梅花鹿甲烷能代谢规律的研究

本文应用ＫＢ－１型呼吸测热装置，结合消化、代谢试验，对梅花鹿（Ｃｅｒｖｕｓｎｉｐｐｏｎ）甲烷能代谢规律进行了研究。结果表明，梅花鹿甲烷能的产生量随其采食量的增加而增加；也随着果食后时间的推移而减少，而且减少的幅度又随采食量的增加而下降；甲烷能的产生量分别占总能食入量、消化能食入量和体增热的６．６１％、８．８３％和１０．８８％；甲烷能的产生量随着日粮蛋白质水平的提高而降低，日粮蛋白质水平每提高１个百分点，甲烷能产生量就降低５８．５８ｋＪ／ｄ；分别以总能食入量（ＧＥＩ）和干物质食入量（ＤＭＩ）为自变量所建立的甲烷能（ＣＨ４Ｅ）估计分别为：ＣＨ４Ｅ（ｋＪ／ｄ）＝０．０７ＣＥＪ（ｋＪ／ｄ）－１０１．０４（ｎ＝１２，ｒ＝０．９４４，Ｐ＜０．０１）ＣＨ４Ｅ（ｋＪ／ｄ）＝９８．７８＋１．０５ＤＭＩ（ｇ／ｄ）（ｎ＝１２，ｒ＝０．９４２，Ｐ＜０．０１）

STUDIES ON THE METABOLIC RULE OF METHANE ENERGY(CH_4E)OF SIKA DEER

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 10.88% of gross energy intake(GEI),digestible energy intake(DEI)and reserve energy(RE),respectively.Inaddition,the CH4E production of sika deer was decreased with improvement of the dietary protein levels.When the dietary protein levels were increased by 1%,the amounts of CH4E production could be reduced by 58.58 kJ per day.The relations between CH4E and gross enery intake(GEI)or dry matter intake (DMI) was expressed by the following equations.CH4E (kJ/d)=0.07GEI(kJ/d)-101.04(n=12,r=0.944,P<0.01)CH4E(kJ/d)=98.78-1.05DMI(g/d)(n=12,r=0.942,P<0.01)