Pig Feed Additives Should Pay Attention To Matters
Eating feed not only enables the pig to help them grow ，but also stay healthy. Therefore, Prof. Josef Kamphues, Professor of Hannover Veterinary University in Germany, called for viewing things from different perspectives.
German professor Josef Kamphues specializes in animal nutrition and intestinal health and has been working in animal health for many years. Since 1993, he has been leading the Animal Nutrition Institute (TiHo) at the Hannover Veterinary University in Germany. It takes time to find the correct location of the institute on this large university campus. The signage is only at the entrance, but all buildings look very similar. In between lectures, Professor Kamphues makes time for an interview. He is not afraid to share his opinion. He knows that his ideas do not always match the common practices in the pig business. When this all come down to Professor Kamphues, pig producers should start weaning at 5-6 weeks. This will cause weaning diarrhea in a large number of cases to become a problem in the past.
All about feed: How important is the pig's gut health?
Professor Kamphues: “Very important. 40% of the cases of using veterinary antibiotics are related to the pig's digestive problems. I believe that the technical results should not be the only ones in the preparation and production of feed diets or compound feeds. Considering factors, the impact of feed on pig health should receive more attention, and it is very important to study this topic in the next few years.
To what extent does animal nutrition work?
“The grinding and granulation of raw materials is contrary to the health and function of the stomach and the welfare of animals. Grinding the raw material until nothing is left, but a finely ground feed, is really bad. Feed can not only help animals grow, but also stay healthy. So processing technology plays an important role in maintaining the pig's stomach in an optimal state.Fermented feed is also an option.Controlled fermentation of feed has a wide range of advantages, especially for intestinal health.But there is one point to keep in mind. The risk of fermenting rations is that there will be many particles smaller than 0.2 mm, which has a higher risk of gastric ulcers.This is why adding non-fermented ingredients to the final product is recommended, for example, in barrel-milled barley.
Is E. coli still the enemy number 1?
"Yes, I'm scared. I've been researching pig E. coli for the past 30 years. During those years, the research raised more questions than answers. There is little problem with edema caused by E. coli. Because there are good vaccines available, however, things are different for weaning diarrhea caused by enterotoxigenic Escherichia coli (ETEC). Finding a solution to this problem is still a huge challenge. Many farms are 22 to 26 days old The piglets become infertile when they are in. In the gastrointestinal tract of the piglets, when they suddenly cannot accept any milk, they must be completely confused and present a feed of plant origin. 15 sows weaned are considered normal. One third of the animals did not consume any dry feed at all, while the other one third received occasionally some dry feed, and the last group never entered the correct preparation phase because it lacked sufficient amounts of colostrum and Breastmilk. Now the last group is the least important, so when you remove milk from a litter of piglets, the situation may not be good. For these young piglets Saying that if feed consumption stops for a few hours, this is catastrophic, and if there is no nutrition, they will not be able to persist for a long time, and as a result, they will overeat. My advice against weaning diarrhea is often unpopular. I recommend Removing the piglet in five to six weeks will allow the piglet to become accustomed to dry feed.The younger the weaning, the greater the risk of piglet intestinal problems."
Are the gastrointestinal tracts of pigs after weaning sensitive?
"Absolutely. The small intestine is about 22 meters long. This allows the animal to absorb nutrients. Protein digestion in the small intestine is important. Concerns about strong growth remain a real danger. To keep the gut healthy, it is ideal to grind grains and meals. The granular, finely divided raw material is the real burden on the gastrointestinal tract.
Prof Dr Josef Kamphues has been leading the Institute for Animal Nutrition since 1993, this is a part of the University of Veterinary Medicine Hannover, Foundation. Prior to that, he had a similar position in Berlin, Germany. Prof Kamphues spoke at the Higher Pig Health event, in January 2018, which was coordinated by Boerderij, a Dutch-language sister title to All About Feed.
What role does animal management play?
“To a large extent, I will say. Good hygiene and climate will help prevent the occurrence or worsening of infections. Pressures will affect feed digestion and reduce resistance. In one section it may be too cold. But it's too hot. Another hazard is that the mycotoxins in the feed, especially deoxynivalenol (DON), are dangerous. If pigs are exposed to vomiting toxins for a long time, they will have intestinal damage, so the pathogens are There are more opportunities to attack, all at the expense of animal health and welfare.
What about raw materials?
“The choice of raw materials does play a role in feed digestion. For example, rye in pig feed is a good choice. Rye contains carbohydrates that are fermented in the large intestine. During fermentation, a considerable amount of butyric acid is being produced. This will hinder the growth of Salmonella and will also make the animal healthier. In addition, rye has another advantage. This type of grain also affects the formation of skatole, which is the two compounds that cause odor in boar meat. In some animals, boar taint is more related to skatole, and in other animals it is more related to androstenone.
Is it realistic to aim at hog companies that do not use antibiotics?
"Yes, but in one case: Everyone must admit that because of the increase in the infection rate, the animal loss rate in the pig industry will increase significantly. This is where the various needs conflict. People are demanding reductions in antibiotics. However, it is also important to maintain a low loss rate and ensure the welfare of animals.Vaccination is an important tool for reducing antibiotics.