Dante Pazzanese Duarte Lanna

• Abstract

  The conventional live weight monitoring system in beef cattle is characterized by the removal of the animals from the pens or paddocks and handling them in corrals with static weighing systems. In this process, several problems related to calibration of scales and handling of the squeeze chute, added to fluctuations in live weight that occurs throughout the day, mainly due to changes in t…

  Computational tools for automatic weighing platforms aiming the detection of nutritional and sanitary events in beef cattle, AP.R

• Abstract

  The Brazilian projections of beef production indicate intense dynamism in the coming years, especially after the approval of agonists of beta-adrenergic receptors (A²A) awarded by the MAPA in June 2012. Zilpaterol hydrochloride (CZ) is a synthetic compound belonging to the A²A group which improves feed efficiency increasing the meat production per area unit. Cattle supplemented with CZ ha…

  Effect of zilpaterol feeding duration and feedlot period on performance, carcass characteristics and meat quality of Nellore bulls fed with high concentrate diets, AP.R

• Abstract

  Brazil has the largest commercial herd in the world, which represents the largest sector of national gross agribusiness production value. Consequently, the improvement of productive efficiency of the beef sector may result in expressive economic and environmental benefits to the country. Economic benefits could be achieved by the development of monitoring systems used to evaluate the grow…

  Evaluation of beef cattle growth and composition dynamics to develop an optimal economic slaughter endpoint model, AP.R

(Only some records are available in English at this moment)

• Computational tools for automatic weighing platforms aiming the detection of nutritional and sanitary events in beef cattle, BP.TT

• Abstract

  Both, growth and models for estimation of energy and protein utilization, have been extensively studied over the years in several countries. However, the studies about the growth and the validation of these models for different regions and breeds need to be verified. In tropical regions, especially in Brazil, growth parameters and models for Growing Calves and Heifers (GCH) follow the rec…

  Evaluation and validation of the growth and estimation models for growth to dairy replacement heifers in commercial farms at tropical conditions, BP.DR

• Abstract

  Several studies conducted with molecular biology techniques have focused their hypotheses on mitochondria reporting a possible association with feed efficiency and heat production on beef cattle. In these organelles are the uncoupling protein (UCP), which functions and their interrelationships are not yet fully established. Recently, researchers found inducible adipocytes or brite (beige)…

  Relations between mitochondrial function and brite adipocytes with feed efficiency and heat production in beef cattle, BP.DR

(Only some records are available in English at this moment)

• Abstract

  Mathematical models are important tools to estimate the nutritional requirements and performance of animals, to reduce cost of production and minimize the excretion of nutrients to the environment. Very few models have been evaluated to estimate the requirements and performance of young calves in tropical condition. The objective of this project is to evaluate the National Research Counci…

  Evaluation of a model to estimate the nutritional requirements and performance of dairy calves, BE.EP.DR

• Abstract

  Brazil is the second largest beef producer and the largest exporter in the world. It represents the largest sector of Brazilian agriculture. Increasing feed efficiency can bring significant economic, social and environmental benefits to the country. Mathematical models are efficient tools to predict performance and optimum endpoints (age, weigh and composition at slaughter). These models …

  Modelling growth, body composition, optimum endpoint and feed efficiency of beef cattle, BE.PQ

• Abstract

  Brazil, with the biggest commercial herd in the world, is just now developing research on the genetics of feed efficiency. In addition, it is impossible to ignore national and international pressure for a more sustainable beef production industry less polluting production, be the Amazon, Pantanal, Cerrado biome or anywhere. Countries like Australia and Canada have already developed progra…

  Feed eficiency, residual feed intake, heat production, carcass characteristics and meat quality in a herd of half-brothers of Nellore bovines, BE.EP.PD