关键词: 梅花鹿, 甲烷能, 代谢规律, 呼吸测热装置

Abstract: The metabolic rule of methane energy (CH₄E)of sika deer was studied by indirect respiration calorimetry unit and digestible metabolic trials in four adult male sika deer.Results showed，that the amount of CH₄E Production of sika deer was raised with addition of food intake and was fallen with the lapse of time after food intakes.The amounts
of CH₄E production of sika deer was 6.61 %，8.83% and l0.88% of gross energy intake (OEZ)，digestible energy intake(DEI)and reserve energy(RE)，respectively,.Inadditton,the CH₄E production of sika deer was decreased with improvement of the dietary protein levels. When the dietary protein levels were increased by l %，the amounts of CH₄E productlon could be reduced by 58.58 kJ per day.The relations between CH ₄E and gross enery intake(GEI)or dry matter intake(DMZ)was expressed by the following equationsCH₄E (kJ／d)=0.07GEI(kJ／d) 一l01.04(n=12，r=0.944，P<0.01)
CH ₄E (kJ／d) =98.78—1.05DMI(g／d)(n=l2，r=0.942，P<0．01)

Key words: Sika deer(Cervus nippon), Methane energy, Metabolic rule, Respiration calorimetry unit