Three experiments were conducted to evaluate management strategies designed to decrease heat stress of cattle finished during the summer. In Exp. 1, 144 Angus crossbred yearling steers were assigned to three treatments: 1) ad libitum access to feed at 0800 (ADLIB); 2) fed at 1600 with feed amount adjusted so that no feed was available at 0800 (BKMGT); and 3) fed at 1600 at 85% of predicted ad l...

In ruminants, methane (CH4) is a by-product of digestion and contributes significantly to the greenhouse gas emissions attributed to agriculture. Grazed grass is a relatively cheap and nutritious feed but herbage species and nutritional quality vary between pastures, with management, land type and season all potentially impacting on animal performance and CH4 production. The objective of this s...

Crossbred horned steers and heifers (n = 40; BW = 311.8 ± 4.7 kg) were used to determine the effect of dehorning methods on pain, cattle behavior, and wound healing. Cattle were blocked by weight and randomly assigned to 1 of 4 treatments: 1) control (CON), 2) banded using high tension elastic rubber (BAND), 3) mechanically removed (MECH), or 4) tipped (TIP). Vocalization and behavior were reco...

This study aimed to evaluate the physiological response of female beef cattle peatland microclimate stress in Central Kalimantan. used direct observation on small holder farm. Microclimate data 41 units barns and parameters were collected morning, at noon afternoon. The parameter measurements involved 215 cattle, consisting 119 Bali 96 crossbred with different stages including pregnant cows, la...

Cattle play an important role in the epidemiology of bluetongue (BT) by acting as reservoir hosts. However, the status of BT virus (BTV) in dairy cattle in Nepal is unknown. The objective of this study was to estimate the prevalence of BTV antibodies in dairy cattle in two eco-zones of Nepal, and to identify the factors associated with virus exposure. The authors conducted a cross-sectional ser...

Bali cattle is one of Indonesia's original livestock genetic resources. The 12S rRNA can be used as a marker diversity, and until now, there has been no report on cattle. study was aimed to analyze the gene mtDNA determine haplotype diversity phylogenetics in populations eastern region Indonesia. A total 95 blood samples consisted three different which were cattle, Ongole crossbred (PO) Madura ...

LIPE is an intracellular neutral lipase, which is capable of hydrolyzing a variety of esters and plays a key role in the mobilization of fatty acids from diacylglycerols. The objectives of this study were to characterize the genetic polymorphism of bovine LIPE gene and to evaluate the possible association between three SNPs in the coding regions of this gene with the fatty acid composition of m...

INTRODUCTION Interest in crossbreeding in commercial cattle herds in the latter half of the 20 century sparked a flurry of experiments characterizing breeds and breed crosses for additive and nonadditive gene effects. Analytical models for estimation of these effects naturally followed. A logical extension was to apply the methodology to estimation of genetic merit from records in populations r...