Regression model and correlation analysis of different heart parameters of non-descript goats of Jammu region

The heart was triangular with convex anterior border and concave posterior border. The average weight of the heart was 182.58 ± 15.59 gm. Circumference of the heart was 18.87 ± 0.78 cm. The distance between right and left longitudinal grooves was 10.40 ± 0.36 cm anteriorly and 7.70 ± 0.33 cm posteriorly. Right and left longitudinal grooves did not reach the apex of the heart. The latero-medial width of the heart was 5.08 ± 0.12 cm whereas the antero-posterior width at coronary groove was 6.29 ± 0.41cm. The wall thickness was 0.33 ± 0.03 cm for left atrium and 0.38 ± 0.09 cm for the right atrium. Inter-ventricular septum was 1.31 ± 0.08 cm thick. Diameter of cranial vena cava (1.58 ± 0.06 cm) was slightly greater than the caudal vena cava (1.40 ± 0.06 cm). The circumference of pulmonary artery was 4.65 ± 0.51 cm with wall thickness of 0.30 ± 0.02 cm. Aorta had a circumference of 5.85 ± 0.14 cm, diameter of 1.88 ± 0.10 cm and wall thickness of 0.40 ± 0.03 cm. Descending part of aorta had a larger diameter than the ascending part. The circumference of ascending part and descending part was in approximation. Various biometrical parameters of the heart were analyzed statistically to observe the correlation between these parameters. The parameters that showed significant correlation (P<0.01 and 0.05) (both positive as well as negative) were analyzed for regression which was used to predict the value of dependent variable (unknown) from independent (known) variables.