Keyword Search:

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: Edit item detail

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 "