Age wise internal morphometrical studies on the heart of pre-natal non-descript sheep Sahu S.K.1,*, Mishra U.K.1, Sathapathy S.1, Nanda S.M.2 1Department of Veterinary Anatomy and Histology, College of Veterinary Sciences and Animal Husbandry, Odisha University of Agriculture and Technology, Bhubaneswar-751 003, Odisha, India 2Department of Veterinary and Animal Husbandry Extension, College of Veterinary Sciences and Animal Husbandry, Odisha University of Agriculture and Technology, Bhubaneswar-751 003, Odisha, India *Corresponding Author: S.K. Sahu, Department of Veterinary Anatomy and Histology, College of Veterinary Sciences and Animal Husbandry, Odisha University of Agriculture and Technology, Bhubaneswar-751 003, Odisha, India, Email: veterinaryanatomy9@gmail.com
Online Published on 8 February, 2024. Abstract Background Heart is the central organ of circulatory system that pumps blood into the blood vessels and performs many vital functions. Its development before birth must be studied to safeguard the animal from the occurrence and consequences of various developmental anomalies. The detailed morphometry of different internal parameters of heart especially in pre-natal sheep has not yet been reported. Methods The foeti of sheep were divided into two age groups viz. mid prenatal (51-100 days) and late prenatal (101 to 150 days) with fifteen animals in each age group. The various internal parameters were recorded by using digital weighing machine, graduated measuring cylinder, digital Vernier's calliper, non-stretchable nylon thread and graduated scale. The data recorded was statistically analysed by independent t test with IBM SPSS 25.0 version software. Result The average thickness of left ventricular wall of heart was measured as 2.85±0.15 mm and 4.28±0.07 mm in mid prenatal and late prenatal stages respectively with significant (p≤T0.01) differences between the ages. Similarly, the average diameter of left atrioventricular opening of heart was measured as 2.06±0.27 mm and 6.08±0.36 mm in mid prenatal and late prenatal stages respectively with significant (p≤T0.01) differences between the ages. The average length of septal papillary muscle in right ventricle was measured as 1.12±0.10 mm and 3.29±0.21 mm in mid prenatal and late prenatal stages respectively with significant (p≤T0.01) differences between the ages. Further, the average length of moderator band in heart was measured as 1.45±0.11 mm and 4.34±0.23 mm in mid prenatal and late prenatal stages respectively with significant (p≤T0.01) differences between the ages. Similarly, the average length of chordae tendinae in right ventricle of heart was measured as 0.97±0.0 9 mm and 3.50±0.34 mm in mid prenatal and late prenatal stages respectively with significant (p≤T0.01) differences between the ages. Top Keywords Age, Heart, Internal morphometry, Pre-natal, Sheep. Top |