Effect of supplemented versus nutritionally induced progesterone on conception rate in moderate yielding dairy cows
Other Title(s)
تأثير إعطاء البروجيستيرون مقارنة بنظام تغذية يحفز إنتاجية داخليا على نسبة العشار في الأبقار متوسطة الإدرار
Joint Authors
Ramun, A. A.
Nasif, A. R.
Serur, B. H.
Mansur, A. N.
Source
Kafr El-Sheikh Veterinary Medical Journal
Publisher
Kafr El-Sheikh University Faculty of Veterinary Medicine
Publication Date
2016-06-30
Country of Publication
Egypt
No. of Pages
22
Main Subjects
English Abstract
The present study included two experiments, the first experiment aimed to test if direct supplementation of P4 during post insemination period together with GnRH treatment on day 11post-isemination (PI) improve conception rate or not.
The second experiment aimed to test whether peri-insemination feeding on fatty acids supplemented feed could improve conception rate or not.
Cows in experiment 1 (n= 96) were fed on the basal diet (B) and randomly allotted into 3 groups vz: G1B (n=34) whereas cows received intravaginal insertion of CIDR (controlled internal drug release device) on Day 1 PI whereas Day 0 was the day of insemination plus single I/M injection of GnRHa (0.02 mg buserelin, Receptal) on Day 11 PI.
The second group G2B (n=30) received the same treatment regime of G1B plus 2 injections of 250mg of progesterone (Cidolut-Depot) on Days 1 and 3 PI.
The 3rd group (G3B, control n=32) received no treatments.
The results of the present study showed a decrease in the conception rate in both G1B and G2B although there was a significant increase in the serum P4 concentration on Day 3 and 8 PI compared with the control.
In contrast there was a significent increase (P<0.01) in the CR in cows fed fatty acids supplemented feed compared with the control (75 vs 62.5%).
It could be concluded that one of the beneficial effects of peribreeding feeding cows on fatty acids supplemented feed is enhancing endogenous progesterone secretion which is being better than direct exogenous progesterone supplementation in improving conception rate in moderate yielding dairy cows.
Data Type
Conference Papers
Record ID
BIM-778718
American Psychological Association (APA)
Nasif, A. R.& Mansur, A. N.& Ramun, A. A.& Serur, B. H.. 2016-06-30. Effect of supplemented versus nutritionally induced progesterone on conception rate in moderate yielding dairy cows. International Conference of the Faculty of Veterinary Medicine on (Activation of technologies for the improvement of livestock) (4th : 2017 : Kafr El-Sheikh, University). . Vol. 14, no. 1 (2016), pp.199-220.Kafr El-Sheikh Egypt : Kafr El-Sheikh University Faculty of Veterinary Medicine.
https://search.emarefa.net/detail/BIM-778718
Modern Language Association (MLA)
Nasif, A. R.…[et al.]. Effect of supplemented versus nutritionally induced progesterone on conception rate in moderate yielding dairy cows. . Kafr El-Sheikh Egypt : Kafr El-Sheikh University Faculty of Veterinary Medicine. 2016-06-30.
https://search.emarefa.net/detail/BIM-778718
American Medical Association (AMA)
Nasif, A. R.& Mansur, A. N.& Ramun, A. A.& Serur, B. H.. Effect of supplemented versus nutritionally induced progesterone on conception rate in moderate yielding dairy cows. . International Conference of the Faculty of Veterinary Medicine on (Activation of technologies for the improvement of livestock) (4th : 2017 : Kafr El-Sheikh, University).
https://search.emarefa.net/detail/BIM-778718
