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Acidification in weaned piglets diets effect test


Pain control Jiang Hongmei (c Tangxiang Luxi County Veterinary Station, Yunnan Luxi 652400) is a cold mountainous area three Tangxiang Township, township jurisdiction 8 village, 48 villagers groups, total range of Luxi County under the jurisdiction of Dongshan liangzi 1 / 2 or so. Lying northwest to southeast, within the rolling mountains, canyons,[link widoczny dla zalogowanych], vertical and horizontal, high mountains and steep slopes, forming a canyon, trapping ponds, hills and white complex topography, a typical cold, dry heat, valleys, karst areas. A set the highest point in the old tomb Qing Zuo, altitude 2459m, the lowest point Nanpanjiang small estuaries, elevation 820m. To planting the main township, mainly corn, wheat, potatoes, buckwheat, tobacco, pyrethrum, rape and other crops. Families, primarily cattle, horses, mules, mountain (Sheep), pigs and other livestock. According to statistics, in 2007,[link widoczny dla zalogowanych], the township has 5,586 22,497 persons; end of 2008, the township has more than 1,300 households of more than 1,900 breeding sows head. Low level of technology as pig farmers, pigs at weaning high incidence of early weaned piglet diarrhea delay in production and an important reason for high mortality, caused by pig farmers to large economic losses, according to the survey, three in 2008, Tang Xiang in piglets fed different levels about 70% of the incidence of diarrhea. Received date :2009-04-13 + n-Bu n-Bu Bu diarrhea of the disease occurs mainly in years of poor immunization or villagers are concentrated groups of villagers, mostly seasonal. (1) Classical swine fever: classical swine fever virus pathogenic to different species, age and gender of the pigs can be infected, do not Seasonal, source of infection is infected pigs and infected pigs. weaned piglets after weaning because of low resistance, susceptible, and infected piglets after the body temperature to 41 ??,[link widoczny dla zalogowanych], and some can be as high as 42 ?? or more, before the dry feces rare, mortality is higher. (2) epidemic diarrhea: The disease of all-day-old pigs were susceptible to infection, the younger the higher morbidity and mortality. The disease mostly occurs in the winter cold season, the summer occasionally occur. pigs after the onset of vomiting, diarrhea and dehydration, fecal dilute water, grayish yellow or gray, in eating or vomiting after breast-feeding, 1d disease in piglets, the body temperature normal or slightly higher, diarrhea, dehydration after the death of 2-4d, the mortality rate an average of 50%. weaned pigs,[link widoczny dla zalogowanych], finishing pigs and sows often based anorexia, body temperature normal, diarrhea, back to normal after 3 ~ 7d. disease and infectious gastroenteritis in the clinical similar, but one of a ++- + - a -+--+--+- a - 'Bu - + - a - + r feed conversion ratio: test 2 group than in the control group increased 22.95%, compared with an increase of 12 group 1 .96%; test 1 group than in the control group increased by 11.48%. 3 Summary of piglets due to stress, decreased gastric acid secretion piglets, it was reported in the first 2d particularly prominent weaning, weaning earlier, on intragastric acidity of piglets greater. In addition, weaning, food to eat solid feed milk to a full, general merchandise piglet feed pH 5.8 to 6.5, regardless of what kind of solid feed intake, intragastric pH values rose immediately. piglets acidity of the digestive tract is a digestive enzyme secretion and activity of piglets one of main factors, many of digestive enzymes in the acidic stomach environment, strong activity. pepsin general requirements for pH value of 2 ~ 3.5, pH value of less than 4 activity, or inactivation, so the digestion and absorption of nutrients further reduced, thus too much protein Chung human colon by microbial fermentation in the large intestine, producing ammonia, amines, indole and hydrogen sulfide and other corrupt products. corruption substances on colonic mucosa stimulation, so that an increase in intestinal fluid secretion, diarrhea and worse. in weaned piglets add acidifier, helps reduce piglet digestive tract pH, to increase the activity of digestive enzymes, therefore, can reduce diarrhea rates of weaned piglets and increase nutrients digestion and absorption, thereby promoting growth and development of piglets. In recent years, in weaned piglets acidifier added many reports, most reports have remarkable results. It can be seen from this experiment, one weaned piglets had significantly lower rates of diarrhea; Second, the average daily gain, feed conversion rate was significantly increased; third is easy to use; Therefore,[link widoczny dla zalogowanych], in weaned piglets, in addition to add other additives, but also add acidifier.
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