The stage of weaning to breeding is an important aspect of breeding pig management. This stage prepares for estrus and breeding of sows. Therefore, special attention should be given to feeding and management. The following article from Zhengda is the experience of feeding and management of large-scale pig farms during this period of time. It is worth learning from us.
1 Pregnancy and lactation management have a significant impact on sows’ weaning to breeding intervals
Lactation period: Shortening the lactation period will extend weaning to the breeding interval.
Feeding during lactation: The loss of body weight during the lactation period extends the period between weaning and mating, so it is necessary to feed a large amount of nutrient-rich lactation feed during the late period of lactation.
Feed intake from weaning to pre-breeding: High feed intake can reduce weaning to breeding intervals, increase ovulation (especially for first-time sows) and increase conception rates.
Contact with boars: Sows should be kept near boars or contact with boars on a daily basis.
Mixed groups: Increased stress stimuli but may cause some damage.
Houses: There should be enough room for the sows to estrus in the group breeding period.
Temperature: The lowest critical temperature of the sows in the cement leaking pigs was 20°C when the 32.5MJ digestive energy was consumed on the same day, and 15°C when there were straws in the group, and the low temperature would inhibit the estrus.
Light: Actually, sows need 50 lux of light (in order to see the newspapers as appropriate), use natural light as much as possible, and the lack of artificial light to keep the light for 16 hours/day.
1.1 Weaning days
The age of weaning depends on the conditions of the nursery, management, and the quality of the feed that can replace breast milk. Early weaning has become a feature of the SEW (isolated weaning) system, and weaning is normal in 17–18 days, and early weaning can have a The number of bred and mating results have an impact.
The choice of weaning days depends on the size of the herd and personal preferences. In pig farms often wean off on Wednesday or Thursday, so that most breedings will be in the middle of the next week and not on the weekends. Weaning was better on Wednesday because most of the farrowings were concentrated on Thursdays and Fridays (after 114 days) because only a few pigs were bred on Sunday. However, large-scale farms (above 1000 sows) are weaned twice a week, while extra-large farms can be weaned daily.
1.2 Weaning procedures
The objective of the weaning program is to minimize the stress on the sow piglets and staff through a proper schedule. The following is a typical weaning procedure:
Weaned piglets were first removed and sows were removed.
Quietly sow the bred to the breeding room or out of the area.
It is advisable to have a boar to be able to see, hear and hear the boar, and it is best to have nose-to-nose contact.
When feeding in the slats of a leaky seam or solid concrete floor, the sheer temperature should be maintained at 20°C, and the sheer temperature of the bedding can be reduced to 15°C.
The following points apply to group systems:
Each sow needs a minimum of 2 square meters of housing, reducing stress and comforting housing helps shorten weaning to breeding intervals.
Weaning was based on sow body type and body condition.
A boar and weaned sow are fed in the same column for 1-2 days to help gregarious.
Mixed communities should have evacuation sites.
1.3 Feeding after weaning
The aim of rearing sows after weaning is to allow sows to produce as many healthy eggs as possible. High levels of feeding produce more healthy eggs, so weaned sows are free to feed, and wet mixes will help increase the number of healthy eggs. Eating.
Weaning sows can also feed sows that are in poor condition (especially primiparous sows) and help stimulate estrus.
In order to interrupt breastfeeding, there is no need to limit feeding after weaning.
Weaned sows should be injected with multidimensional elements (A, D, E) when entering the breeding house. From the weaning to the farm where the breeding interval is problem, 200g of glucose can be supplied every day from 7 days before weaning until breeding.
Editor's Note:
It has been suggested that the sows should be fed a few days before weaning in order to prevent mastitis. However, nutrition from weaning to estrus is very important, because only sows that reach certain levels of broil are suitable for breeding, so do you want to limit feeding? Determined according to sow opinion. First, the sow has self-regulatory capacity. After weaning, the breast expands due to the secretion of milk. When the secretion and reabsorption of milk are balanced, the nursing process will gradually stop.
Sows are generally weaned around.
1 Pregnancy and lactation management have a significant impact on sows’ weaning to breeding intervals
Lactation period: Shortening the lactation period will extend weaning to the breeding interval.
Feeding during lactation: The loss of body weight during the lactation period extends the period between weaning and mating, so it is necessary to feed a large amount of nutrient-rich lactation feed during the late period of lactation.
Feed intake from weaning to pre-breeding: High feed intake can reduce weaning to breeding intervals, increase ovulation (especially for first-time sows) and increase conception rates.
Contact with boars: Sows should be kept near boars or contact with boars on a daily basis.
Mixed groups: Increased stress stimuli but may cause some damage.
Houses: There should be enough room for the sows to estrus in the group breeding period.
Temperature: The lowest critical temperature of the sows in the cement leaking pigs was 20°C when the 32.5MJ digestive energy was consumed on the same day, and 15°C when there were straws in the group, and the low temperature would inhibit the estrus.
Light: Actually, sows need 50 lux of light (in order to see the newspapers as appropriate), use natural light as much as possible, and the lack of artificial light to keep the light for 16 hours/day.
1.1 Weaning days
The age of weaning depends on the conditions of the nursery, management, and the quality of the feed that can replace breast milk. Early weaning has become a feature of the SEW (isolated weaning) system, and weaning is normal in 17–18 days, and early weaning can have a The number of bred and mating results have an impact.
The choice of weaning days depends on the size of the herd and personal preferences. In pig farms often wean off on Wednesday or Thursday, so that most breedings will be in the middle of the next week and not on the weekends. Weaning was better on Wednesday because most of the farrowings were concentrated on Thursdays and Fridays (after 114 days) because only a few pigs were bred on Sunday. However, large-scale farms (above 1000 sows) are weaned twice a week, while extra-large farms can be weaned daily.
1.2 Weaning procedures
The objective of the weaning program is to minimize the stress on the sow piglets and staff through a proper schedule. The following is a typical weaning procedure:
Weaned piglets were first removed and sows were removed.
Quietly sow the bred to the breeding room or out of the area.
It is advisable to have a boar to be able to see, hear and hear the boar, and it is best to have nose-to-nose contact.
When feeding in the slats of a leaky seam or solid concrete floor, the sheer temperature should be maintained at 20°C, and the sheer temperature of the bedding can be reduced to 15°C.
The following points apply to group systems:
Each sow needs a minimum of 2 square meters of housing, reducing stress and comforting housing helps shorten weaning to breeding intervals.
Weaning was based on sow body type and body condition.
A boar and weaned sow are fed in the same column for 1-2 days to help gregarious.
Mixed communities should have evacuation sites.
1.3 Feeding after weaning
The aim of rearing sows after weaning is to allow sows to produce as many healthy eggs as possible. High levels of feeding produce more healthy eggs, so weaned sows are free to feed, and wet mixes will help increase the number of healthy eggs. Eating.
Weaning sows can also feed sows that are in poor condition (especially primiparous sows) and help stimulate estrus.
In order to interrupt breastfeeding, there is no need to limit feeding after weaning.
Weaned sows should be injected with multidimensional elements (A, D, E) when entering the breeding house. From the weaning to the farm where the breeding interval is problem, 200g of glucose can be supplied every day from 7 days before weaning until breeding.
Editor's Note:
It has been suggested that the sows should be fed a few days before weaning in order to prevent mastitis. However, nutrition from weaning to estrus is very important, because only sows that reach certain levels of broil are suitable for breeding, so do you want to limit feeding? Determined according to sow opinion. First, the sow has self-regulatory capacity. After weaning, the breast expands due to the secretion of milk. When the secretion and reabsorption of milk are balanced, the nursing process will gradually stop.
Sows are generally weaned around.
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