MORPHOMETRIC EVALUATION OF BLOOD PRESSURE REGULATING
ORGANS IN TEDDY GOATS (CAPRA HIRCUS)
IN RELATION TO AGE AND SEX
M. Shah, A. S. Qureshi*1,
S. Rehan1 and R. Hussain1
Department of Anatomy &
Histology, University of Arid Agriculture, Rawalpindi; 1Department of
Anatomy, University of Agriculture, Faisalabad, Pakistan
*Corresponding author:
anas_sarwar@hotmail.com
Abstract
In this study the heart, kidneys and adrenal glands of 36 teddy goats
(Capra
hircus)
of both sexes, divided in 3 age groups
viz. kids (6-12 months), adults (13-21 months) and old (22-24 months) were
collected after slaughter. Immediately after collection, absolute and relative
weights, length, width, thickness, circumference and volume of all organs were
recorded.Shape of the heart was cone
like and the coronary groove was filled with fat. None of the anatomical
parameters of the heart, kidneys and adrenal glands differed between male and
female goats, except that absolute weight of the right kidney and volume of
right and left kidneys were higher in males than in females (P<0.05). Absolute
and relative weights of the heart, volume, length, circumference, right atrial
wall thickness and right ventricle wall thickness were higher in old than in
kids or adult animals (P<0.05). No difference was seen in various anatomical
parameters between the right and the left kidneys. However, values of most of
the anatomical parameters were higher in old than in kids or adult goats
(P<0.05), except relative weight of the organ and thickness of medulla, which
did not differ among animals of three age groups. For adrenals, the absolute
weight and length of the left organ were higher than the right (P<0.05).
Similarly, absolute weight, length and width were higher in old than in kids
(P<0.05). It is conceivable from these findings
that goat has a stable cardiovascular system. The development of heart, kidneys
and adrenals showed an increase parallel to the advancing age to adjust with the
increasing blood pressure due to physiological development process. Sex,
however, played a secondary role.