Two experimental factors (dietary treatment with or without pelleted-concentrate supplement (PCS) and sex) were investigated in crossbreed post-weaning calves to monitor their effects on performance, hematological profile, and plasma mineral concentration. Twenty-four post-weaning calves were classified according to sexually (either male or female) and randomly distributed into two dietary trea...

The objective of this study was to investigate the feeding value sheepgrass, including its chemical composition, dry matter intake, nutrient digestibility, and available energy, as well prediction equations intake (DMI), neutral detergent fiber digestibility (NDFD), (DMD), digestible energy (DE), metabolizable (ME). Two independent experiments based on a completely randomized experimental desig...

Four experiments were conducted to evaluate the effects of dried distillers grains + condensed distillers solubles (DDG+CDS) supplements on measures of performance of beef heifers, and apparent dry matter (DM), neutral detergent fiber (NDF), and crude protein (CP) digestibility of beef steers. In Exp. 1, heifers supplemented with DDG+CDS blocks (SweetPro; SP) for 42 d had lesser free-choice sup...

The aim was to estimate the genetic correlations between residual feed intake (RFI) and dry matter (DMI) with carcass finish (CF), rib eye area (REA), marbling (MAR) of Nellore cattle. Data from 7,808 animals were considered. In addition, data 2,261 females included in complete database also Estimates variance covariance components, as well heritabilities obtained by means two-character analysi...

Abstract Reliable predictions of metabolizable energy (ME) from digestible (DE) are necessary to prescribe nutrient requirements beef cattle accurately. Our objectives were add new data a previously published database and re-evaluate the relationship between DE ME describe evaluate methane prediction equations derived DE:ME relationship. The previous database, which included 87 treatment means ...

Abstract Several experts throughout the world have focused a lot of their research on rise in methane concentrations atmosphere and its causes. Cattle are livestock species that contribute most to emissions, according conducted over previous three decades. A greenhouse gas called enteric (CH 4 ) is created by microbial fermentation rumen released into through variety excretory processes. To red...

The study was designed to test the effects of feeding fish meal (FM) and specific n-3 fatty acids on milk yield and composition, dry matter intake, plasma concentrations of metabolic hormones and metabolites, and liver triglyceride accumulation in early lactating cows. From 5 to 50 d in milk (DIM), cows were fed diets that were isonitrogenous, isoenergetic, and isolipidic containing none (contr...

Abstract The aim of this study was to evaluate the effects on dry matter intake (DMI), daily gain (DG), feed efficiency (FE) and rumen fermentation including fresh alfalfa (FA) a restricted TMR diet finishing steers. Twenty steers (8 with 8-mm ruminal catheters), fed (ground corn grain, soybean meal, pasture hay, mineral-vitamin concentrate Anavrin; 65% DM, 12.8% CP, 23% NDF) were blocked by BW...

Cattle body composition is difficult to model because several factors affect the composition of the average daily gain (ADG) of growing animals. The objective of this study was to identify commercial single nucleotide polymorphism (SNP) panels that could improve the predictability of days on feed (DOF) to reach a target United States Department of Agriculture (USDA) grade given animal, diet, an...