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CW, eta1. LargeplasmidsinavianEscherichiacoliEJ]. AvianDis ,1996,40:927-930. [13] SamanthaJ, Pfaff-McDonough, ShelleyMHorne, eta1. Complementresistance-relatedtraitsamongEscherichiacoliisolatesfromapparentlyhealthybirdsandbirdswithcolibacillosisl_J]. AvianDis ,2000,44:23-33. [14] WooleyRE, SpearsKR, BrownJ,[link widoczny dla zalogowanych], eta1. CharacteristicsofconjugativeR-plasmidsfrompathogenicavianEscherichiacolil_JJ. AvianDis ,1992,36:348-352. [15] Horne, Pfaff-McDonough, GiddingsCW, eta1. CloningandsequencingoftheissgenefromavirulentavianEscherichiacoh '[-J]. AvianDis, 2000,44 (1) :179-184. [16] StevenLFoley, ShelleyMHorne, CatherineWGiddings, eta1. IssfromaVirulentAvianEscherichiacoli [J]. A, 'ianDis. 2000.44:] 85 I] 9】. Treatment of fetal subcutaneous method cut case of cows giving birth Dingzu Huai (dynamic departments of Anhui Technical Teachers College, Fengyang 233100) in clinical cows giving birth is more common in clinical practice, some special cases of dystocia, must be based on the specific circumstances of cases, detailed analysis to identify a viable solution. The author met in March 2004 a case of cows giving birth,[link widoczny dla zalogowanych], amputation can not be directly implemented in the case law to cut fetal skin and smooth out the fetus. Reported below. 1 introduces the field of 184 cases of cows, weight 400kg, 1 child, was at 2 o'clock on March 2, 2004 birth signs appear to 12:00 still no fetal outcomes. After examination, the cervix opening a good cow, the fetus has died, potential fetal, fetal position, fetal to all normal, but the larger individuals. Veterinary officer with responsibility for cows effort, after repeated traction 45min, before the fetal head and chest out, then pull but no progress. After examination, the hip baby cow stuck in the pelvic ilium on both sides of the entrance. After repeated restoration, pulling out still no effect. Decided to cut fetal subcutaneous method. Act 2 of subcutaneous fetal cut through with a scalpel from the fetal skin incision to the ventral midline, exposing the fetus at the cow vulva skin completely stripped, and then stripped from the surrounding within the vagina until the date can not be stripped, and then peel the skin the front of the body after transection with a wire saw, preserving intact skin, with obstetric quite arrived into the abdominal cavity of the fetus, the rest of the uterus into the rear to about 15cm,[link widoczny dla zalogowanych], so that within the birth canal to make room for those patients Hand out into the fetus through the birth canal end of the root. Saw ready to get inside the line at one end with gauze wrapped fingers pinched in between, from fetuses delivered to the end of the dorsal root, the hand was pulled back, the other hand extended from the abdomen to the fetus between the two hind legs to Pull one end of the wire saw, then cut into both ends of the court, the fetal hindquarters vertical cut open, can successfully come up with the rest of the cows safe. 3 Experience in the head and neck and chest are cows delivered, but the hindquarters out of the case do not produce, in theory, patients should be taken to cut off limbs, but because of the smaller individual cows, pelvic diameter is relatively narrow when compared with the fetus large, the surgeon's arm can not reach into the uterus, the line can not be around to hind limb saw, only the Ministry of the fetus before transection, the left rear to push back to the womb,[link widoczny dla zalogowanych], cut off limbs is possible for patients, but this body bone The stump is easy to strain the birth canal and uterus, while leaving the skin off the body to overcome this shortcoming, the skin can leave a stump of bone torso wrapped well, so easy to damage the uterus and birth canal. This method is commonly used than the traction method and direct methods are superior to amputation, amputation is an ideal midwifery law.

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