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Fertility of Dairy Cows after Resynchronization of Ovulation at Three Intervals Following First Timed Insemination
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ABSTRACT
Lactating Holstein cows (n = 711) on a commercial dairy farm in Wisconsin received a hormonal synchronization protocol to initiate first timed artificial insemination (TAI) on the following postpartum schedule: two injections of 25 mg PGF^sub 2[alpha]^ at 32 ± 3 d and 46 ± 3 d (Presynch); 100 µg GnRH at 60 ± 3 d; 25 mg PGF^sub 2[alpha]^ at 67 ± 3 d; and 100 µg GnRH + TAI at 69 ± 3 d (Ovsynch). At first TAI, cows were randomly assigned to initiate the first GnRH injection of a hormonal protocol for resynchronization of ovulation (Resynch; 100 µg GnRH, d 0, 25 mg PGF^sub ...
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Effect of Interval from Timed Artificial Insemination to Initiation of Resynchronization of Ovulation on Fertility of Lactating Dairy Cows
; ...using ultrasonography 33 d after TAI, whereas D33 cows initiated Resynch only when diagnosed not pregnant 33 d after TAI. Cows were classified based on the presence...D33) d after first postpartum TAI for cows submitted to a Presynch + Ovsynch...
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Assessment of a Practical Method for Identifying Anovular Dairy Cows Synchronized for First Postpartum Timed Artificial Insemination
; ...identifying the cyclicity status of cows before first TAI, but may slightly overestimate...synchronization of ovulation and TAI, anovular cows had reduced fertility and...synchronization of ovulation and TAI. Treatment of anovular cows with GnRH 5 d after TAI improved...
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Effect of Pretreatment with Prostaglandin F^sub 2[alpha]^ Before Resynchronization of Ovulation on Fertility of Lactating Dairy Cows
; ...insemination (P/AI) than RES cows 66 d after TAI (35.2 vs. 25.6%), whereas...increased P/ AI 66 d after TAI for cows with serum P^sub 4^ concentration...Ovsynch at first postpartum TAI is to presynchronize groups of cows using 2 injections of PGF...
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Pregnancy Rates in Lactating Dairy Cows After Presynchronization of Estrous Cycles and Variations of the Ovsynch Protocol*
; ...injection. Timed AI (TAI) was conducted at...later (G48 + TAI72). Cows in the third treatment...differences in initial TAI pregnancy rates. Pregnancy...loss was least for cows on the G72 + TAI72...but because more cows are inseminated, depending...usually greater after TAI (Pursley ...
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Brian R. Dott. Identity Reflections: Pilgrimages to Mount Tai in Late Imperial China.(Book review)
; ...Identity Reflections: Pilgrimages to Mount Tai in Late Imperial China. Cambridge (MA) and...and a major tourist destination today, Mt. Tai (Taishan) in Shandong Province is China...asserts that everyone who has journeyed to Mt. Tai has gone there with a different idea of...
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Timed Artificial Insemination in Postpartum Beef Cows Using Melengestrol Acetate, Prostaglandin F^sub 2[alpha]^, and Gonadotropin-Releasing Hormone
; ...GnRH) in a timed AI (TAI) protocol in postpartum beef cows. One hundred twenty-o...P≥0.25). The TAI procedure described...those obtained with cows in a standard 14...pregnancy rate (PR) to TAI in postpartum beef cows. Materials and Methods...
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OLDER BROTHER ATTENDS TO SIBLINGS HURT IN CRASH TAI NGUYEN'S PARENTS DIE IN CAR WRECK THAT INJURES HIS BROTHER AND SISTER
; Tai Nguyen stood next to his young sister's hospital chair, gingerly...mouthed a few words in response. "She said she wants to sleep," Tai told a nurse, who was changing his little sister Huong's bed...baby of the family. Nearly every waking moment since then, Tai Nguyen, 28, has been at his younger ...
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MARY TAI, 86, RAN RESTAURANT IN MELROSE WITH HER HUSBAND
; When Mary "Shun Pao" Tai was 5, her parents told her that, in keeping...marriage, and they respected that." Mrs. Tai, who became a successful businesswoman in...China, to a family of 10 children, Mrs. Tai's father owned a market until he was forced...
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Treatment with Gonadotropin-Releasing Hormone After First Timed Artificial Insemination Improves Fertility in Noncycling Lactating Dairy Cows
; ...artificial insemination (TAI). In Experiment 1, cows received no treatment (control...concentrations from 5 to 19 d after TAI, there was a tendency for CIDR cows to have greater P^sub 4...loss after first postpartum TAI for cows treated with CIDR inserts...
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 "Rocky Mountain News (Denver, CO)")
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OLDER BROTHER ATTENDS TO SIBLINGS HURT IN CRASH TAI NGUYEN'S PARENTS DIE IN CAR WRECK THAT INJURES HIS BROTHER AND SISTER.(City Desk/Local)
; Byline: Kim Nguyen ROCKY MOUNTAIN NEWS Tai Nguyen stood next to his young sister's...response. ``She said she wants to sleep,'' Tai told a nurse, who was changing his little...Nearly every waking moment since then, Tai Nguyen, 28, has been at his younger siblings...
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