Comparative study in chemical character and fatty acid compositions of masked civet’s fat and nutria’s oil

The fat production rate in adult healthy masked civet(Paguma lavata) and nutria (Myocaster coypus) oil were measured. The values of iodine, saponification and acid pH, composition of fatty acids of grease were analyzed both chemically and by apparatus. The results showed that acid pH, iodine value, saponification value, and unsaturation point are 1.887 and 0.784, 53.90 and 48.32, 98.80 and 100.23, and 60.05% and 58.85% are respectively for masked civet’s fat and nutria’s oil. Both of masked civet’s fat and nutria’s oil contain a little of Eicosatetraenoic acid (C-20∶4), which is of great significance in nutrition and metabolism for human body. The analysis results indicate that masked civet’s oil is similar to nutria’s oil in iodine value, saponification value and unsaturation point. Both masked civet’s fat and nutria’s oil are steady and have highly nutrition. They can be widely exploited and utilized in health protection and cosmetics made industry. (Responsible Editor: Chai Ruiha)     

EFFECT OF DIFFERENT DIET ON YOUNG NUTRIAS

Nutrias(MyocastorcolIPus)isonekindofvaluablefuranimals.Functionofitsfurkeep-ing-temperatllfeisgoodandit'sakinisdurable,soitsskinandfurarcoftenusedasthemateri-alsoffurcoatandleather.Nutrianleatnotonlytastesdeliciousanddelicate,butalsocontainshighprotein.Nutriacanbefedeasilyanditsfeedingcostislow.Therefore,itisverysuitabletoourcountry.TherehasbeennoreportaboutstiJdyontl1enutritiverequirementofnutriasinChina.ThistestemphasizesonthepropernutTitivercquircll1entofnutfiaandithasprovidedsol1lebasi…     

Health status of a population of nutria (Myocastor coypus) living in a protected area in Italy

Ninety trapped nutria (Myocastor coypus) from a protected area of Piedmont (Italy), including the Po river, were examined for the prevalence for lesions in major viscera, selected serum antibodies and enteric bacteria. Coccidial lesions in the liver included cholangitis, calcification and necrosis. Renal lesions were nonsuppurative interstitial nephritis and a single case of renal adenocarcinoma. The lungs had a 41.1% prevalence of nonsuppurative interstitial pneumonia. Ten of 87 sera (11.5%) had antibodies against Leptospira bratislava, 3 of 87 (3.4%) against Leptospira ichterohaemorrhagiae, 15 of 41 (36.6%) against Toxoplasma gondii, and antibodies against encephalomyocarditis virus were detected in 5 of 78 sera (6.4%). All fecal samples were negative for Salmonella, Shigella, and Pseudomonas, and growth of enterobacteriaceae was in the normal range.     

STUDY ON THE UTILIZATION OF FAT IN NUTRIA (MYOCASTOR COYPUS) CARCASS

Nutria(Myocastorcoypus)be-longstoCapromyidaeinrodentiaofmammalia-Nutriaisaherbivorousfur-bearinganimalwithsomegoodchar-acteristics:suchasdurablebeautifulfur,highfertility(onefemaleadultmayhave2o-3oyoungsintwoyears),easyraisingandlowcostetc.Itwasoriginallydistrib-utedintheareasofArgentina,ChileandsomewhereinSouthAmerica,butnowithasbeenintroducedandraisedinGermany,Po1and,Czech,Romania'Russian,Korea,Chinaandsoonforsever'altenyears.Manycolornutriashavebeenbred.InDecemberl99O,anutriafurwassol…     

Comparative Study in Chemical Character and Fatty acid Compositions of Masked Civet''''s Fat and Nutria''''s Oil

IntroductionMaskedciVet(Paguma18vata),Mammalia,Viverridae,ismainlydiStributedinShanxi,Sichuan,Tibet,Yunnanprovinces,etc..Itsmeatisdeliciousandhasspecialflavor.Itiseasytoberaisedartificially,withhighproduCtivity.Nutria(MyocasterCOypus),Rodentia,Capromyidae,originatedinArgentina,Chili,etc.insouthAmerica.Itisakindofherbivoresfur-bearer.itsartificialraisinghassuchmeritsasdurablefurandlowcostandhighproduCtivity.MaskedcivetandnutriahavehigheconomicvalueandwideprospeCtofutilization.Atpresen…     

育成前期雄性海狸鼠蛋白质代谢的研究

探讨了育成前期雄性海狸鼠饲粮蛋白质适宜水平。试验分四组，饲粮的能量和蛋白质分别为：１６２８９．１ｋＪ／ｋｇ，１４．４６％；１６４７６。９ｋＪ／ｋｇ，１８．１３％；１６７３４．２ｋＪ／ｋｇ，２０．６２％和１６３３４ｋＪ／ｋｇ，２４．１０％。对海狸鼠的体重，日粮蛋白质消化率，能量消化率，蛋白质沉积率进行了测定，结果为饲粮可消化蛋白质适宜水平为１５％￣１７％，每日可消化蛋白质与体重，日增重回归关系为：Ｄ     

海狸鼠生殖器官形态学与解剖结构观察报告

通过对海狸鼠生殖器官的位置、形态、解剖结构特点的系统详细地观察及大小重量的测定，结果表明：海狸鼠生殖器官的构造与其它哺乳动物基本相似，雄性海狸鼠的精囊腺、前列腺、尿道球腺３种腺体均成对存在，但其中的精囊腺特别发达，腺体的自然长度为７０２ｃｍ±０．４７ｃｍ（ｎ＝１４），重为５３３ｇ±０７９ｇ（ｎ＝８）；值得提出的是雌性海狸鼠的子宫为长筒状双子宫颈的双子宫类型，即两子宫各自独立地开口于阴道，没有尿生殖道。公母海狸鼠肛门腺均发达。     

家养海狸鼠的生态行为观察

对60只海狸鼠观察结果表明;在环境气温11—25℃范围,微风,阴凉气候条件下,海狸鼠活动率最高;下雨,大风和气温低于0℃或大于30℃时,海狸鼠活动率明显减少;定时饲喂时,90％以上的鼠同时出来采食;饲料喜食顺序为,精料>块根类>青菜>青草>干草;对粗纤维和木质素高食料咀嚼频率较快;常见争斗行为由食物、配偶、领地和配对不合理引发。海狸鼠4—7月龄性成熟;发情周期23—27天,无季节性;发情持续期3—5天;平均妊娠期为133天;胎产仔1—14只,平均6只。     

Study on the utilization of fat in nutria (Myocastor coypus) carcass

Composition and utilization of nutria fat were studied in this papcr. The results indicated that there were much amount of linolcic acid-necessary for human being and abundant fat-soluble vitamins VA,VE and VK. Nutria oil is tasteless, clear transparent and stable. The nourishing cream made from it had good cold or heat-resistance properties and it is a perfect natural cosmetics.     

育成前期雄性海狸鼠能量代谢的研究

利用电子计算机控制的呼吸测热装置，采用饥饿实验的方法，对育成前期雄性海狸鼠进行了能量维持需要的研究。结果表明：禁食状态下２４ｈ产热量为６２２．６４ｋＪ，其中蛋白质产热量为７３．１５ｋＪ，脂肪产热量为５４９．４４ｋＪ，基础代谢率为３９６．９６ｋＪ／ｄ．ｋｇ０．７５。