…
Different protein-energy ratios in feedlot diets may effect several combinations of amounts of amino acids and glucose available for absorption in the small intestine. In this regard, the effect of protein concentration and degradation, and energy content of the diet…
Multivariate prediction models were developed from the results of three divergent trials with multicannulated steers. Diets differed in composition and physical structure. Energy contents varied from 10 to 13 MJ ME/kg DM, starch from 20 to 62%, CP from 102…
