How to raise lactating sows? Nutritional requirements and feeding management key points
Nutritional requirements and feeding management of lactating sows
(Agricultural Wealth Network) This post was last edited by Breeding Female Champion on 09-11-9 13:06
Because lactating sows secrete a large amount of milk, their nutritional requirements are far higher than those of pregnant sows; to increase the nutrient intake of lactating sows, a highly nutritious diet is needed, and feed intake should be increased as much as possible.
It is best to give first-parity lactating sows and multiparous lactating sows different diets. Pig farming technology nutritional standards for first-parity lactating sow diets: digestible energy 3300 kcal/kg, crude protein 17%, lysine 0.9% or more, calcium 0.9%, total phosphorus 0.6% or more; nutritional standards for multiparous sows: digestible energy 3200 kcal/kg, crude protein 16%, lysine 0.8% or more, calcium 0.85%, total phosphorus 0.6%; in addition, they should also contain comprehensive and sufficient vitamins and trace elements. To achieve this nutritional level in the diet, high-quality raw materials must be selected. In high-temperature summer seasons, when the feed intake of lactating sows declines, adding oil to the diet to increase nutrient supply is a good method.
The appropriate feed intake of lactating sows can be estimated by the following formula:
Appropriate feed intake of lactating sows (kg) = 1.5 + 0.5 x number of piglets being nursed
For a lactating sow nursing 10 piglets, the theoretical daily feed intake should reach 6.5 kg to ensure secretion of sufficient milk for the piglets' needs, without excessive body weight loss that would affect the reproductive performance of the next litter. If the sow's feed intake is too low, the following methods can be used:
1. Increase the number of feedings.
2. Use the wet feeding method.
3. Lower the temperature inside the pig house (but pay attention to the temperature for the piglets).
4. Feed high-energy feed.
5. Provide sufficient drinking water.
6. During feeding time, try as much as possible to let the sow stand up to eat.
II. Feeding management of lactating sows
1. One week before farrowing, the sow enters a disinfected farrowing room; prepare farrowing supplies and set up infrared heat lamps.
2. After entering the farrowing room, gradually reduce the feeding amount according to the body condition of the lactating sow; for those in poorer body condition, reduce feed slightly less or not at all.
3. Pay attention to observing every sign of the sow's clinical signs: (1) One week before farrowing, the vulva is red and swollen, and both sides of the tail root sink inward, commonly called "collapsed hips"; about 1 day before farrowing, milk can be squeezed from the teats; (2) 6-8 hours before farrowing, local breeds carry straw in their mouths to make a nest; introduced breeds use their mouths to root at the ground or use their front feet to paw the ground, are restless, walk back and forth, and defecate and urinate frequently.
4. A dedicated person should watch during the delivery process. The entire delivery process lasts 14 hours, generally producing 1 piglet every 5-25 minutes. After the placenta is expelled, it should be removed immediately to prevent the sow from eating the placenta and then eating the piglets. For dystocia, 20-30 units of oxytocin should be injected intramuscularly, and a cardiotonic injection should be given at the same time. If no piglet is produced after half an hour, manual assistance is needed: after disinfecting the arm, insert it into the birth canal and remove the large piglet with abnormal position. If the birth canal is too narrow, a veterinarian should be asked to perform a cesarean section.
5. Do not feed feed on the day of farrowing; supply bran salt water or bran electrolyte water, then gradually increase the amount of feed. Within 1 week, increase feed intake to the highest level, then allow free feeding, feeding 3 times a day, and increase the feed intake of lactating sows as much as possible. It is strictly forbidden to supply moldy or spoiled feed. If the sow has poor appetite after farrowing, 3 or 4 liang of vinegar mixed with 1 raw egg can be fed to her, which can increase the sow's appetite in a short period.
6. Supply uninterrupted clean drinking water, keep the farrowing room clean and hygienic, and prevent the occurrence of mastitis and agalactia. Once mastitis occurs, massage the udder with a dry or wet cloth and squeeze out the milk. Squeeze 4 or 5 times a day for 3 days, until the udder becomes soft and wrinkles appear on the skin. If the udder becomes hard and the squeezed milk is thick, antibiotics should also be injected to reduce inflammation.
7. Three days before weaning, gradually reduce the feeding amount; on the day of weaning, do not feed or feed less. Only after milk secretion gradually decreases 2 or 3 days after weaning may the feed amount be increased, and estrus induction feeding may begin.
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Thanks for sharing
--------------------------------------
Thanks for sharing
--------------------------------------
Thanks for sharing
Because lactating sows secrete a large amount of milk, their nutritional requirements are far higher than those of pregnant sows; to increase the nutrient intake of lactating sows, a highly nutritious diet is needed, and feed intake should be increased as much as possible.
It is best to give first-parity lactating sows and multiparous lactating sows different diets. Pig farming technology nutritional standards for first-parity lactating sow diets: digestible energy 3300 kcal/kg, crude protein 17%, lysine 0.9% or more, calcium 0.9%, total phosphorus 0.6% or more; nutritional standards for multiparous sows: digestible energy 3200 kcal/kg, crude protein 16%, lysine 0.8% or more, calcium 0.85%, total phosphorus 0.6%; in addition, they should also contain comprehensive and sufficient vitamins and trace elements. To achieve this nutritional level in the diet, high-quality raw materials must be selected. In high-temperature summer seasons, when the feed intake of lactating sows declines, adding oil to the diet to increase nutrient supply is a good method.
The appropriate feed intake of lactating sows can be estimated by the following formula:
Appropriate feed intake of lactating sows (kg) = 1.5 + 0.5 x number of piglets being nursed
For a lactating sow nursing 10 piglets, the theoretical daily feed intake should reach 6.5 kg to ensure secretion of sufficient milk for the piglets' needs, without excessive body weight loss that would affect the reproductive performance of the next litter. If the sow's feed intake is too low, the following methods can be used:
1. Increase the number of feedings.
2. Use the wet feeding method.
3. Lower the temperature inside the pig house (but pay attention to the temperature for the piglets).
4. Feed high-energy feed.
5. Provide sufficient drinking water.
6. During feeding time, try as much as possible to let the sow stand up to eat.
II. Feeding management of lactating sows
1. One week before farrowing, the sow enters a disinfected farrowing room; prepare farrowing supplies and set up infrared heat lamps.
2. After entering the farrowing room, gradually reduce the feeding amount according to the body condition of the lactating sow; for those in poorer body condition, reduce feed slightly less or not at all.
3. Pay attention to observing every sign of the sow's clinical signs: (1) One week before farrowing, the vulva is red and swollen, and both sides of the tail root sink inward, commonly called "collapsed hips"; about 1 day before farrowing, milk can be squeezed from the teats; (2) 6-8 hours before farrowing, local breeds carry straw in their mouths to make a nest; introduced breeds use their mouths to root at the ground or use their front feet to paw the ground, are restless, walk back and forth, and defecate and urinate frequently.
4. A dedicated person should watch during the delivery process. The entire delivery process lasts 14 hours, generally producing 1 piglet every 5-25 minutes. After the placenta is expelled, it should be removed immediately to prevent the sow from eating the placenta and then eating the piglets. For dystocia, 20-30 units of oxytocin should be injected intramuscularly, and a cardiotonic injection should be given at the same time. If no piglet is produced after half an hour, manual assistance is needed: after disinfecting the arm, insert it into the birth canal and remove the large piglet with abnormal position. If the birth canal is too narrow, a veterinarian should be asked to perform a cesarean section.
5. Do not feed feed on the day of farrowing; supply bran salt water or bran electrolyte water, then gradually increase the amount of feed. Within 1 week, increase feed intake to the highest level, then allow free feeding, feeding 3 times a day, and increase the feed intake of lactating sows as much as possible. It is strictly forbidden to supply moldy or spoiled feed. If the sow has poor appetite after farrowing, 3 or 4 liang of vinegar mixed with 1 raw egg can be fed to her, which can increase the sow's appetite in a short period.
6. Supply uninterrupted clean drinking water, keep the farrowing room clean and hygienic, and prevent the occurrence of mastitis and agalactia. Once mastitis occurs, massage the udder with a dry or wet cloth and squeeze out the milk. Squeeze 4 or 5 times a day for 3 days, until the udder becomes soft and wrinkles appear on the skin. If the udder becomes hard and the squeezed milk is thick, antibiotics should also be injected to reduce inflammation.
7. Three days before weaning, gradually reduce the feeding amount; on the day of weaning, do not feed or feed less. Only after milk secretion gradually decreases 2 or 3 days after weaning may the feed amount be increased, and estrus induction feeding may begin.
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Thanks for sharing
--------------------------------------
Thanks for sharing
--------------------------------------
Thanks for sharing