Background: Goat husbandry has been playing an important role in the economy of our country with special reference to milk, meat, manure and hide production. Bakerwali goat constitutes about 50% of the total goat population of J and K. The liver is an extremely important organ in the body of mammals performing numerous functions. The liver is much heavier in young animals than older animals as it atrophies with age. The present study has been planned to record the micrometrical data about the liver of Bakerwali goat during different age groups.
Methods: Liver samples were collected from slaughter houses of Nagrota in and around Jammu city of UT of J and K during 2019-20. The samples were divided into young (below 1 year), adult (2-3 years) and senile (4 years and above) as per the dentition of the goats. Six samples from each age group were collected. The micrometrical observations were recorded on H and E stained sections with the help of an ocular micrometer duly calibrated with stage micrometer.
Result: The capsule showed maximum thickness in adults followed by the young and senile age group. The maximum thickness of the capsule was seen at upper part of main lobe (UPOML) in the liver of young and adult whereas, in the senile group, the maximum thickness was seen at middle part of main lobe (MPOML). The diameter of the central vein showed the highest values in adults, followed by young and senile probably due to increased liver functions in adult. The mean values of length of hepatocytes ranged between 13.50 to 22.50 µm in all regions of the liver of irrespective of age groups. The mean values showed higher values in adult and senile age groups. The nuclear diameter of the hepatocytes ranged between 9.00 to 13.50 µm with mean values varying between 9.72±0.58 to 10.05±0.50 µm in all the three age groups. The maximum number of portal triads per field was seen at ventral part of main lobe (VPOML) in the senile group whereas the minimum number was observed at MPOML in the young group. In general, several portal triads per field were highest in the senile group followed by adult and young.
The present study was conducted on the liver of non-descript goats of Jammu region during 2019. The samples were divided into young (below 1 year), adult (2–3 years) and senile (4 years and above) age groups as per the dentition. Six samples from each age group were collected. The capsule showed maximum thickness in adult age group. Maximum thickness of capsule was seen at upper part of main lobe (UPOML) in the liver of young, adult and senile age group. The diameter of central vein showed highest values in adult, followed senile group probably due to increased liver functions in adult. Inter-central vein distance was maximum in adult age group followed by young and senile groups. The mean values of length of hepatocytes ranged between 13.50 to 22.50 µm in all regions of liver of irrespective of age groups. The mean values showed higher values in adult and senile age groups. The nuclear diameter of the hepatocytes ranged between 9.00 to 13.50 µm with mean values varying between 9.75±0.50 to 10.50±0.64 µm in all the three age groups. Number of liver lobules per field was maximum at MPOML in senile group (14.16±0.61) whereas minimum number was observed at CL in young (4.41±0.22). Maximum number of portal triads per field was seen at VPOML in senile group (5.16±0.32) whereas minimum number was observed at VPOML in young group (3.08±0.19). In general, number of liver lobules and portal triads per field was highest in senile group followed by adult and young.
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