Reproductive performance of postpartum dairy cows under a highly intervenient breeding program involving timed insemination and combinations of GNRH, prostaglandin F2α and human chorionic gonadotropin

2001 ◽  
Vol 56 (1) ◽  
pp. 91-104 ◽  
Author(s):  
S.K. Tallam ◽  
T.L. Kerbler ◽  
K.E. Leslie ◽  
K. Bateman ◽  
W.H. Johnson ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Chorionic Gonadotropin ◽  
Reproductive Performance ◽  
Human Chorionic Gonadotropin ◽  
Prostaglandin F2α ◽  
Breeding Program

scholarly journals Effects of Intrauterine Infusion of a Chitosan Solution on Recovery and Subsequent Reproductive Performance of Early Postpartum Dairy Cows with Endometritis: A Pilot Field Trial

Animals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 197
Author(s):  
Hiroaki Okawa ◽  
Missaka M.P. Wijayagunawardane ◽  
Peter L.A.M. Vos ◽  
Osamu Yamato ◽  
Masayasu Taniguchi ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Reproductive Performance ◽  
Polymorphonuclear Leukocytes ◽  
Prostaglandin F2α ◽  
Chitosan Solution ◽  
Control Group ◽  
Control Groups ◽  
Early Postpartum Period ◽  
Early Postpartum ◽  
And Control

This study investigated the efficacy of intrauterine infusion of a chitosan solution (CHT) on uterine recovery in early postpartum dairy cows with or without endometritis, and their subsequent reproductive performance. In Experiment 1, cows with endometritis at 3 weeks postpartum were administered CHT (n = 5) and prostaglandin F2α (PGF2α) (n = 4). Untreated cows (n = 7) served as the control group. In Experiment 2, 18 cows with a normally recovered uterus at the fresh cow check (mean, 35 days postpartum) were assigned to the CHT (n = 10) and control (n = 8) groups, and intrauterine infusion was conducted in the CHT group. Overall, in Experiment 1, the percentage of polymorphonuclear leukocytes significantly declined in the CHT group (32.3 ± 10.2 to 5.5 ± 2.4, p < 0.05) from week 3 to week 5, but no decline occurred in the PGF2α and control groups. In Experiment 2, the CHT and control groups showed no significant differences in reproductive parameters, suggesting the absence of adverse effects of CHT on fertility. These results suggest that intrauterine infusion of CHT in the early postpartum period effectively accelerates uterine recovery from endometritis and might be a suitable replacement for PGF2α administration.

scholarly journals Pregnancy rate in dairy cows treated with human chorionic gonadotropin five days after insemination

2017 ◽  
Vol 49 (2) ◽  
pp. 119-122 ◽  
Author(s):  
Ernesto Urzúa González ◽  
Luis Ángel Valdés Pérez ◽  
Agustín Garza ◽  
Gabriela Mapes ◽  
Carlos G. Gutiérrez ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Pregnancy Rate ◽  
Chorionic Gonadotropin ◽  
Human Chorionic Gonadotropin

scholarly journals Purulent vaginal discharge in grazing dairy cows: Risk factors, reproductive performance, and prostaglandin F2α treatment

2017 ◽  
Vol 100 (5) ◽  
pp. 3805-3815 ◽  
Author(s):  
M.J. Giuliodori ◽  
M. Magnasco ◽  
R.P. Magnasco ◽  
I.M. Lacau-Mengido ◽  
R.L. de la Sota
Keyword(s):  
Risk Factors ◽  
Dairy Cows ◽  
Reproductive Performance ◽  
Vaginal Discharge ◽  
Prostaglandin F2α ◽  
Grazing Dairy Cows

scholarly journals Effect of pituitary extract, ovaprim and combination of human chorionic gonadotropin and metoclopramide on reproductive performance of Caspian shemaya, Alburnus chalcoides (Guldenstadt, 1772)

2019 ◽  
Vol 66 (1) ◽  
Author(s):  
Majid Nosrati ◽  
Hossein Khara ◽  
Habib Vahabzadeh ◽  
Sayeed Fakhredin Mirhashemi Nasab
Keyword(s):  
Chorionic Gonadotropin ◽  
Reproductive Performance ◽  
Human Chorionic Gonadotropin ◽  
Latency Period ◽  
Hormonal Treatment ◽  
Control Group ◽  
Pituitary Extract ◽  
Final Maturation ◽  
Experimental Treatments ◽  
Egg Diameter

The present study was conducted to examine the effects of three different hormonal treatment types i.e., pituitary extract (Pt), ovaprim (Ov) and human chorionic gonadotropin (HCG) + Metoclopramide (Met) on reproductive performance of Caspian shemaya, Alburnus chalcoides (Guldenstadt, 1772). To this end, three experimental treatments and one control group were considered. The experimental groups were administrated with different doses of Pt, Ov, HCG + Met as follows: Pt [2 mg kg bw (body weight)-1], Pt (3 mg kg bw -1), Pt (4 mg kg bw -1), Ov (10 μg kg bw -1), Ov (20 μg kg bw -1), Ov (30 μg kg bw -1), HCG + Met (1000 IU kg bw -1), HCG + Met (2000 IU kg bw -1), HCG + Met (3000 IU kg bw-1) and also a control group without any hormonal treatment. The highest values of oocyte weight and egg diameter were observed in groups administrated with Ov (10 μg kg bw-1) and HCG + Met (2000 IU kg bw-1) respectively. The highest values of absolute fecundity and relative fecundity were recorded for fish administrated with Ov (20 μg kg bw-1). The latency period and hour-degree for final maturation were lower in fish administrated with Ov (10 μg kg bw-1) compared to other experimental groups (p<0.05). There were no significant differences between experimental groups in terms of other assayed parameters. The results of the present study demonstrated higher efficiency of ovaprim in improving the reproductive performance of Caspian shemaya.

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