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What are the signs of aging in dogs? Watch out for these changes
Dogs kept as family pets generally begin to gradually age after they reach 10 years old. The main signs of aging in dogs include: estrus behavior becomes less pronounced, reproductive capacity stops completely, the skin becomes dry and wrinkled, the muscles age, stiffen, and lose elasticity, and the coat loses its luster, begins to thin, and becomes messy. The mouth, ears, skin, and other areas give off an unpleasant odor different from before. If the dog has a darker coat color, white hairs can be seen mixed in. The whiskers around the mouth begin to thin, teeth fall out, chewing becomes difficult when eating, and appetite decreases.
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Weather changes trigger acute dehydration and death in rabbits, requiring vigilance
In August 2007, an acute intestinal infectious disease characterized by severe diarrhea, dehydration and rapid death occurred in the breeding rabbit flock of a rex rabbit farm. The incidence rate was about 60%, and the mortality rate reached 40%. Based on epidemiology, clinical symptoms and pathological changes, combined with laboratory testing, it was finally diagnosed as Tyzzer's disease in rex rabbits. The relevant situation is reported as follows. I. Onset process: A rabbit farm raised 1000 rex rabbits, of which more than 200 were breeding rabbits. In early August, after 5 consecutive days of local rain and with the temperature exceeding 3
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What are the pathological changes of aflatoxin poisoning in pigs?
In acute cases, anemia and hemorrhage occur, with massive bleeding in the thoracic and abdominal cavities, and petechial spots often on the serous membrane surfaces. Hemorrhage occurs in the subcutaneous muscles in front of the thigh and under the scapula. The liver is enlarged with bleeding points. In the part of the liver adjacent to the serous membrane there are pinpoint or ecchymotic hemorrhages, obvious hemorrhages are common on the epicardium and endocardium, and hemorrhages are often present throughout the body muscles. In chronic cases, there is proliferation and sclerosis of the liver bile ducts, yellow fatty degeneration of the liver, white spots or necrotic lesions on the liver surface, and effusion in the thoracic and abdominal cavities. The renal cavity is pale and swollen. The systemic lymph nodes are congested and edematous.
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A detailed explanation of the silkworm growth process: changes at each stage at a glance
The silkworm growth process
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Detailed picture guide to the silkworm's growth process, with the changes at each stage clear at a glance
Detailed picture guide to the silkworm's growth process
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