Abstract
ABSTRACT The excellence of modern broiler production is based on the genetic improvement of broiler strains for high growth rate and high egg production, associated with technological developments in nutrition, management, and health. Over the last decades, the clinical biochemistry of broilers has been studied to determine serum biochemical component values; however, there are still many knowledge gaps on factors that determine changes in these values. In this study, the serum lipid and protein profiles of 4-week-old male and female Cobb broiler breeders were evaluated. Blood samples were collected on a commercial farm located in the city of Uberlândia, MG, Brazil. The following parameters were evaluated: total protein, albumin, globulin, albumin to globulin ratio (A/V), uric acid, urea, cholesterol, and triglyceride levels using an automatic analyzer. The results showed sex-specific biochemical patterns for most blood parameters evaluated. Moreover, the obtained values were different from those obtained in many published studies with broilers and commercial layers, stressing the need to develop further studies with chickens of different ages.
Highlights
The Brazilian poultry industry has significantly developed in recent years, and today is one of the most important economic activities in that country
Its outstanding productivity is based on recent progresses in poultry production, which is today characterized by high competitiveness and advanced technological standards (Silva, 2000)
The aim of this study was to determine the profile of serum proteins, lipids, and metabolites of Cobb broiler breeders, so that it could be used as a benchmark for a comparative analysis between males and females in a commercial breeding system, at the age of four weeks
Summary
The Brazilian poultry industry has significantly developed in recent years, and today is one of the most important economic activities in that country. In order to maximize the production potential of poultry, body functions need to be in perfect balance, known as homeostasis. In this context, the knowledge of the levels of some blood parameters provides important information to determine body balance status, reflecting the requirements of metabolic processes. It is an important tool, as some metabolic disorders are difficult to detect only by clinical signs (Andreasen et al, 1996) It can assist the monitoring of poultry health, the diagnosis and treatment of diseases, and to assess their health status (Schmidt et al, 2007)
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