The aim of the present experiment was to determine if there was an adaptation on plasma antioxidant capacities of yak under the malnutrition （fasting treatment）. Three castrated male yaks and equal numbers of indige...The aim of the present experiment was to determine if there was an adaptation on plasma antioxidant capacities of yak under the malnutrition （fasting treatment）. Three castrated male yaks and equal numbers of indigenous male cattle and of castrated male cattleyak with mean body weight of 146 ± 5.0, 116 ±3.0 and 149 ± 5.0 kg, respectively, were used. The fasting period lasted for 6 d. Results showed that： plasma total antoxidative capacity （T-AOC） was no differences between the genotypes on the fasting 1 st, 3rd, and 6th （P 〉 0.05）, but the values were linear greater with fasting days for yak, however, it was inverse for indigenous cattle or cattle-yak; plasma xanthine oxidase （XOD） activities of indigenous cattle were less than yak＇s and cattleyak＇s on the fasting 1st and 3rd day （P 〈 0.05）, but the value of indigenous cattle was greater than yak＇s and cattleyak＇s on the fasting 6th day （P 〈 0.05）. In a conclusion, plasma antioxidant capacities indicated that yaks have evolved an ability to survive in a starvation than indigenous cattle, and their crossbred-cattleyak also has inherited some of the adaptive characteristics.展开更多
Consumer requirement evolution in time necessitates a good control on product features. The present study aims at providing a better knowledge about the different broiler body composition characteristics found in Mada...Consumer requirement evolution in time necessitates a good control on product features. The present study aims at providing a better knowledge about the different broiler body composition characteristics found in Madagascar poultry farms. Data about 8,262 heads of indigenous race or Starbro strain chickens, raised in a suburban setting have been collected. At the end of the raising cycle, measurements by individual weighing of the animal anatomical composition were performed. The results showed that chicken live weight variation depends upon liver, thigh, wing, breast and abdominal fat weight variation. Chicken age at slaughtering doesn＇t have any effect on the variable. The derived multilinear regressions make up relevant simulations on observed data due to their significance （p 〈 1‰） and present some satisfactory statistical estimate indices, especially with a steady adjusted R^2 value.展开更多
文摘The aim of the present experiment was to determine if there was an adaptation on plasma antioxidant capacities of yak under the malnutrition （fasting treatment）. Three castrated male yaks and equal numbers of indigenous male cattle and of castrated male cattleyak with mean body weight of 146 ± 5.0, 116 ±3.0 and 149 ± 5.0 kg, respectively, were used. The fasting period lasted for 6 d. Results showed that： plasma total antoxidative capacity （T-AOC） was no differences between the genotypes on the fasting 1 st, 3rd, and 6th （P 〉 0.05）, but the values were linear greater with fasting days for yak, however, it was inverse for indigenous cattle or cattle-yak; plasma xanthine oxidase （XOD） activities of indigenous cattle were less than yak＇s and cattleyak＇s on the fasting 1st and 3rd day （P 〈 0.05）, but the value of indigenous cattle was greater than yak＇s and cattleyak＇s on the fasting 6th day （P 〈 0.05）. In a conclusion, plasma antioxidant capacities indicated that yaks have evolved an ability to survive in a starvation than indigenous cattle, and their crossbred-cattleyak also has inherited some of the adaptive characteristics.
文摘Consumer requirement evolution in time necessitates a good control on product features. The present study aims at providing a better knowledge about the different broiler body composition characteristics found in Madagascar poultry farms. Data about 8,262 heads of indigenous race or Starbro strain chickens, raised in a suburban setting have been collected. At the end of the raising cycle, measurements by individual weighing of the animal anatomical composition were performed. The results showed that chicken live weight variation depends upon liver, thigh, wing, breast and abdominal fat weight variation. Chicken age at slaughtering doesn＇t have any effect on the variable. The derived multilinear regressions make up relevant simulations on observed data due to their significance （p 〈 1‰） and present some satisfactory statistical estimate indices, especially with a steady adjusted R^2 value.
