QUALITATIVE AND QUANTITATIVE ANALYSES OF LUTEAL VASCULARITY DURING FIRST TRIMESTER OF PREGNANCY IN CROSSBRED COWS
2022
S, Satheshkumar | S, Raja | V, Prabaharan
The objective of the study was to analyze the qualitative and quantitative characteristics of luteal blood flow during the first trimester of pregnancy in crossbred cows. Sixty pregnant animals were ultrasonographically investigated during three stages of gestation viz., Stage I: 25 – 35 days; Stage II: 45 – 60 days and Stage III: 75 – 90 days. The intensity of luteal blood flow was assessed and quantitative parameters were recorded. Very high intensity of luteal vascularity was found in stage I indicative of active neo-vascularization. The values of Doppler indices were reduced in stage II when compared to stage I, indicating a lesser resistance and free flow of blood as the pregnancy advanced. Progressive increase in vascularity could be attributed to the increasing demand of the CL to meet out the endocrine activity and maintenance of pregnancy.
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