The best time for sheep breeding
Ninety months is the golden season for sheep breeding. Because the gestation period of goats is 152 days and that of sheep is 150 days, when the weather is getting warmer and the lambs grow long enough to eat grass, both big and small sheep can eat fresh grass, coupled with a warm climate, which is conducive to improving the survival rate of lambs. At the same time, the lambs born that year can be mated when they grow to about 30 kilograms, which speeds up the reproduction of sheep and increases the turnover rate. Therefore, it is necessary to seize the opportunity to breed sheep in these two months. Whether it is goat or sheep, ewes usually show oestrus every 17 to 21 days. After oestrus, the vulva of the ewe is red and swollen, screaming and restless, with hands pressed on the rear buttocks and tail swinging. The timely mating period is 12 to 24 hours after estrus. It should be followed up again 12 hours after mating, which can improve the quasi-pregnancy rate and birth rate.
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Diagnosis and treatment of Porcine Respiratory Disease Syndrome
Porcine respiratory syndrome is a highly pathogenic infectious disease mainly caused by respiratory symptoms and pathological changes caused by a variety of viruses, bacteria and other microorganisms. Primary infections may include PRRSV, PCV-II, PRV, SIV, HCV, pathogens of porcine infectious atrophic rhinitis and mycoplasma, while secondary infections may include Streptococcus, Actinobacillus pleuropneumoniae, Haemophilus parasuis, Eperythrozoon, Salmonella and so on.
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Treatment of porcine nephritis
Cause: glomerulonephritis is inflammation of glomeruli, renal tubules and renal interstitial tissue. Mainly sick pigs eat moldy feed and drink toxic sewage, or accidentally eat poisonous plants; colds or abdominal kicks and falls are irritated. Influenza, classical swine fever, swine erysipelas, foot-and-mouth disease and other infectious diseases, or severe gastroenteritis, pneumonia, can be secondary to nephritis. Symptoms: depressed spirit, loss of appetite and elevated body temperature in sick pigs. Due to kidney pain, the back is arched, more lying than standing, standing with the hind legs open, or curled up under the abdomen, unwilling
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