Effect of adding Ke Li can on the performance of weaned piglets
High-fat diets can improve the growth performance of piglets, but the feeding effect of fat in the first 2 weeks of early weaned piglets is not ideal, because the fat in the digested breast milk is very large with the animal or vegetable oil in the digestive diet. Differently, piglets have great differences in the digestibility of milk fat and dietary fat. The main reason is that breast milk has been highly emulsified, and the size of fat particles also greatly affects the digestion of fat in weaned piglets. Studies have shown that the ability of piglets to absorb fat particles in the small intestine exceeds their ability to form, so the extent to which fatty acids form fat particles limits the digestion and absorption of fatty acids. The digestive tract development of young animals is incomplete, and the secretion of endogenous digestive enzymes such as lipase and bile salts in the body is far insufficient to digest and absorb the oil in the feed, resulting in waste of fat in the feed, so it is used in the diet of weaned piglets. In the case of fat, the addition of exogenous emulsifiers is very important, especially the addition of fats in the weaning stage of piglets is no longer limited to a single fat. Ke Lineng is the latest research achievement of Ke Neng Animal Nutrition Co., Ltd. It is the only natural bioemulsifier that participates in the whole process of fat metabolism in China. It can improve the emulsification, transportation and metabolism efficiency of fat and promote the digestion and absorption of fat in livestock and poultry. . The purpose of this study was to investigate the effect of kelin on fat digestion and production performance in weaned piglets. 1. Materials and methods 1.1 Test time and location The experiment was carried out in a large-scale pig farm in Shandong from September to October 2014. The trial period was 33 days, of which the pre-test period was 5 days and the trial period was 28 days. 1.2 experimental design The test was based on a single factor design. According to the principle of similar body weight and similar genetic basis, a total of 240 ± 2 (male and female) pigs of day-aged PIC weaned pigs were selected for 35±2 (21-day-old weaning and 14-day feeding). According to the initial age, weight and gender, they were randomly divided into 4 groups, 3 replicates in each group, and 20 pigs per replicate. The four treatment groups were soybean oil control group 1, soybean oil-emulsifier group 2, pig fat control group 3, and lard-emulsifier group 4, respectively. The experimental basic diet was selected from the corn-soybean meal type commonly used in Shandong. The nutritional level is determined by reference to NRC growing pig nutritional needs and according to the practice of raising pigs in Shandong Province. The test control group used a basal diet supplemented with 5% soybean oil or lard, and the test group (emulsifier group) added 400 g/ton of reinforced coli energy. The composition and nutritional level of the test diet are shown in Table 1. Table 1 Test diet composition and nutritional level Note: The content of trace element premix per kilogram: Cu, 40g; Fe, 13g; Zn, 24g; Mn, 1.6g; I, 0.028g; Se, 0.046g. Multivitamin per kilogram content: VA, 54 million IU; VD3, 10.8 million IU; VE, 18,000 mg; VK3, 5g; VB1, 2g; VB2, 15g; VB12, 20mg; folic acid, 500mg; niacin, 35g; Calcium 25g. 1.3 Feeding Management During the test, the pigs were allowed to eat and drink freely while keeping the house ventilated, hygienic and dry. Daily feeding management and immunization procedures are carried out according to the routine methods of the farm. 1.4 Determination of indicators 1.4.1 Determination of growth performance The fasting individuals were weighed before the early feeding at the beginning and end of the experiment, and the main growth performance indexes such as average daily gain, average daily feed intake and feed-to-weight ratio of each group of piglets were calculated. 1.4.2 Determination of diarrhea frequency Observe the diarrhea of ​​weaned piglets. Observation method: Observed by the pollution near the anus and the mental state of the pig. Calculation method: frequency of diarrhea = [total number of daily diarrhea heads during the test / (number of test heads x number of test days) x l00%]. 1.5 Statistical Analysis After the raw data were summarized by Excel2010, one-way analysis of variance was performed using SPSS19.0, and multiple comparisons were performed by Duncan method. The results were expressed as mean ± standard deviation. 2. Results and discussion 2.1 The impact of performance of weaned piglets Only soybean oil or lard was added to the diet (treatment group 1 and treatment group 3). There was no significant difference in the average daily gain, average daily feed intake and feed-to-weight ratio for the 35-day-old weaned piglets within 0-4 weeks. Impact (p>0.05). Adding soybean oil or lard to the diet and adding emulsifier (treatment group 2 and treatment group 4) increased the average daily gain and average daily feed intake in 35-day-old weaned piglets. However, the addition of soybean oil and emulsifier (treatment group 2) and the addition of soybean oil only (treatment group 1) did not significantly differ between the two indicators (p>0.05), while adding lard and emulsifier (treatment group 4) and only adding pigs. Lipid (treatment group 3) showed significant difference between the above two indicators (p<0.05). Table 2 Effect of Ke performance of weaned piglets Note: The difference in peer averages indicates that the difference is significant. Compared with no added emulsifier in the diet (treatment group 1 and treatment group 3), add soybean oil or lard while adding emulsifier (treatment group 2 and treatment group 4) to the weight of the 35-day-old weaned piglets within 0-4 weeks. The specific effect was significant (p<0.05), but the difference in feed-to-weight ratio between treatment groups (treatment group 2 and treatment group 4) with emulsifier addition was not significant (p>0.05). Studies have shown that as piglets age, the difference in fat source saturation becomes less and less important. In this test, the weaning period of piglets is 35 days old. At this time, the piglets themselves may have strong ability to emulsify saturated fatty acids, and can better utilize the high-saturated lard. However, it can be seen that the performance index of weaned piglets after different additions of Keli can be improved to some extent. This is related to the enzymatic hydrolysis of fat in the small intestine, and the participation in the synthesis of apolipoprotein, which promotes the chylomicrons. Transport in the blood, which increases the rate of digestion and absorption of fat in piglets. 2.2 The effect of Ke frequency of diarrhea in weaned piglets Adding soybean oil or lard to the diet without adding emulsifier had no significant effect on the frequency of diarrhea within 0-4 weeks of 35-day-old weaned pigs (p>0.05), but compared with no emulsifier treatment group (treatment group 1) And treatment group 3), the emulsifier treatment group (treatment group 2 and treatment group 4) had a tendency to decrease the frequency of diarrhea in weaned piglets. Table 3 Effect of Ke frequency of diarrhea in weaned piglets Ke Li can make up for the insufficiency of endogenous digestive enzymes such as incomplete development of digestive tract in piglets, lipase and bile salts in the body, so that the digestive tract of piglets can make rational use of oil and oil to avoid causing nutritional diarrhea. 3. Conclusion The experimental results of this study indicate that Ke Li can be the only natural bioemulsifier involved in the whole process of fat metabolism in China. Adding to the diet of weaned piglets can effectively improve the performance of weaned piglets and reduce the nutrition caused by excessive oil addition in weaned piglets. Sexual diarrhea. 4. References (omitted) Melamine Plywood,Melamine Faced Plywood,Melamine Veneer Sheets,Melamine Plywood Sheets LINYI JIUHENG IMP&EXP CO.,LTD , https://www.jiuhengwood.com