THE PHILIPPINE WATER BUFFALO

*Abstracts of Completed Researches, 1881-1995 PCC-
DA, UPLB. Also in OED-PCC-DA Abstracts: Water
Buffalo Researches in the Philippines 1981-1995 p. 48.
Also in the Proceedings of the 35 th Annual Convention of
the Philippine Society of Animal Science (PSAS), Pasay
City, Metro Manila, Philippines, 1998. pp. 29-41and in the
Philippine Journal of Veterinary and Animal Science, 25
(1): 25-34 (1999).
A-26
BIOMETRY AND PRELIMINARY HISTOLOGICAL
STUDY OF THE UTERUS AND UTERINE TUBE OF
SEXUALLY MATURE NON-PREGNANT PHILIPPINE
BUFFALOES (Bubalus bubalis)*
E.R. Interior, Student
Biometry and preliminary histological study on the uterus
and uterine tubes of 20 newly slaughtered non-pregnant
Philippine carabao was conducted. The results of the
study support Torres’ findings that the Philippine carabao
reproductive organs are smaller than other buffalo breeds.
Microscopic measurements obtained indicated that the
histologic structures of both native and other buffalo breeds
are the same. The only difference is that the muscularis of
the Philippine carabao was slightly thicker than other breeds
and the pyometrin of Philippine carabao was slightly thinner
that the other breeds. Lack of records on the nutrition,
breeding and nutritional history of the animals is the limiting
factor in attaining significant results of the study.
Keywords: Philippine carabao, non-pregnant, uterus,
biometry, histologic structures
*Undergraduate Thesis, College of veterinary Medicine,
University of the Philippines, Diliman, Quezon City, 1979.
A-27
MICROSCOPIC ANATOMY OF THE OVARY OF
SEXUALLY MATURE NON-PREGNANT PHILIPPINE
WATER BUFFALO (Bubalus bubalis L.) WITH
EMPHASIS ON NORMAL AND ATRETIC FOLLICLES*
I. M. Jagmis, Student
Ovaries from 12 apparently healthy, non-pregnant Philippine
water buffaloes were collected and processed routinely for
histological examination. They were grouped according to
age (7-10 and 11-14 years old). The study revealed that
the size and weight of the ovary were not affected by age
and ovary (P>0.05). It was smaller but heavier compared
to that of foreign breeds of buffalo and cattle. The microscopic
anatomy of the ovary of the Philippine water buffalo was
ANATOMY
similar to cattle and other breeds of buffalo except for the
absence of elastic connective tissue fibers in the tunica
albuginea. Unilaminar (primordial, intermediate and primary)
and multilaminar (secondary, pre-antral and mature) ovarian
follicles were observed and classified according to their
follicular or granulose cell layer. One intermediate follicle
was seen to have two oocytes. The age of the animals and
the ovary did not affect the population of normal and atretic
follicle (P>0.05). Atretic follicles were seen in different
stages of degeneration. Except for the intermediate follicles
that were bigger (P< 0.05) in the right ovary, no significant
difference was observed in the sizes of primordial and
primary follicles. The follicular cells of the unilaminar follicles
in the right ovary were more numerous than those in the
left (P