Posted by Mark on March 27, 2008, 9:39 pm, in reply to "Paylean in gilts"
216.139.102.187
Hugh,
Good question, and I can only speak from my limited experience. I really don't know the "science" as to why, but paylean is labeled "Not for use in breeding swine" and it doesn't seem to outline the side effects on the product I have seen. I bought a pair of gilts once that supposedly were not to have ever been fed paylean, although I knew the breeder used it on his boars. I later learned from an employee of the breeder that the gilts had in fact been given a small amount of paylean.
In the end, one never would breed. She cycled irregularly making it difficult to breed her AI, so she was serviced naturally by a mature boar that we used on other sows successfully. She never did stick. The other bred after several attempts and had only four pigs, so we shipped her as well, and have never again purchased from that breeder.
Sure, we have had the same problem with gilts we raised ourselves from time to time. However, this seemed very coincidental considering all our other gilts and sows bred fine and had big litters that farrowing, and only the two exposed to paylean had any problems. I believe it impacts the gilts ability to breed, affecting their reproductive system in some way. My guess is that it is irreversible, so it would not be any better in subsequent litters. As for milking, I have no clue. However, I would like to know if anyone has hard facts to answer your question with, and would like to better understand the impact of paylean on breeding animals.
Good Question!
Mark
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