POSTPARTUM UTERINE INVOLUTION IN PRIMIPAROUS AND PLURIPAROUS POLISH LONGWOOL SHEEP MONITORED BY ULTRASONOGRAPHY

The study was carried out on 29 primiparous and 22 pluriparous winter–lambing, suckling Polish Longwool sheep variety Kamieniecka. The completion of uterine involution was determined by means of transrectal ultrasonography. Parameters for the evaluation of uterine involution were the transversal diameter and the presence of uterine lumen. The results show that uterine involution was completed in the majority of ewes till day 35 postpartum. Furthermore, the results indicate that parity affected uterine involution. It was completed earlier in primiparous than in pluriparous ewes.

[1]  P. Wright,et al.  Involution and regeneration of the endometrium following parturition in the ewe , 2004, Cell and Tissue Research.

[2]  A. Jurczak,et al.  Ultrasonographic observation of postpartum uterine involution in the Polish Longwool sheep variety Kamieniecka , 2004 .

[3]  H. Bostedt,et al.  Ultrasonographic observations of the uterine regression in the ewe under different obstetrical conditions. , 2002, Journal of veterinary medicine. A, Physiology, pathology, clinical medicine.

[4]  C. Viñoles,et al.  Uterine involution time and ovarian activity in weaned and suckling ewes , 1996 .

[5]  R. Ungerfeld,et al.  Uterine involution and ovarian changes during early post partum in autumn-lambing Corriedale ewes. , 1993, Theriogenology.

[6]  O. J. Ginther,et al.  Research applications of ultrasonic imaging in reproductive biology. , 1992, Journal of animal science.

[7]  S. Milewski,et al.  Investigations of the course of post-partum period in the merino Polish sheep. IV. Shifts in the intercaruncular regions of uterus (observation in light microscope--LM and in scanning electron microscope--SEM). , 1991, Polskie archiwum weterynaryjne.

[8]  B. Buckrell Applications of ultrasonography in reproduction in sheep and goats , 1988 .

[9]  A. Penkowski,et al.  [Studies of the course of the postpartum period in Polish Merino sheep.I. Macromorphological studies of the ovary and uterus]. , 1988, Polskie archiwum weterynaryjne.

[10]  A. Okano,et al.  Ultrasonic observation of postpartum uterine involution in the cow. , 1987, Theriogenology.

[11]  Von H. Bostedt,et al.  Untersuchungen über den Einfluß verschiedener Haltungsbedingungen auf postpartale Regenerationsvorgange am Genitaltrakt von Milchkühen unter besonderer Berücksichtigung der Progesteronprofile , 1985 .

[12]  C. Hulet,et al.  Postpartum uterine and ovarian changes, and estrous behavior from lactation effects in normal and hormone treated ewes. , 1976, Theriogenology.

[13]  J. Bézard,et al.  LOW FERTILITY IN NURSING EWES DURING THE NON-BREEDING SEASON , 1975 .

[14]  van Niekerk Ch,et al.  Involution of the post partum uterus of the ewe. , 1972 .

[15]  W. Foote Some influences of lactation and hormone treatment on uterine changes in postpartum sheep. , 1971, Journal of animal science.