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STUDIES ON THE ENERGY METABOLISM OF SIKA DEER AT ANTLER-GROWING PERIOD

LI Zhongkuan, GAO Xiuhua, WANG Feng, LI Hong, ZHANG Xiaoming   

  • Online:2006-06-29 Published:2008-07-07

梅花鹿生茸期能量代谢的初步研究

李忠宽, 高秀华,王峰,李红, 张晓明   

  1. 中国农业科学院特产研究所

Abstract: The energy metabolism of male sika deer at antler growing period was studied by indirect respiration calorimetric experiments and digestible metabolic trials under the different energy in take levels and the different protein in take levels . The main results were obtained as follows:
( 1) The heat p roduction (HP) and body energy retention were all increased with the increasing of gross energy intake (GE I). Energy reserves (ER ) might be deposited with efficiencies of 0.59 (Kgp ) and 0.61 (Kgf) for protein and fat, respectively. The regression equation between HP and GEI was obtained as follows:
HP (kJ/W 0.75.d) = 265.12+ 0.332GE I (kJ/W 0.75.d)
(2) The ratio of HP/GEI were lower for the 29% protein level groups during theearlier stage and later stage of antler growth (P < 0.05). There were no significant difference between different stage in HPGEI ratio when the dietfed were same protein level (P > 0.05). Both antler growth stage and dietary protein level had no significant effect on the body ER -GE I ratio ( P > 0.05 ) , The body protein energy retention (EPR ) -ER ratio of the 29% protein groups were higher than those of the 22% protein groups both the earlier stage and later stage of antler growth (P< 0.05) , but the body fat energy retention (EFR ) -ER ratio returned the other way around.

Key words: Sika deer (Cervus nippon), Antler-growing period, Energy metabolism

摘要: 通过呼吸测热试验, 结合不同能量进食水平和不同蛋白质水平条件下的消化、代谢试验,对成年梅花鹿生茸期的能量代谢规律进行了研究。结果表明: (1) 梅花鹿的产热量(HP) 和体能沉积量(RE) 均随总能食入量(GEI) 的增加而增加; 代谢能转化为体蛋白能和体脂肪能沉积的效率(Kgp 和Kgf) 分别为0.59和0.61; 产热量(HP) 与总能食入量(GEI) 的回归方程为: HP (kJ/W 0.75.d) = 265.12+ 0.332GE I (kJ/W 0.75.d)。(2) 产热量占总能食入量的百分比(HP/GEI) , 无论是在生茸期前期还是在生茸期后期, 低蛋白组(CP 为22.0% ) 均明显高于高蛋白组(CP 为29.0% ) (P < 0105), 在同一蛋白水平下生茸期前期与后期各组之间无显著差异(P > 0.05) ; 体能沉积量占总能食入量的百分比(RE/GE I) 各组之间差异均不显著(P> 0.05) ; 无论在生茸期前期还是在生茸期后期, 体蛋白能沉积量占体能沉积量的百分比(RPE/RE), 高蛋白组均高于低蛋白组(P < 0.05), 而体脂肪能沉积量占体能沉积量的百分比(RFE/RE) 则与其相反(P < 0.05)。

关键词: 梅花鹿, 生茸期, 能量代谢