What are the scientific weight-gain methods for pig farming abroad?
Pig farming is now being carried out on an increasingly large scale. Whether in rural areas or cities, there are large pig farms or pig farmers, and pig farming techniques are constantly being updated and improved. The profit point of pig farming lies in the quality and weight of the pigs. Apart from quality, the weight of the pigs can be said to be a very important factor. China is not very mature in this respect, so below we bring you weight-gain techniques for pig farming from abroad. Let's learn about them together!
I. Weight gain with citric acid
In the UK, many farmers have seized on citric acid. Citric acid has a very significant effect on the weight gain of pigs, and citric acid is a chemically extracted substance that naturally has a taste of its own. Citric acid is generally used as an additive. Adding citric acid to pig feed can improve the palatability of the feed, and can also soften some coarse-fiber feed, and can also improve the pig's digestive system and digestive capacity so that it can better absorb nutrients. Another aspect is raising the feed conversion rate, so that a pig's daily weight gain can be increased to 216 g. Therefore, weight gain with citric acid is very suitable for weaned pigs in the 5-10 kg growth stage. Adding 30 g of citric acid per 1 kg of feed is enough to produce the effect.
II. Weight gain with calcium formate
In Finland's pig farming industry there is a substance called calcium formate. As soon as this substance was discovered to have this effect, it was immediately put into the production of pig feed. Researchers in Finland combined calcium formate with pig feed, and after experiments found that it really had an effect. Later, calcium formate was used in large quantities in production. Farmers add 1.54 g of calcium formate to the feed within several weeks after piglets are weaned. The feed made from this mixture can increase the growth rate of piglets by 12% or more, bringing the feed conversion rate to 4%. Moreover, this calcium formate mixed feed can reduce the incidence of disease in piglets to the greatest extent. It is a relatively safe and green way to increase weight in pig farming.
III. Weight gain by "moving house"
In the United States, some experienced farmers found that in the process of frequently changing pig pens, the pigs' growth rate accelerated, and at the same time the pigs' appetite was also enhanced. Some pigs that normally did not move much also became fond of activity. Although the effect is very good, this method should not be used too frequently; once a month is enough. Each time, the pig pens changed should be about the same size, and the farming arrangement should also be about the same. New pigs should not be casually mixed into each group of pigs or casually replaced, because this will make the pigs uneasy and make it hard for them to adapt. In the end, the effect will not be achieved, and instead the pigs' inner stress and mental state will be worsened. Some may even develop depression, and there may even be biting and fighting in the new pig groups.
IV. Weight gain with high protein
In addition to the citric acid weight-gain method, the UK has also developed a method of gaining weight by relying on high protein. Farmers prepare high-protein feed containing more than 18% crude protein starting two weeks before the sow gives birth, and then continue using this feed until the sow's weaning period, when they can switch to ordinary feed with a relatively low protein content. This can not only greatly increase the birth weight and weaning weight of piglets, but also reduce the disease rate of piglets. It can also effectively shorten the sow's farrowing cycle, thereby increasing the conception rate and the number of piglets born, greatly improving the reproductive efficiency of pigs.
V. Weight gain with copper
In Japan, farmers use the effect of trace elements to increase weight. We all know that copper has the effect of increasing the metabolic rate of organisms. Mixing antibiotics and an appropriate amount of copper into feed and feeding it to pigs can increase the pigs' daily weight gain by 6.7% and raise the feed utilization rate by 2%-5%. Feed containing copper has very strong antibacterial properties, can inhibit the invasion and harm of some pathogens to the pig's body, and safeguards the healthy growth of pigs.
The above are the scientific weight-gain methods for pig farming abroad. Many weight-gain methods on the internet are not advisable, and everyone should have a certain ability to judge. Some methods will cause abnormalities in the pigs' bodies and affect subsequent growth and breeding. In addition, some weight-gain formulas contain some harmful chemical components, and I hope everyone can identify them. That is all for this introduction. Qinongwang will continue to provide everyone with the latest and best farming techniques, so please pay more attention and keep looking forward to it!