Effects Of Different Nutritional Levels On Growth Performance And Respiratory Entropy Of Jilin Luhua Chicken

Jilin Luhua chicken Health male and female chicks were freshmen as the test animal through this experiment from Jilin Luhua chicken day old chicks began feeding,in the basic guarantee conditions for the nutritional requirements,feed group set six different groups of eggs can be compared,divided into four stages of continuous feeding until 18 weeks of age end.During the period,through the measurement of the male and female weight and tibia length data,compared with male and female growth curve analysis of growth inflection point,then made the scatter week age and weight,age and shank length,obtained the regression equation and the mathematical expectation of the R2 value,correlation analysis between week age and body weight,age and length of tibia the measurement and calculation of the average daily gain,average daily feed intake and feed weight ratio of feed consumption.To the end of the 18 weeks after the test,slaughter,for live weight,dressing percentage,semi eviscerated rate,eviscerated rate,breast muscle rate,leg muscle rate and abdominal fat rate of a total of seven indicators were compared with significant difference analysis.For each group of male and female chickens for meat quality analysis,comparison: after 40 min pH 24 h value,the pH,water loss rate,water loss rate and the rate of cooked meat,significant difference.During the feeding trial period,respiratory quotient is divided into four stages of Jilin Luhua chicken at different growth stages in the fasting metabolism under the condition of digestion and metabolism conditions(RQ value)of the characteristics,and then determine the cell level at different growth stages on energy metabolism.