Sow live vaccine injection timing: Does vaccination during pregnancy affect piglet antibodies?
Injection Timing of Live Vaccines in Sows (Does Injection During Pregnancy Affect Piglet Antibodies?)
Animal Husbandry People
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(1) How to get vaccinated properly!
1. Live vaccines that can cause reproductive disorders in pigs:
Administer (e.g. swine fever vaccine) when the sow is not pregnant
Why:
Because live vaccines that can cause reproductive disorders in pigs can cross the maternal blood-placental barrier into the embryo, if piglets are then injected with the same type of vaccine after birth, the piglets cannot produce antibodies well.
Which vaccine to administer and when depends on the disease situation at the pig farm.
？？？？？？？？？？？？？？？？？？
I don't understand that approach. For a farm with five hundred sows, at the very least you need vaccines for HC, PR, PPV, and JE, right. Are they all scheduled for after farrowing and before breeding during the lactation-to-breeding period??
I also want to know the answer to the livestock farmer's question, so I'll make a separate post for it.
Let's all discuss this.
--------------------------------------
On our farm, after farrowing we only vaccinate against pseudorabies, PRRS and classical swine fever. For Japanese encephalitis, sows that have already farrowed can skip it; generally it is given one month before mosquitoes appear!
--------------------------------------
Porcine parvovirus has a big impact on gilts. I heard that parous sows do not need the parvovirus vaccine. Does any teacher know why parous sows do not need the parvovirus vaccine? What is the principle behind it? I hope for your guidance, and I thank you in advance!!!!
--------------------------------------
On our farm, we generally vaccinate against parvovirus until the second litter.
I have read some reports saying that antibodies produced by a sow that has had a mild infection will protect her for life.
--------------------------------------
Many sources indicate that the immune mechanism of parvovirus disease differs from that of other viral diseases; after vaccination or natural infection, effective antibody levels can be maintained for several years, and gilts are more susceptible than sows that have farrowed.
--------------------------------------
Regarding parvovirus, if a sow that has already farrowed contracted parvovirus during her first litter, she will develop immunity by the second litter.
In addition, for classical swine fever vaccine, I strongly recommend using the lapinized attenuated classical swine fever vaccine. Its protective efficacy is stable. Indeed, China's lapinized attenuated classical swine fever vaccine is the best in the world.
--------------------------------------
So do you think the injection should be given during the open (non-pregnant) period or during pregnancy?
--------------------------------------
We administered the classical swine fever and foot-and-mouth disease vaccines on the day of weaning.
--------------------------------------
HC, PR, PPV, and JE are not given in every batch
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(1) How to get vaccinated properly!
1. Live vaccines that can cause reproductive disorders in pigs:
Administer (e.g. swine fever vaccine) when the sow is not pregnant
Why:
Because live vaccines that can cause reproductive disorders in pigs can cross the maternal blood-placental barrier into the embryo, if piglets are then injected with the same type of vaccine after birth, the piglets cannot produce antibodies well.
Which vaccine to administer and when depends on the disease situation at the pig farm.
？？？？？？？？？？？？？？？？？？
I don't understand that approach. For a farm with five hundred sows, at the very least you need vaccines for HC, PR, PPV, and JE, right. Are they all scheduled for after farrowing and before breeding during the lactation-to-breeding period??
I also want to know the answer to the livestock farmer's question, so I'll make a separate post for it.
Let's all discuss this.
--------------------------------------
On our farm, after farrowing we only vaccinate against pseudorabies, PRRS and classical swine fever. For Japanese encephalitis, sows that have already farrowed can skip it; generally it is given one month before mosquitoes appear!
--------------------------------------
Porcine parvovirus has a big impact on gilts. I heard that parous sows do not need the parvovirus vaccine. Does any teacher know why parous sows do not need the parvovirus vaccine? What is the principle behind it? I hope for your guidance, and I thank you in advance!!!!
--------------------------------------
On our farm, we generally vaccinate against parvovirus until the second litter.
I have read some reports saying that antibodies produced by a sow that has had a mild infection will protect her for life.
--------------------------------------
Many sources indicate that the immune mechanism of parvovirus disease differs from that of other viral diseases; after vaccination or natural infection, effective antibody levels can be maintained for several years, and gilts are more susceptible than sows that have farrowed.
--------------------------------------
Regarding parvovirus, if a sow that has already farrowed contracted parvovirus during her first litter, she will develop immunity by the second litter.
In addition, for classical swine fever vaccine, I strongly recommend using the lapinized attenuated classical swine fever vaccine. Its protective efficacy is stable. Indeed, China's lapinized attenuated classical swine fever vaccine is the best in the world.
--------------------------------------
So do you think the injection should be given during the open (non-pregnant) period or during pregnancy?
--------------------------------------
We administered the classical swine fever and foot-and-mouth disease vaccines on the day of weaning.
--------------------------------------
HC, PR, PPV, and JE are not given in every batch