Ovarian morphology and follicular fluid levels at different number of expressed estrus in Non-Descript native gilts / by John Lloyd J. Bayani.
Material type:
TextLanguage: English Publication details: Indang, Cavite : Cavite State University- Main Campus, 2019.Description: xiv, 63 pages : illustrations ; 28 cmContent type: - text
- unmediated
- volume
- 599.32 B34 2019
- College of Agriculture, Food, Environment and Natural Resources (CAFENR), Department of Animal Science
| Item type | Current library | Collection | Call number | Materials specified | URL | Status | Notes | Date due | Barcode |
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Theses / Manuscripts
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Ladislao N. Diwa Memorial Library Theses Section | Non-fiction | 599.32 B34 2019 (Browse shelf(Opens below)) | Link to resource | Room use only | T-8499 | 00011930 |
Thesis (Bachelor of Science in Agriculture Major in Animal Science) Cavite State University.
Includes bibliographical references.
College of Agriculture, Food, Environment and Natural Resources (CAFENR), Department of Animal Science
BAYANI, JOHN LLOYD J. Ovarian Morphology and Follicular Fluid Levels at Different Number of Expressed Estrus in Non-Descript Native Gilts. Undergraduate Thesis. Bachelor of Science in Agriculture major in Animal Science. Cavite State University, Indang, Cavite. June 2019. Thesis Adviser: Cristina F. Olo, Ph.D.
The study was conducted to evaluate the ovarian morphology and follicular fluid levels at different number of heat expressions in the non-descript native gilts by measuring the size and weight of the ovary, classifying the different follicles and corpus luteum and measuring the volume of follicular fluid. Relationship of corpus luteum with the length of uterine horn was also analyzed. The study was carried out on five nulliparous non-descript native pigs aged 6-9 months. The gilts were slaughtered based on the number of expressed estrus which were 1, 3, 5, 7, and 9.
Results showed that the gross measurements of the ovaries including length, width, thickness and weight vary among pigs with different number of heat expressions. The length of the ovaries ranged from 0.92 to 2.47 cm. The width ranged from 0.78 to 2.43 cm. The thickness ranged from 0.44 to 1.58 cm. And the weight ranged from 0.30 to 5.00 g.
The presence of the different follicles (primary, secondary, tertiary) differs among pigs with different number of heat expressions. The most number of primary follicles (<3 mm) at n= 32 were found on the ovaries of the gilt that expressed first estrus. While the most number of secondary follicle (3.1- 6 mm) at n= 21 were found on the ovaries of the gilt that had shown seven estruses. The most number of tertiary follicles (6.1- 9 mm) at n= 3 were obtained in ovary of the gilt that had shown five estruses. The volume of follicular fluid also differed among pigs with different number of heat expressions. The highest volume of follicular fluid at 0.13 m! was aspirated from the tertiary follicle in the right ovary of gilt that had shown five estruses.
The number of corpus luteum varies among pigs with different number of heat expressions. The highest number of active corpora lutea that was recorded in the left
ovary (n= 6) was acquired on the gilt that has shown three estruses. While the highest number of regressed corpora lutea that was observed in the right ovary (n= 6) was obtained on the gilt that has shown five estruses. The presence of corpus luteum was first observed in the gilt that has shown three estruses indicating that the animal can be bred at that stage. There was an increasing trend in the number of present of corpus luteum in the ovary as the number of heat expressions increases.
Results on the correlation of corpus luteum with uterine hom showed that the length of the uterine horns at any number of estrus expressions was too short to carry out
the soon to be fertilized ovulated eggs. It appears to be an important limiting factor to achieve a higher litter size.
Submitted to the University Library 09/23/2019 T-8499