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B. L. MUNDAY M.V. Sc M.A.C.V. Sc R. W. MASON B.V. SC. W. J. HARTLEY F.R.C.V.S. M.V. Sc M.A.C.V. Sc F.R.C. Path. † 《Australian veterinary journal》1976,52(2):92-96
Five central nervous diseases are described and their relationships to previously recorded conditions are discussed. The conditions are congenital inclusion-body encephalopathy probably caused by a paramyxovirus infection, idiopathic neuraxial oedema of a newborn calf, focal symmetrical encephalomalacia of a young calf, yacca (Xanthorrhoea spp) poisoning of adult cattle leading to spinal demyelination, and focal demyelination and neuropathy in an adult cow. 相似文献
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P. W. Ladds M.V.Sc. Ph.D. P. M. Summers B.V.Sc. M.Sc. J. D. Humphrey B.V.Sc. M.Sc. 《Australian veterinary journal》1975,51(10):472-477
A total of 7495 postpuberal beef cows from herds in north Queensland and the Northern Territory were examined at abattoirs to define the extent of wastage due to the slaughter of pregnant cows. On the basis of examination of teeth most cows (57%) were considered mature (approximately 3.5 to 7 years) at slaughter; 14% were young (9 months to 3.5 years) and 29% were old (over 7 years). In herds where pregnancy diagnosis by rectal examination had not been used at time of culling, 71.6% of slaughtered cows were pregnant and 42% of these cows were in the second trimester. This high pregnancy rate was considered an important source of herd wastage. Pregnancy rate varied little with season, but the highest percentages of cows pregnant in the first and third trimesters were recorded in autumn and spring, respectively. Most cows found non-pregnant had active ovaries at time of slaughter. Anoestrus was observed to be most common in winter and in old cows. Lactational status was not recorded. Mean cold carcase weight of 4229 cows was 161 +/- 40 kg. Maximum carcase weight was observed in cows slaughtered at 4 to 6 years of age; old cows had the lowest carcase weight (147 +/- 31 kg) of the age groups considered. Highest (170 +/- 43 kg) and lowest (135 +/- 41 kg) carcase weights in relation to pregnancy or ovarian status were observed in non-pregnant/ovary-active and non-pregnant/anoestrus cows respectively. Carcase weight of cows in the third trimester (165 +/- 35 kg) was greater than in the second (161 +/- 35 kg) or first (157 +/- 36 kg) trimesters; difference between the first and third trimesters was significant (P less than 0.01). 相似文献
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本文通报了2012年全国家畜血吸虫病疫情状况。在2012年,湖南省、湖北省、江西省、四川省、安徽省、云南省、江苏省等7省共有存栏牛1 033 056头,存栏羊2 024 512只,其他家畜存栏数891 301头(匹、只)。2012年共检查了684 899头牛,其中牛血吸虫病阳性3961头,阳性率0.58%,比2011年的阳性数下降了42.57%;检查了71 473只羊,其中羊血吸虫病阳性406只,阳性率0.57%,比2011年的阳性数下降了4.19%,并对142 976头其他家畜进行了检查,其中血吸虫病阳性为21头,阳性率0.01%。湖南省和江西省的病牛数占到了全国病牛数的80.06%。2012年,全国家畜血吸虫病疫情较之2011年继续下降,但是洞庭湖和鄱阳湖地区依然是今后家畜血吸虫病疫情控制的难点和重点。 相似文献
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A. D. J. Watson B.V.Sc. Ph.D. J. S. Wannan B.Sc. † W. L. Porges B.V.Sc. † F. J. Testoni B.V.Sc. Ph.D. § 《Australian veterinary journal》1976,52(9):425-426
From June 1971 to June 1972, sera from 600 dogs in Sydney were tested for leptospiral agglutinins by a rapid slide agglutination method. The end-point titre was taken at 50 percent agglutination of the live organisms. Forty-one samples (6.8 percent) had a significant leptospiral titres (100 or greater) and 5 of these reacted to 2 serotypes. Thirty serums (5 percent) contained agglutinins against L. copenhageni, and 6 (1 percent) against L. pomona, while a few samples reacted against hardjo, tarassovi, australis, grippotyphosa or pyrogenes serotypes. No significant titres were found to L. canicola, L. hebdomadis, L. autumnalis or L. bataviae. 相似文献
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Christopher R. Lamb MA VetMB Kenneth W. Simpson BVM&S PhD 《Veterinary radiology & ultrasound》1995,36(2):139-145
Pancreatitis can be induced in dogs by intravenous infusion of supraphysiologic doses of synthetic cholecystokinin octapeptide (CCK-8). Eight anesthetized female beagles were given either CCK-8 or saline in a randomized, blinded fashion and had abdominal ultrasonography to study the development of pancreatic lesions. Pancreatic lesions were apparent 2 hours after the start of CCK-8 infusion and included swelling, interlobular and subcapsular fluid accumulation and patchy hypoechogenicity of the gland parenchyma. CCK-8 had a variable effect on gallbladder emptying. No signs of biliary obstruction or duodenal lesions were identified. Dogs given CCK-8 had severe edematous pancreatitis at necropsy six hours after the start of the infusion. Compared to the oleic acid model of pancreatitis, CCK-8 infusion induces a rapid onset of pancreatitis and an ultrasonographic appearance that reflects diffuse edema of the gland. The short time-scale of the experiment may account for the relative absence of secondary lesions affecting the biliary tract or duodenum compared to the naturally-occurring disease. 相似文献
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循化县岗察乡暖棚养羊试验浅析 总被引:1,自引:0,他引:1
通过示范户与对照户暖棚养羊试验,对养羊农户暖棚内进行温度、湿度、牲畜保膘、繁活率等指标的测定,并进行对比分析,其结果表明:暖棚饲养比敞棚饲养,绵羊的产肉量、产毛量有不同程度的提高,死亡率下降。 相似文献
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