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Full-Text Articles in Medicine and Health Sciences
Pregnancy Rate Following Artificial Insemination Or Natural Service In Postpartum Estrus Synchronized Beef Cattle, Abdul Malik, Abd Wahid Haron, Rosnina Yusoff, Azhar Kasim, Sabri Mohd Yusoff
Pregnancy Rate Following Artificial Insemination Or Natural Service In Postpartum Estrus Synchronized Beef Cattle, Abdul Malik, Abd Wahid Haron, Rosnina Yusoff, Azhar Kasim, Sabri Mohd Yusoff
Turkish Journal of Veterinary & Animal Sciences
The objective of this study was to investigate the pregnancy rate following artificial insemination (AI) or natural service (NS) in postpartum estrous synchronized beef cattle. A total of 85 Brangus cows, postpartum, were divided into 2 groups. Group 1 consisted of 35 cows and was further subdivided into 7 groups, each consisted of 5 cows that were naturally mated. Group 2 consisted of 40 cows that were artificially inseminated. Estrus synchronization was carried out using a controlled internal drug releasing device (CIDR) containing 1.38 mg of progesterone, for 7 days. Group 1 cows were mixed with bulls at a 1:5 …
The Effect Of Intrauterine Cephapirin Treatment After Insemination On Conception Rate In Repeat Breeder Dairy Cows Subjected To The Progesterone-Based Ovsynch Protocol, Ahmet Gümen, Gülnaz Meci̇toğlu, Abdulkadi̇r Keski̇n, Ebru Karakaya, Ali̇ Alkan, Umut Taşdemi̇r, Hayretti̇n Okut
The Effect Of Intrauterine Cephapirin Treatment After Insemination On Conception Rate In Repeat Breeder Dairy Cows Subjected To The Progesterone-Based Ovsynch Protocol, Ahmet Gümen, Gülnaz Meci̇toğlu, Abdulkadi̇r Keski̇n, Ebru Karakaya, Ali̇ Alkan, Umut Taşdemi̇r, Hayretti̇n Okut
Turkish Journal of Veterinary & Animal Sciences
Subclinical endometritis contributes to repeat breeder syndrome in dairy cows. This study evaluated the effect of intrauterine cephapirin benzathine administration after timed artificial insemination (TAI) on the conception rate (CR) in repeat breeder dairy cows. To determine the antibiotic effects, all cows (n = 335) that had more than 3 services with no clinical abnormalities of the reproductive tract received the same combined synchronisation protocol: an ear implant containing progestagen using the Ovsynch protocol and a third gonadotropin-releasing hormone (GnRH) administration 7 days after TAI. Cows in the treatment group (TRT; n = 160) received intrauterine cephapirin 12 h after …
Reproductive Performance And Serum Concentrations Of Progesterone Of Heat-Stressed Holstein Heifers Subjected To Timed Artificial Insemination And Progesterone Supplementation, Abelardo Correa Calderon, Juan Augusto Hernandez Rivera, Leonel Avendaño Reyes, Ulises Macias Cruz, Raul Diaz Molina, Francisco Daniel Alvarez Valenzuela, Arnoldo Gonzalez Reyna
Reproductive Performance And Serum Concentrations Of Progesterone Of Heat-Stressed Holstein Heifers Subjected To Timed Artificial Insemination And Progesterone Supplementation, Abelardo Correa Calderon, Juan Augusto Hernandez Rivera, Leonel Avendaño Reyes, Ulises Macias Cruz, Raul Diaz Molina, Francisco Daniel Alvarez Valenzuela, Arnoldo Gonzalez Reyna
Turkish Journal of Veterinary & Animal Sciences
Sixty-nine Holstein heifers were used to evaluate the effect of progesterone supplementation after timed artificial insemination (TAI) on conception rates of heifers under heat stress. Heifers were randomly assigned to 1 of 3 treatments: 1) control treatment (C), visual detection of estrus. Heifers detected in estrous were inseminated according to the AM-PM procedure (n = 23); 2) TAI (n = 24), using a CIDR device (insert containing progesterone) placed intravaginally on day -10 and removed on day -2 with PGF2α given on day -3. Heifers were given 0.5 mg of ECP at CIDR insertion and a second injection (0.5 mg …