Their problem could possibly be by reason of this micotoxina, Zearalenona (ZEA). This is mainly a micotoxina estrogénica of wide distribution and present in corn, although it is also possible to find it in wheat, barley, rice and sorghum, usually in low dose. They are produced by mushrooms of the gender such Fusarium as F. graminearum and F. moniliforme (Jury, 1989 FAO, 2003). The favorable conditions for their production are the high humidity and low temperatures, therefore it is more common to find toxicity situations in more temperate regions (Coulombe, 1993).
The ZEA, in spite of being very different structurally to the estrógeno, it possesses a strong activity estratogénica. It has been observed that he/she has a great likeness to estrógeno receivers in the uterus of rats as well as in that of sheep and heifers. Of all the species you tame, the sow in previous stage to the puberty is the most sensitive to the action of ZEA, being enough a concentration of 0,5 to 1 ppm to cause pseudo-estros and vaginal prolapso. The immature genital system of these animals suffers big changes when being exposed ZEA, those that include swelling of the vulva, increment of the size and weight of the vulva mammary dilation and, in extreme cases, vaginal and rectal prolapso. Also in mature sows (ciclando) an increase has been observed in the period inter-estros and seudopreñez. In pregnant females this micotoxina caused death neonatal, fetal mummification, you raise mortinatas, abortion, immobility of legs, abnormal return of the estro, among other effects.
Otherwise, he/she would have to see to part of the nutritional cause it can be infeciosa. For example, PSSR, Swinish classic Pest, Erisipela or another. He/she would have to see their vaccination program, possibly have a vaccination flaw. Although I believe that it is the first one, because if it was the second he/she would have mortality of pigs and other more things that you don't specify.
I hope this small recommendation finds the solution
we follow ourselves seeing
if I like it contacts.
|
|
PIG INDUSTRY FORUMS / Back to Pig Industry
Closed Discussion
/ Back to messages forums
Purchase and Sale of Livestock (Pigs)
See all...
