Comparison Of Energy Metabolism Between Syrmaticus Humiae And Syrmaticus Ellioti In Captivity

Metabolism is one of basical character of creature, going with energy flowing and information communion in the couse of substance metabolism. Metabolism is a necessarily tache in life process, as well as important character of life history, but physiolgy adjustive mechanism of metabolic income and expenses decides mode which animal energy utilizes and diversity wich character of life history. Syrmaticus humiae and Syrmaticus ellioti are vulnerable birds to Syrmaticus, Phasianidae, Galliformes, are conduceted in Cenwanglaoshan Nature Reserve, and Syrmaticus ellioti is the endangered species only natived in China. On the one hand, we study and analyze the metabolism and thermoregulation in two species of pheasants in order to understander the relations among the ennergy demand, adaptive change and the traits of life-history. On the other hand, Comparison of energy metabolism in the different days old between Syrmaticus humiae and Syrmaticus ellioti, by the numbers helping to know the birds which Syrmaticus capitalize foods as well as affording useful datas.Author studed the basical metabolic rate, thermal conductance and thermoregulation of Syrmaticus humiae and Syrmaticus ellioti by the ways of automatic fill water from Oct. 2005 to Sep. 2006; Author also studed the food digestibility of different days old Syrmaticus humiae and Syrmaticus ellioti by the ways of food balance in different seasons. The main results are as following:1. The thermal neutral zone of Syrmaticus humiae were 23– 30℃and their basical metabolic rate were 1. 36±0. 84 ml O2 /( g?h ), which was 97 % of the expected value based on their body weight. But The thermal neutral zone of Syrmaticus ellioti were 23– 28℃and their basical metabolic rate were 2. 06±0. 14 ml O2 (/g?h ), which was 108 % of the expected value based on their body weight. It showed, the upper critical temperature of Syrmaticus humiae was higher than Syrmaticus ellioti, but the basical metabolic rate of it was lower than Syrmaticus ellioti.2. Mean thermal conductance of the two specieds were 0. 12±0. 01 mlO2 /(g?h?℃)and 0. 17±0. 01 mlO2 / (g?h?℃), respectively, at 5– 28℃. It showed, the thermal conductance of Syrmaticus humiae was lower than Syrmaticus ellioti.3. Mean temperature of the Syrmaticus humiae and Syrmaticus ellioti were 40. 44±0. 08℃and 40. 34±0. 09℃, respectively, at 5– 35℃, the temperature characters are similar to Galliformes.4. Syrmaticus humiae and Syrmaticus ellioti had high body temperature, thermal conductance, and uppercritical temperature, low basical metabolic rate and realtively wide thermal neutral zones.5. The regression relation between environment temperature and energy metabolism of 3-4 years old of Syrmaticus humiae and Syrmaticus ellioti were Y = 430. 976– 7. 461T, Y = 457. 603– 6. 593T, respectively, in four season; food digestibility were 86. 77±0. 54 %, 85. 44±0. 54 %, respectively. It concluded, with temperature declining 1 oC, mean of energy metabolism of 3-4 years old of Syrmaticus humiae and Syrmaticus ellioti were increased 7. 461 kJ and 6. 593 kJ, respectively. the food digestibility of Syrmaticus humiae was higher than Syrmaticus ellioti.6. The regression relation between environment temperature and energy metabolism of 150 days old of Syrmaticus humiae and Syrmaticus ellioti were Y = 557. 771– 8. 905T, Y = 489. 569– 7. 248T, respectively, in four season; food digestibility were 85. 26±0. 40 %,84. 14±0. 55 %, respectively. It concluded, with temperature declining 1 oC, mean of energy metabolism of 150 days old of Syrmaticus humiae and Syrmaticus ellioti were increased 8. 905 kJ and 7. 248 kJ respectively. the food digestibility of Syrmaticus humiae was higher than Syrmaticus ellioti.7. In the same temperature, the energy metabolism of 3 years old of Syrmaticus humiae was lower than 150 days old of Syrmaticus humiae, but food digestibility was higher than it; as well as, the energy metabolism of 3 years old of Syrmaticus ellioti was lower than 150 days old of Syrmaticus ellioti, but food digestibility was higher than it.