Integrating dairy and beef production offers opportunities to reduce greenhouse gas (GHG) emissions of production, which is dominated by related maintenance the breeding cow. This study aims quantify GHG reduction potential New Zealand (NZ) sector when replacing cows their calves with animals. To this end, we combined a cattle herd model NZ emission calculations production. We computed (to farm...

Each year Shiga toxin-producing Escherichia coli (STEC) are responsible for 2.8 million acute illnesses around the world and > 250,000 cases in the US. Lowering the prevalence of this pathogen in animal reservoirs has the potential to reduce STEC outbreaks in humans by controlling its entrance into the food chain. However, factors that modulate the colonization and persistence of STEC in beef c...

Milk production is a primary factor controlling weaning weight of beef calves. The purpose of this experiment was to develop a practical and reliable on-farm method of estimating milk production and to relate estimates of milk production and milk composition to preweaning weight gain of calves. A second objective was to relate milk production to postpartum ovarian activity. Milk production of s...

Regucalcin (RGN) is a mammalian Ca2+-binding protein that plays an important role in intracellular Ca2+ homeostasis. Recently, RGN has been identified as a target gene for sex steroid hormones in the prostate glands and testis of rats and humans, but no studies have focused on RGN expression in bovine tissues. Thus, in the present study, we examined RGN mRNA and protein expression in the differ...

According to the American Heritage Dictionary, to precondition is to condition, train, or accustom in advance. There is no standardized definition for this term as it applies to beef calves prior to, during, and/or after the weaning and shipping period. However, preconditioning is generally used to indicate management practices implemented around the time of weaning that are intended to optimiz...

Concerns are growing over the impact of livestock farming on environment and public health. The livestock industry is faced with the double constraint of limiting its use of natural resources and antimicrobials while ensuring its economic sustainability. In this context, reliable methods are needed to evaluate the effect of the prevention of endemic animal diseases on the productivity of livest...

Bovine respiratory disease (BRD) continues to greatly affect beef, dairy, and veal production systems. Vaccination against the bacteria involved is common, yet questions remain regarding efficacy. The purpose of this review was evaluate evidence for effects vaccinating United States or Canadian calves Mannheimia haemolytica, Pasteurella multocida, Histophilus somni on BRD-related morbidity, mor...

Upazila Livestock Office, Chirirbandar, Dinajpur, Bangladesh A beef breed development project was carried out in the Department of Livestock Services (DLS) in 2009 in selected areas of Bangladesh. Under this project, semen of Brahman bulls were imported from the USA and used to inseminate indigenous cows to produce graded calves. The present study was undertaken to select graded Brahman bulls o...

Objective: The objective of our experiment was to evaluate the effects bunk allotment on performance growing beef calves during a 58-day receiving period and investigate possible residual bunk-space subsequent growth 90-day grazing season.