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Research
7.
Ovarian antral follicular dynamics in Ankamali pigs -
Sowmya Narayan, M Narayana Swamy, T. Veena
Vet World. 2011; 4(6): 264-265
doi:
10.5455/vetworld.4.264
Abstract
The present study was designed with the objective of
understanding the ovarian antral follicular dynamics
in Ankamali pigs, an indigenous south Indian breed
of pig, that derives its name from Ankamali block in
the Ernakulam district of Kerala, also found in
Karnataka, Tamil Nadu, parts of Maharashtra and
Andhra Pradesh. For the present study, the ovaries
were collected from apparently healthy, non
pregnant, cyclic and middle aged (2 to 5 years)
Ankamali pigs slaughtered at civil meat processing
and production centre, Frazer town, Bangalore during
the month of February to May 2010. The February
month was transition month from winter to summer and
the month of March, April and May were considered as
summer months. A total of 640 ovaries were collected
and the surface antral follicles on the ovaries were
classified into Group I (small, <3 mm), Group II
(medium, 3-6.9 mm) and Group III follicles (large,
7-12 mm) on the basis of their diameter. The results
of the present study revealed that the number of
Group I follicles were significantly (P<0.05) higher
compared to Group II and Group III follicles.
Similarly, Group II follicles were significantly
(P<0.05) higher compared to Group III follicles
during different months of observation. An attempt
was also made in the present study to find out the
approximate ratio between the small, medium and
large follicles wherein it was 7: 4:1 during the
month of February and March and it was 6: 5: 1
during the month of April and May. The ovarian
follicular dynamics established in the present study
during winter to summer transition month like
February and during summer months like March, April
and May shall throw some insights into the ovarian
physiology in Ankamali breed of pig.
Keywords:
Ovarian follicles, follicular dynamics, South Indian
Pig, Ankamali pigs
