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Prevention and Treatment of Rabies in Nutria Breeding
1) Prodromal stage. During this period, affected nutrias are briefly depressed and move slowly; the symptoms at this stage are not easy to notice. 2) Excitation stage. Affected nutrias show excitement and aggressive behavior, lunging at people and other animals, biting, clawing, and tearing everything they encounter. Affected nutrias can injure their own tongue, teeth, and gums and can break their lower teeth. Affected nutrias refuse food, do not drink water, and often swallow various objects placed in the cage. The violent stage recurs repeatedly; during episodes the affected nutrias groan, salivate excessively, and have diarrhea. 3) Paralysis stage. During this stage the paralysis process intensifies, manifesting as swaying of the hindquarters and paralysis of the hind limbs. Body temperature drops. Sick nutrias cannot rise, lie down unconsciously, and die in spasms and convulsions. (2) Necropsy: the gastrointestinal mucosa is congested or hemorrhagic; the liver is dark red and flaccid; the spleen is slightly enlarged, and there are also cases in which it is 2-3 times larger than normal. Anemia is found in the kidneys, and the boundary between the cortical layer and the medullary layer disappears. In some cases there is pulmonary hemorrhage. In the brain, congestion appears due to blood vessels being highly filled and dilated with blood. The fluid in the ventricles increases, and pinpoint hemorrhages are often found in the brain tissue. 4) Prevention. The measure for preventing rabies on nutria farms is to resolutely prevent outside dogs from entering the nutria breeding area; keepers must also be vaccinated against rabies. If rabies-infected nutrias are found on the farm, a blockade must be resolutely implemented, and the epidemic situation must be reported promptly to the higher competent department. Resolutely prevent sick nutrias on the farm from escaping off the farm; confirmed rabies-infected nutrias or carcasses of nutrias that died of the disease must all be burned or deeply buried; individuals that have not developed the disease must be examined one by one so that sick nutrias are detected in time. Healthy nutrias must all be injected with rabies hyperimmune serum, and 7-10 days later injected with rabies vaccine. Counting from the last case that died of rabies, the blockade is lifted after 2 months.
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Prevention and Treatment of Vitamin B Deficiency in Masked Palm Civets
Vitamin B deficiency is caused by a lack of vitamin B complex and is characterized by polyneuritis; a series of changes such as heart failure may also occur. Clinical symptoms of vitamin B deficiency: when vitamin B complex is lacking in the feed, after 20-30 days the diseased civets show loss of appetite, and after a further
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How to prevent and treat rickets in masked palm civets? A must-read for farmers
Rickets is a nutritional and metabolic disease of young masked palm civets. It is a disease caused by vitamin D deficiency, insufficient or improperly proportioned calcium and phosphorus, resulting in incomplete calcification, softening and deformation of bone tissue, stunted growth and development of diseased civets, and the appearance of pica. This disease mostly occurs in young civets under 3 months of age
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What are the prevention and control methods for feather pecking in meat ducks?
Feather pecking in meat ducks refers to the undesirable behavior during the rearing process in which one or more ducks in a flock peck their own feathers or peck at the feathers of other individuals. The pecked areas are mostly the back and wing tips, often causing sparse and broken feathers, bleeding hair follicles, and even torn skin; feathers are often eaten after being pecked out by the root.
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Key Points for Disease Management in Late Dry Period of Dairy Cows
The late dry period refers to the period from the end of the early dry period to before calving. It is also commonly called the pre-periparturient period, that is, the 2 weeks before calving. When cows approach calving in the pre-periparturient period, improper feeding and management can make them prone to various diseases. Therefore, at this stage
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What are the prevention and treatment methods for bovine blackleg?
Blackleg, commonly known as black leg disease, is an acute septicemic infectious disease of cattle, characterized mainly by black gas swelling in well-muscled areas (especially the thigh), with crepitation on pressure, hence it is also called black leg disease or bellowing gangrene. The pathogen is Clostridium chauvoei, an obligate anaerobe, which can survive in the body for as long as 5 years.
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What are the prevention methods for abomasal displacement in dairy cows?
Under normal circumstances, the abomasum of a dairy cow is located on the right side of the abdominal cavity, with the left side adjacent to the rumen. However, due to certain internal or external causes, the normal position of the abomasum changes abruptly, either lying below the rumen or shifting to the left side of the rumen, all of which can cause the dairy cow to lose its appetite entirely.
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Prevention and Treatment Methods for Schistosomiasis in Dairy Cattle
Schistosomiasis is a zoonotic blood fluke disease mainly caused by Schistosoma japonicum. Cattle have the highest infection rate, and the lesions are also relatively obvious; the main symptoms are anemia, malnutrition and stunted development. In China it occurs mainly in the Yangtze River basin and southern regions, and rarely in the north
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What are the prevention and treatment methods for bovine viral diarrhea
Bovine viral diarrhea in dairy cattle is also called mucosal disease. The disease belongs to the genus Pestivirus in the family Flaviviridae. Most cases are inapparent or mild infections that are not easily noticed. Acute infection is characterized by fever, anorexia, nasal discharge, coughing, diarrhea, weight loss, leukopenia, inflammation and erosion of the gastrointestinal mucosa
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What are the prevention and treatment methods for rheumatism in dairy cattle?
In traditional Chinese veterinary medicine, rheumatism is called bizheng (impediment disease). Modern medicine considers rheumatism to be a systemic allergic disease. It often affects muscles, joints and other parts. Although joint rheumatism in cattle is relatively rare, its harm is also quite serious if prevention and treatment are neglected. Causes The causative factors of rheumatism
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