Postpartum Ovarian Activity In Sahiwal- Friesian Cows Fed Different Levels Of Energy

Haji Mohd Adam, Azillah (1984) Postpartum Ovarian Activity In Sahiwal- Friesian Cows Fed Different Levels Of Energy. Masters thesis, Universiti Pertanian Malaysia.

[img] PDF
1533Kb

Abstract

Postpartum ovarian function was determined by milk progesterone radio immunoassay in 21 first - calf Sahiwal-Friesian cows assigned to one of three treatment groups designated as low , medium an d high energy level sen=7 ) . The progesterone concentrations in defatted milk were determined thrice weekly for 120 days postpartum. Mean interval to resumption of ovarian activity and t o forst ovulation was longest in the low energy group and short - est in t he high energy group . Using progesterone concentration of>1ng/ml as criteria for corpus luteum activity , first ovulation occurred at 37.7 ± 18.0,26.6 ±15.7 and 25.3 ± 8.4 days for low , medium and high energy groups , respectively. However , first estrus was observed at 28.0 ± 21.6,32.7+ 9.8 and 25.4+ 6.0 days , respectively.The percentages of silent estrus were 13.6 percent , 29.6 percent and 14.3 percent for low , medium and high energy groups , respectively , with a majority ( 46.7 percent ) detected during the initial postpartum estrous cycle .

Item Type:Thesis (Masters)
Subject:Cattle - Reproduction
Chairman Supervisor:Associate Professor Dr. Tan Hock Seng, PhD
Call Number:FPV 1984 1
Faculty or Institute:Faculty of Veterinary Medicine
ID Code:12261
Deposited By: Mohd Nezeri Mohamad
Deposited On:13 Jul 2011 07:55
Last Modified:07 Sep 2011 01:21

Repository Staff Only: item control page

Document Download Statistics

This item has been downloaded for since 13 Jul 2011 07:55.

View statistics for "Postpartum Ovarian Activity In Sahiwal- Friesian Cows Fed Different Levels Of Energy "


Universiti Putra Malaysia Institutional Repository

Universiti Putra Malaysia Institutional Repository is an on-line digital archive that serves as a central collection and storage of scientific information and research at the Universiti Putra Malaysia.

Currently, the collections deposited in the IR consists of Master and PhD theses, Master and PhD Project Report, Journal Articles, Journal Bulletins, Conference Papers, UPM News, Newspaper Cuttings, Patents and Inaugural Lectures.

As the policy of the university does not permit users to view thesis in full text, access is only given to the first 24 pages only.