The objective of this study was to determine the effects substituting barley grain with short-season, high-moisture shelled corn, and silage snaplage on ruminal fermentation site extent digestion in beef cattle fed finishing diets. Six ruminally duodenally cannulated heifers (420 ± 16.4 kg body weight) were a diet (BG), where half replaced corn (HC), or portion (SN) replicated 3 × Latin square ...

Four ruminally cannulated cows were used to compare amino acid (AA) composition of protozoal and bacterial fractions as affected by sampling time and diet. Cows were given once a day restricted feed (80% of ad libitum intake) of 7 kg DM with two successive diets. Diet HB was 65% Cocksfoot hay and 35% pelleted ground barley, and Diet H was 100% Cocksfoot hay. Samples of whole ruminal contents we...

This study investigated the effects of disodium fumarate (DF) on methane emission, ruminal fermentation and microbial abundance in goats under different forage (F) : concentrate (C) ratios and fed according to maintenance requirements. Four ruminally fistulated, castrated male goats were used in a 4 × 4 Latin square design with a 2 × 2 factorial arrangement of treatments and the main factors be...

Four Holstein steers (159 kg) surgically fitted with abomasal-infusion cannulas were used in a 4 x 4 Latin square study to test amino acid (AA) and casein (CAS) infusions on nitrogen balance and hormonal status of steers consuming vegetative wheat (Triticum aestivum L.) silage (12.3% CP). Treatments were 5-d infusions of 1) water (CONT), 2) arginine (ARG; 13.69 g/d), 3) limiting amino acids (LA...

We used four ruminally fistulated, multiparous, pregnant Holstein cows to delineate microbial adaptations in dairy cows as they experienced the transition from one lactation to the next. Diets consisted of typical far-off and close-up diets, a late lactation diet containing wet corn gluten feed (20% DM) and an alfalfa hay-corn silage based early lactation diet. Calculated NEL (Mcal/lb), measure...

Abstract While much effort has been devoted to both the characterization of ruminal fermentation dynamics and evaluation bermudagrass production, independently, there is a lack information regarding digestive kinetics using beef cattle in southern forage systems. Thus, objective our study was evaluate situ four (Cynodon dactylon [L.] Pers.) cultivars heifers consuming typical forages. (Coastal,...