With a herd of 209 million cattle, Brazilian beef production estimate for 2023 is 10,935 million tons, representing an increase of 28.9% and accounting for 20% of the world trade. Beef cattle production is constantly evolving; however, there are extremes, ranging from simple existing farm ranges to intensive forage systems, strategic supplementation, updated health and genetic improvement progr...

the price volatility spillover effect indicates that price volatility in different markets can be mutually affected. the objective of the study is to analyze volatility price spillover effects on the vertical levels including input, wholesale and retail sale levels in the tehran beef supply chain. the multivariate generalized autoregressive conditional heteroskedastic (mvgarch) model was used b...

Beef has become a kind of important food in China because of its nutritional value perceived by consumers. With increasing consumers’ awareness and governments’ regulations on beef quality and safety, traceability is becoming a mandatory requirement in cattle/beef industry. This paper developed and evaluated a cattle/beef traceability system that integrated RFID technology with PDA and barcode ...

Reproduction is a key profit driver in beef cattle production systems around the world. However genetic evaluation for reproduction traits is generally limited or non-existent. This is likely a function of low levels of recording reproduction traits, and low heritabilities. Traditional BLUP based genetic evaluations have been used effectively in beef for generating estimated breeding values and...

There has been considerable recent interest in factor-analytic models for the analysis of genotype by environment type problems. It is shown that, compared to ‘standard’ multivariate analyses, such models can substantially reduce computational requirements for international genetic evaluation of beef cattle, fitting an animal model and treating performance in different countries as separate tra...

C ORN silage is being utilized in increased quantities in beef cattle growing and fattening rations. The research data of Hammes et al. (1964), with various ratios of corn to corn silage in fattening rations, have demonstrated that higher levels of corn silage can be justified because gains between high grain and high silage rations are similar, whereas, use of higher silage rations permits the...

Models for estimation of frame scores in Nellore beef cattle (FRAME_GMA) were developed, comparing them with frame scores estimated using equations proposed by the Beef Improvement Federation (FRAME_BIF, USA). Correlation among frame scores obtained by these two methodologies, along with the independent variables considered in the estimation models, were also studied. A data set with 12,728 ani...

Introduction Pasture forage is the most significant contributor to the trace mineral nutrition of Florida's grazing beef cattle. Sandy, loworganic-matter soils have long been linked to the production of forages with low trace mineral content. In addition, the organic soils associated with the Okeechobee basin have been associated with the production of forages high in molybdenum, an antagonist ...

Synopsis The animal factors that affect antibiotic resistance, specifically cefotaxime resistance, have yet to be studied in detail. The prevalence of cefotaxime (a third-generation cephalosporin) resistance in beef claves and adult cattle in Florida was tracked over a period of one year. The findings of this study indicate that environmental factors may influence the prevalence of cefotaxime r...

Animal health and nutrition can have significant impacts on beef cattle herds. If the nutrition, health or husbandry of the herd is compromised there will be adverse consequences with accompanying economic losses. The number one health concern in beef cattle production is respiratory disease commonly referred to as BRD or Bovine respiratory disease. The number one production concern for cow cal...