Reasons why pigs grow slowly
Release date:
2020-09-22
Pigs, as animals that have been domesticated by humans for a long time, naturally grow relatively quickly. When healthy pigs are fed a properly balanced diet, they can fully unlock their growth potential. But what factors might cause pigs to grow more slowly? Here are some key issues affecting pig growth:
One Varieties and Types
Due to differences in formation and rearing conditions, as well as varying economic traits, different breeds exhibit significant variations in fattening performance. For instance, lean-type pigs tend to gain weight more efficiently than fat-type pigs. Therefore, it’s essential to select breeds and types that are well-suited to local growing conditions for optimal results—after all, a superior breed forms the foundation for successful fattening. Additionally, economic crossbreeding can be an effective strategy, leveraging hybrid vigor to enhance feed efficiency and reduce overall farming costs.
Two Feed and Nutrition
If pigs don’t consume enough nutrients, their fattening process will inevitably be severely affected. Among these nutrients, energy and protein have the most significant impact. Generally speaking, higher energy intake leads to faster daily weight gain, improved feed efficiency, and increased slaughter yield—but it also results in a higher fat content. When protein levels exceed 18% Afterward, it has little impact on daily weight gain. For growing-finishing pigs, the key to optimizing protein utilization lies in amino acid balance—particularly lysine and methionine. Additionally, two months before the pigs are ready for market, they should be fed a diet low in unsaturated fats, as these can accumulate in body fat, leading to increased marbling and overall fat content.
Three The Impact of Rearing Methods
Pig fattening is carried out in two methods: pigs with free access to feed gain weight faster, develop thicker backfat, and exhibit lower feed efficiency, while pigs fed a limited amount gain weight more slowly, have thinner backfat, and demonstrate higher feed efficiency. During the fattening period, it's crucial to maintain an optimal pig house environment—especially paying close attention to temperature control. Both excessively cold and overly hot conditions can slow down weight gain and negatively impact fattening outcomes.
Four Piglet birth weight and weaning weight
Farmers often say: "A difference of just one ounce at birth can mean a loss of one pound by weaning, and even ten pounds by the time pigs are ready for market." This subtly highlights the critical importance of birth weight. Don’t let piglets start off on the wrong foot—after all, the heavier a piglet’s birth weight, the stronger its vitality, the more robust its constitution, and the faster it will grow. As a result, it’ll reach a higher weaning weight, and the greater the weaning weight, the better the overall fattening performance.
Five Stiff Pig
Due to prolonged malnutrition, the piglets' growth and development have been severely stunted. In the case of "stiff pigs," even after resuming proper nutrition, their growth remains slow and sluggish. Such animals are no longer economically viable for raising and must be culled.
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