Sweetener and its application in piglet feed
At present, due to the lack of conventional feed and the impact of rising prices, the aquaculture industry is increasingly using as raw material for feedstuffs cotton alum, rapeseed cakes, agricultural and sideline products, food industry scraps, etc., but this has also led to a serious palatable nature of feed. Drops affect the feed intake and production performance of piglets. The addition of sweeteners can improve feed palatability, increase feed intake, production performance, and feed digestibility of piglets and is worth promoting.
With the rapid development of the pig industry, the balance between feed nutrients and various nutrients and the full price of nutrition have been gradually improved. The growth performance of pigs has been greatly improved, but the optimal production performance has not yet been achieved. One of the most critical factors constraining this potential is the lack of food intake and the importance of sweeteners. As a special feed additive, sweeteners add to the feed can mask the smell of unpleasant substances in the feed, increase the feed intake of the piglets, and can solve the feed intake caused by unfavorable factors such as weaning, diseases, and stress. Drop, improve piglet production performance.
First, the sweetener should have the conditions
1. To have sufficient sweetness, sweetness is one of the important criteria for measuring sweeteners. Usually, the sweetness of sucrose is the object of comparison.
2. The duration of sweetness is long enough, the sweetness produced by the sweetener is closer to sucrose, the better the pig's feeding effect, and the sweetness produced by the sweetener can stay in the oral cavity for a long time, which can make the pig during the feeding process There is a constant stimulus in it.
3. Easy to dissolve, soluble in oral saliva, perceived by taste buds.
4. The stability is better. In the production, storage and use, the sweetener itself is not volatile and does not affect the other nutrients in the feed.
5. The strong odor masking power can better mask the bad odor produced by the added drugs or antioxidants in the feed.
Second, commonly used sweeteners in pig feed
1. sucrose. Usually the concentration of sweetener in the feed is in the range of 5% to 10% sucrose, which can produce better results. If sucrose is used as a source of sweetness, 3% or more must be added to the feed. However, due to the high price of sucrose, the cost is too high. Therefore, using sucrose alone as a sweetener is not an ideal choice.
2. Tomatin peptides. Tomatin polypeptide is a kind of natural polypeptide protein. It is a natural material extracted and separated from the special plant fruits. Due to its high sweetness, it is 1500-2500 times that of sucrose, and its price is cheap. It is widely used in feeds.
3. saccharin. Saccharin is also a fortifying sweetener, with a sweetness of 200-300 times that of sucrose. Sweetener can be used as a sweetener in feed for piglets. The amount of saccharin used in diets is generally 150-200 mg/kg. However, the sweetness of saccharine does not last long and should be used in conjunction with other fortified sweeteners and synergists.
4. Other sweeteners. Sucralose, similar to sucrose, has a sweetness of 400-800 times that of sucrose. It is a commonly used sweetener. The new hesperidin dihydrochalcone is 1500-2000 times sweeter than sucrose.
Third, the application in piglet production
Sweeteners have a short application time in piglet production, but as piglet diseases, increased stress, and imperfect development of the gastrointestinal tract cause a serious decrease in piglet feed intake, leading to a series of factors that affect piglet growth performance. Sweeteners are becoming more and more common in piglet feeds.
1. Increase feed intake. A large number of studies have shown that sweeteners can significantly increase feed intake of piglets. Adding sucrose to the diet can significantly induce food intake within 1 week after weaning, and increase weight gain by 29.7% compared with no added sweeteners. In addition, in terms of application effect, the sweetness of the sweetener is not as sweet as possible, and should be maintained in an appropriate range, 120 mg/kg sweetener of 200 times the sweetness is better, and 120 mg/feed is added. The 450-fold sweetener of kilograms is best for improving the feed intake of the piglet, and the addition of the additive to the pellet feed can maximize the feed intake of the piglet.
2. Improve production performance. The increase in feed intake of piglets will inevitably increase the performance of piglets.
3. Impact on other aspects of piglets. The addition of sweeteners to the feed can increase or prolong the flavor of the feed. It can also increase the secretion of gastric juice, intestinal juice, pancreatic juice, bile, protease, amylase and lipase, and improve the digestibility of the feed for piglets. Cover feed odor and increase feed palatability.
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