What feed factors affect the feed intake of finishing pigs?
Feed factors that affect the feed intake of finishing pigs
Feed factors that affect the feed intake of finishing pigs
1 Dry versus wet issue. There are currently three types of feed used for pigs, namely: dry mash, wet mash (water-to-feed ratio 1:1) and slop. According to trials, the wet mash feeding method gives the best feed intake, while slop is the worst. 2 Particle size. The ideal corn particle size is 0.8 mm-1.5 mm. If it is too coarse, feed utilization declines and waste occurs; if it is too fine, over time it may cause digestive tract ulcers, which is harmful to health, and at the same time too fine a feed also reduces palatability, thereby affecting feed intake. 3 Crude fiber content level. If the crude fiber content in the feed exceeds 6%, the pig's feed intake declines. 4 Salt. The salt requirement for normally growing finishing pigs is 0.45%. If salt drops from 0.45% to 0.2%, the pig's feed intake can fall by 20%, and weight gain is also reduced by 38%. 5 Sweeteners. Pigs have a highly developed sense of taste; the number of taste buds on their tongues is three times that of humans. Pigs like sweet tastes most, so when the feed contains a sweetener, feed intake rises.
Second, changes in feed odor also affect pig feed intake
The pig's sense of smell is exceptionally developed, so it is very sensitive to changes in feed odor, to the point of affecting feed intake. 1 Changes in flavoring agents. For example, switching between milk-fragrance, fishy, fish-fragrance and sweet-fragrance types, or leaving feed exposed to air for too long so the odor volatilizes and becomes weaker, will all affect feed intake. 2 Feed molding and spoilage. If feed is contaminated by mold, the feed becomes moldy and develops a musty taste; both in odor and palatability this will reduce the pig's feed intake. 3 Feed rancidity. When the ambient temperature is high or feed is stored for a long time, the crude fat in the feed oxidizes and turns rancid, producing what we commonly call a rancid odor, which reduces feed intake. 4 Different types of oils and fats. For example, adding soybean oil, corn oil, etc. to feed gives different odors; if these change, feed intake will be affected. 5 The effect of the special odors of other raw materials on the feed. For example, the amount of fish meal and its quality.
Third, certain feed ingredients directly affect the pig's physiological responses, reducing its feed intake
1 Amino acids. Insufficient or unbalanced amino acids in the feed have a relatively large effect on the pig's feed intake. Trials have shown that the pig's feed intake rises as the lysine level in the feed increases, but after reaching a certain point feed intake tends to decline. 2 Minerals. Deficiency of zinc and phosphorus in the feed, and excess calcium, manganese, iodine and iron, will all cause poor appetite in pigs. 3 Vitamins. Deficiency of B1, B2, B12, niacin and pantothenic acid will all reduce piglet feed intake. For example, insufficient B1 affects the tricarboxylic acid cycle in the pig's body, causing propionic acid to accumulate in large amounts in the body, damaging the digestive tract system and affecting appetite. 4 Antibiotics. A large number of trials have proven that adding a small amount of antibiotics to the pig diet can increase the pig's feed intake by 7%-15%. 5 Water. Water is the source of life, and water is also an essential substance for transporting nutrients. In the early stage of water deprivation, the pig's appetite clearly declines, and it especially dislikes eating dry mash. As dehydration increases, the pig's appetite may be completely lost. 6 Energy. Feed with a high energy value gives low feed intake; conversely, low energy value gives high feed intake. In addition, some pig diseases such as parasitic diseases, colds, gastroenteritis, etc., changes in pig house temperature, and moving groups, merging pens, changing feed, and vaccination procedures during pig raising will all affect the pig's feed intake
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Not bad, quite detailed!!!
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Yes, it really is good material, worth learning from
--------------------------------------
I've read it, not bad, oh great
--------------------------------------
Bump!
Quite comprehensive, learning from it
--------------------------------------
Although antibiotics are useful, it's still best to use them as little as possible!
--------------------------------------
Quite comprehensive, worth bumping up.
--------------------------------------
At present some drugs are added to feed
Their unpleasant taste or antagonistic effects with other nutrients
also affect taste and feed intake
--------------------------------------
I've read it, not bad, oh great
--------------------------------------
Great, learned something
--------------------------------------
Helpful. Is the salt a pig needs 0.45% of its own body weight?
--------------------------------------
Looks good, hehe
1 Dry versus wet issue. There are currently three types of feed used for pigs, namely: dry mash, wet mash (water-to-feed ratio 1:1) and slop. According to trials, the wet mash feeding method gives the best feed intake, while slop is the worst. 2 Particle size. The ideal corn particle size is 0.8 mm-1.5 mm. If it is too coarse, feed utilization declines and waste occurs; if it is too fine, over time it may cause digestive tract ulcers, which is harmful to health, and at the same time too fine a feed also reduces palatability, thereby affecting feed intake. 3 Crude fiber content level. If the crude fiber content in the feed exceeds 6%, the pig's feed intake declines. 4 Salt. The salt requirement for normally growing finishing pigs is 0.45%. If salt drops from 0.45% to 0.2%, the pig's feed intake can fall by 20%, and weight gain is also reduced by 38%. 5 Sweeteners. Pigs have a highly developed sense of taste; the number of taste buds on their tongues is three times that of humans. Pigs like sweet tastes most, so when the feed contains a sweetener, feed intake rises.
Second, changes in feed odor also affect pig feed intake
The pig's sense of smell is exceptionally developed, so it is very sensitive to changes in feed odor, to the point of affecting feed intake. 1 Changes in flavoring agents. For example, switching between milk-fragrance, fishy, fish-fragrance and sweet-fragrance types, or leaving feed exposed to air for too long so the odor volatilizes and becomes weaker, will all affect feed intake. 2 Feed molding and spoilage. If feed is contaminated by mold, the feed becomes moldy and develops a musty taste; both in odor and palatability this will reduce the pig's feed intake. 3 Feed rancidity. When the ambient temperature is high or feed is stored for a long time, the crude fat in the feed oxidizes and turns rancid, producing what we commonly call a rancid odor, which reduces feed intake. 4 Different types of oils and fats. For example, adding soybean oil, corn oil, etc. to feed gives different odors; if these change, feed intake will be affected. 5 The effect of the special odors of other raw materials on the feed. For example, the amount of fish meal and its quality.
Third, certain feed ingredients directly affect the pig's physiological responses, reducing its feed intake
1 Amino acids. Insufficient or unbalanced amino acids in the feed have a relatively large effect on the pig's feed intake. Trials have shown that the pig's feed intake rises as the lysine level in the feed increases, but after reaching a certain point feed intake tends to decline. 2 Minerals. Deficiency of zinc and phosphorus in the feed, and excess calcium, manganese, iodine and iron, will all cause poor appetite in pigs. 3 Vitamins. Deficiency of B1, B2, B12, niacin and pantothenic acid will all reduce piglet feed intake. For example, insufficient B1 affects the tricarboxylic acid cycle in the pig's body, causing propionic acid to accumulate in large amounts in the body, damaging the digestive tract system and affecting appetite. 4 Antibiotics. A large number of trials have proven that adding a small amount of antibiotics to the pig diet can increase the pig's feed intake by 7%-15%. 5 Water. Water is the source of life, and water is also an essential substance for transporting nutrients. In the early stage of water deprivation, the pig's appetite clearly declines, and it especially dislikes eating dry mash. As dehydration increases, the pig's appetite may be completely lost. 6 Energy. Feed with a high energy value gives low feed intake; conversely, low energy value gives high feed intake. In addition, some pig diseases such as parasitic diseases, colds, gastroenteritis, etc., changes in pig house temperature, and moving groups, merging pens, changing feed, and vaccination procedures during pig raising will all affect the pig's feed intake
--------------------------------------
Not bad, quite detailed!!!
--------------------------------------
Yes, it really is good material, worth learning from
--------------------------------------
I've read it, not bad, oh great
--------------------------------------
Bump!
Quite comprehensive, learning from it
--------------------------------------
Although antibiotics are useful, it's still best to use them as little as possible!
--------------------------------------
Quite comprehensive, worth bumping up.
--------------------------------------
At present some drugs are added to feed
Their unpleasant taste or antagonistic effects with other nutrients
also affect taste and feed intake
--------------------------------------
I've read it, not bad, oh great
--------------------------------------
Great, learned something
--------------------------------------
Helpful. Is the salt a pig needs 0.45% of its own body weight?
--------------------------------------
Looks good, hehe