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秋季影響豬只健康的因素
呼吸道疾病。進(jìn)入秋季，為了調(diào)節(jié)豬舍溫度和濕度，通風(fēng)是很重要的。一方面如果通風(fēng)不暢，豬舍的有害氣體例如氨氣、硫化氫等不但難聞，而且有很強(qiáng)的刺激性。對(duì)豬眼睛、呼吸道黏膜都有很強(qiáng)的腐蝕性。在這種環(huán)境中生存的豬群，出現(xiàn)呼吸道疾病的幾率大大提高。另一方面如果通風(fēng)過大，豬舍進(jìn)入冷空氣易引起仔豬咳嗽等呼吸道疾病。斷奶仔豬適宜的濕度為65%~70%。過于潮濕會(huì)引起皮炎、疥癬等疾病，過于干燥能引起灰塵增多，誘發(fā)喘氣病、萎縮性鼻炎等疾病。
秋季仔豬腹瀉。從炎熱夏天到?jīng)鏊锾欤瑲鉁叵陆递^大，晝夜溫差更是達(dá)到10℃，容易引起斷奶仔豬的腹瀉，影響仔豬的生長(zhǎng)。仔豬斷奶時(shí)體溫調(diào)節(jié)能力尚未完善，需要26℃~28℃的舒適環(huán)境溫度。
飼料霉變。秋季雨水多，特別是沿海城市，伴隨臺(tái)風(fēng)天氣影響降水較多，所儲(chǔ)存飼料時(shí)間過長(zhǎng)的話容易霉變。霉變的飼料一律停止喂養(yǎng)，防止豬只病變。
豬只受寒。豬只在天黑前后進(jìn)食過遲、貪食過多、進(jìn)食后就地睡眠，膨脹的胃內(nèi)容物經(jīng)夜間寒冷的侵襲，導(dǎo)致胃內(nèi)容物的異常發(fā)酵會(huì)引起豬只發(fā)熱、感冒。
飼養(yǎng)管理及預(yù)防措施
保持空氣溫度與濕度。在沒有氣溫變化之前就應(yīng)準(zhǔn)備好加溫設(shè)施，修補(bǔ)欄舍并加強(qiáng)夜間保溫工作，做到有備無患，把自然因素造成的損失降到最低。降低豬舍濕度和改善豬舍空氣的最好辦法是通風(fēng)換氣，而通風(fēng)換氣最有效的措施則是保持欄頂通風(fēng)設(shè)備的正常運(yùn)轉(zhuǎn)，這樣不用開門窗就能盡快將舍內(nèi)的大量潮氣和不良?xì)怏w排出，并換入新鮮空氣。但通風(fēng)要有節(jié)制，晴天、暖天多通風(fēng)，陰天、冷天少通風(fēng)，做到通風(fēng)與保溫相協(xié)調(diào)。
傳染性胃腸炎和流行性腹瀉是秋季常見的一種傳染病。如果提前兩個(gè)月給仔豬打疫苗，這些豬長(zhǎng)大后體內(nèi)的抗體仍可抵御病原的威脅，就會(huì)大大減輕疫病的危害。
斷奶前盡早補(bǔ)加教槽料，提高仔豬免疫力。建議在斷奶前每頭至少補(bǔ)飼600克教槽料，使仔豬在斷奶前胃腸消化系統(tǒng)功能得到加強(qiáng)，以適應(yīng)斷奶后采食飼料尤其是植物性飼料。建立對(duì)飼料粗蛋白質(zhì)的免疫耐受性，減少日糧抗原過敏反應(yīng)。在飼料中使用微生態(tài)制劑，可以改善胃腸道環(huán)境，預(yù)防仔豬腹瀉，提高仔豬免疫力和抗病力。
The English version
The factors influencing pig health autumn
Respiratory disease. Enter the autumn, in order to adjust the temperature and humidity piggery, ventilation is very important. If ventilation on one hand, piggery harmful gases such as ammonia, hydrogen sulfide, such as not only bad, and has a strong excitant. To the pig eyes, respiratory tract mucous membrane, has the very strong corrosion resistance. Pigs to survive in this environment, a greatly increased risk of respiratory disease. On the other hand if ventilation is too large, piglet piggery into the cold air is easy to cause cough and other respiratory diseases. Weaning piglets suitable humidity is 65% ~ 70%. Too wet will cause diseases such as dermatitis, itching, too dry dust can cause increased, induce pant disease such as disease, atrophic rhinitis.
The autumn diarrhea piglets. From the hot summer to autumn, cool temperatures is bigger, more than $10 ℃ temperature difference between day and night, easy to cause the diarrhea of weaning piglets, affect the growth of piglets. Piglets weaned thermoregulation ability has not been perfect, need to 26 ℃ ~ comfortable environment temperature 28 ℃.
Feed mildew. Autumn rain much, especially the coastal cities, along with typhoon weather affect precipitation is more, the storage time is too long to feed mildew. Mouldy feed all stop feeding, prevent pig disease.
Pigs get chilled. Pigs eating too late before, during, and after dark, gluttony, after eating too much on the sleep, the expansion of the gastric contents through the cold night, resulting in abnormal gastric contents of fermentation can cause swine fever, a cold.
Management and prevention measures
Keep the air temperature and humidity. Without temperature changes should be ready before heating facilities, repair bar insulation and strengthen the night work, encounter, to minimize the loss caused by natural factors. Reduce the humidity and the best way to improve the piggery air piggery is ventilated take a breath, and ventilation is the most effective measures to keep bar top ventilation equipment normal operation, so that you don't have to open doors and Windows as soon as possible will give up in a large number of moisture and harmful gas discharge, and change into the fresh air. But ventilation to temperate, sunny, warm day more ventilation, cloudy, cold day less ventilation, ventilation and insulation coordination.
Infectious gastroenteritis, epidemic diarrhea is a common infectious disease autumn. If two months in advance to the piglets vaccinated, the pigs grow up antibody in the body can still be threat against pathogens, will greatly reduce the dangers of disease.
Weaned before adding teach slot material as soon as possible, improve piglet immunity. Advice before weaning each supplementary feeding at least 600 grams teach tank material, make before weaning piglets gastrointestinal digestive function is strengthened, so as to adapt to feed especially plant feed intake after weaning. To establish immune tolerance to crude protein feed, reduce the diet antigen allergic reactions. The use of probiotics in feed, can improve the gastrointestinal tract environment, the prevention of diarrhea piglets, improve piglet immunity and disease resistance.
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