MORPHOMETRIC EVALUATION OF CERVIX AND ITS INFLUENCE ON INTRACERVICAL PASSAGE OF INSEMINATION PIPETTE IN NATIVE SHEEP

SATYA PRASAD, B

MORPHOMETRIC EVALUATION OF CERVIX AND ITS INFLUENCE ON INTRACERVICAL PASSAGE OF INSEMINATION PIPETTE IN NATIVE SHEEP

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D240.pdf (4.59 MB)

Date

2017-06

Authors

SATYA PRASAD, B

Publisher

SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIA

Abstract

ABSTRACT: Morphometric evaluation of native sheep genitalia from slaughter house was carried out and biometry revealed a significant difference (P<0.01) was observed between the size of ovaries and uterus in ewe lambs and adult ewes where as no significant difference (P>0.05) was observed in these parameters between the adult ewes during follicular and luteal phases. The mean length (cm) and diameter (cm) of cervix of ewe lambs, adult ewes during follicular and luteal phases in present study were 2.94±0.13 and 0.81±0.05; 5.23±0.11 and 1.04±0.03 and 4.83±0.12 and 0.9±0.03 cm, respectively. The predominant type of external os in ewe lambs was papilla, while in adult ewes it was rose. The mean depth of penetration (cm) and number of cervical folds recorded in ewe lambs, adult ewes during follicular and luteal phases were 0.75±0.03, 3.10±0.21 and 0.87±0.05 and 3.30±0.12, 3.92±0.07 and 4.00±0.00, respectively. The occurence of grade 1 cervix was more in ewe lambs and adult ewes with least occurence of grade 3 while the occurence of grade 2 was intermediate with a similar trend for average depth of penetration for cervix. In the present study the measurements of the cervical moulds of ewe lambs and adult ewes revealed a significant difference (P<0.01) in the length (cm), weight (gm), number of folds, height of fold, diameter of fold (cm), internal diameter of fold (cm) and distance from os to folds (cm) between the ewe lambs and adult ewes. From the current study it was concluded that the alignment of the second or third cervical ring, in relation to the first ring was the principal determinant of depth of penetration and the major impediment to transcervical AI. Thus, it was opined that application of transcervical AI and ET could be practically possible at ages greater than 4 years, or at 3-4 years of age.