406 EFFECT OF DIFFERENT FOLLICLE-STIMULATING HORMONE DOSES ON SUPEROVULATORY RESPONSE OF Red Sindhi COWS

2010 ◽  
Vol 22 (1) ◽  
pp. 359
Author(s):  
B. P. Carvalho ◽  
M. R. B. Mello ◽  
J. M. Baldrighi ◽  
J. S. Campanati ◽  
R. R. C. Mello ◽  
...  
Keyword(s):  
Animal Health ◽  
Follicle Stimulating Hormone ◽  
Reproductive Potential ◽  
Estradiol Benzoate ◽  
Bovine Embryo ◽  
Treatment Groups ◽  
Adequate Dosage ◽  
Level Of Significance ◽  
Cryopreserved Embryos ◽  
Stimulating Hormone

The use of bovine embryo transfer to increase the reproductive potential of animals with high genetic merit is unquestionable. However, studies that evaluate the response to exogenous FSH stimulation in Red Sindhi cows are rare. Therefore, the objective of this study was to compare the superovulatory response of Red Sindhi cows treated with 3 different doses of FSH (Folltropin®-V, Bioniche Animal Health, Belleville, Ontario, Canada). The animals used had body condition scores ranging from 3.5 to 4.0 (1-5 scale), were between 6 and 10 years of age, and were randomly assigned to 1 of 3 treatment groups. Three doses of FSH were administered: 100 mg (n = 16); 133 mg (n = 13), and 200 mg (n = 14). The treatments were initiated on random days of the estrous cycle. On Day 0, animals received 2 mg of estradiol benzoate i.m. (Estrogin®, Farmavet, Jaboticabal, Brazil) and an intravaginal device (CIDR; InterAg, Hamilton, New Zealand) with 1.9 g of progesterone. On Day 4, donors received FSH in 8 i.m. injections that decreased in dose during 4 consecutive days. A dose of 265 μg of cloprostenol (Ciosin®, Schering-Plough, Cotia, Brazil) was given i.m. concomitantly with the fifth FSH injection. Twelve hours after the last FSH injection, donors received 25 μg of lecirelin i.m. (GnRH; Gestran Plus®, ARSA SRL, Buenos Aires, Argentina). TheAI were performed 12 and 24 h after GnRH. Seven days after the first AI, embryos were recovered and classified as described in the IETS manual. Data were evaluated using KruskalWallis test at a 5% level of significance. Ovarian ultrasonography was also performed to count the number of CL present at the time of ova/embryo collection. Results are summarized in Table 1. The number of CL and total ova/embryos was higher in donors receiving 200 mg of FSH than in those in the other groups. However, the number of transferable or cryopreserved embryos did not differ among groups. In conclusion, the dosage of 200 mg of Folltropin®-V seemed to be the more adequate dosage for this breed of cattle. Table 1.Effect of different follicle-stimulating hormone (FSH) doses on CL number, total structures, transferable embryos, and cryopreserved embryos in Red Sindhi cows (mean ± SEM) Financial support provided by FAPERJ (E26-170.529/2007).

scholarly journals Polyploid Abnormalities in Day 3 and Day 5 Merino Sheep Embryos

1988 ◽  
Vol 41 (2) ◽  
pp. 157 ◽  
Author(s):  
JD Murray ◽  
CD Nancarrow ◽  
RJ Scaramuzzi ◽  
Y Cognie
Keyword(s):  
Follicle Stimulating Hormone ◽  
Chromosome Complement ◽  
Age Group ◽  
Merino Sheep ◽  
Treatment Groups ◽  
Day 3 Embryos ◽  
Stimulating Hormone

The chromosome complement was assessed in Merino sheep embryos collected at 3 and 5 days after the onset of oestrus. Donor ewe treatments were: untreated, or immunized against androstenedione (day 3); and untreated, or treated with follicle-stimulating hormone (FSH), or treated with FSH plus immunization against androstenedione (day 5). No significant differences in the frequency of chromosomally abnormal embryos between treatment groups within each age group were observed, so the data have been combined. Euploid abnormalities were observed in 10�8070 of the day-3 embryos (4/37), with the abnormalities being one In, one 3n and two 5n. Embryos with euploidy (10%) were also observed at day 5, with three 1n12n mosaics and a 3n embryo present in a sample of 40. These data suggest that chromosomally aberrant embryos are not lost before day 5 of development.

293 SUBCUTANEOUS ADMINISTRATION OF FOLLICLE STIMULATING HORMONE FOR SUPEROVULATION OF HOLSTEIN COWS

2009 ◽  
Vol 21 (1) ◽  
pp. 243 ◽  
Author(s):  
P. W. Farin ◽  
K. M. Dowdall ◽  
J. E. Hicks ◽  
C. E. Farin ◽  
C. S. Whisnant
Keyword(s):  
Repeated Measures ◽  
Animal Health ◽  
Follicle Stimulating Hormone ◽  
Subcutaneous Administration ◽  
Prostaglandin F2α ◽  
Wilcoxon Test ◽  
Holstein Cows ◽  
Embryo Recovery ◽  
Pfizer Animal Health ◽  
Stimulating Hormone

Follicle stimulating hormone (FSH) is usually administered in a series of intramuscular (IM) injections to induce multiple ovulations for embryo production in cattle and other species. The objective of this study was to determine the superovulatory response of dairy cows to subcutaneous (SC) administration of FSH using a reduced number of injections in combination with a progesterone-releasing device. Eighteen non-lactating Holstein cows initially received 25 mg Prostaglandin F2α IM (PGF; Lutalyse; Pfizer Animal Health, Groton, CT, USA) on Day –7. All cows then received an intravaginal progesterone-releasing device (CIDR-B, 1.38 mg progesterone; Pfizer Animal Health) on Day 0, and 100 μg GnRH IM (Cystorelin; Merial Ltd, USA) on Day 2. Cows were randomly assigned to receive a total of 400 mg (20 mL) of FSH (Folltropin-V; Bioniche Animal Health, USA) either by IM injection (IM Group, n = 9 cows) given at 12 h intervals on Days 4 (60 mg, 60 mg), 5 (55 mg, 55 mg), 6 (45 mg, 45 mg) and 7 (40 mg, 40 mg), or by SC injection (SC Group, n = 9 cows) given at 24 h intervals on Days 4 (140 mg), 5 (140 mg) and Day 6 (120 mg). On Day 7, CIDR-B inserts were removed and cows received two 25 mg PGF IM injections given 12 h apart. Cows were artificially inseminated at 12 and 24 h after standing estrus. Blood samples were obtained from all cows at 0, 2, 4, 8, 12, 24, 36, 48, 60, 72, and 84 h after the first FSH injection for determination of serum FSH concentrations. Ovarian follicles and CL were monitored using ultrasonography on Days 4, 7, and 16. Embryos were recovered non-surgically on Day 16 (7 days after estrus). The effects of treatment on follicular response and embryo yield were analyzed by Wilcoxon test, and the response of cows to treatment was analyzed by chi-square test. The effects of treatment on concentrations of serum FSH were analyzed using ANOVA for repeated measures. There was no effect (P > 0.05) of route of FSH administration on the concentrations of serum FSH at any time point. The superovulatory response of cows to treatment, defined as greater than 2 CL per cow, did not differ (P > 0.05) between the IM (77.8%, 7/9 cows) and SC (88.9%, 8/9 cows) Groups. There was also no difference (P > 0.05) between the IM and SC Groups for the number of 5 to 10 mm follicles prior to FSH treatment (mean ± SEM; 0.6 ± 0.2 v. 0.9 ± 0.4), the total number of follicles after FSH treatment (12.4 ± 1.6 v. 12.7 ± 2.2) or the number of CL at embryo recovery (6.4 ± 1.5 v. 10.4 ± 2.1). Similarly, there were no differences (P > 0.05) between the IM and SC Groups for total number of oocytes/embryos (5.6 ± 2.6 v. 13.0 ± 4.3), transferable embryos (Grade 1, 2, 3; 3.0 ± 1.4 v. 6.1 ± 2.9) or Grade 1 embryos (2.9 ± 1.4 v. 4.3 ± 2.5). In conclusion, administration of FSH using 3 SC injections in combination with a progesterone-releasing device was an effective method for superovulation of Holstein cows. Supported by USDA Animal Health Formula Funds and the State of North Carolina.

scholarly journals 180EFFECT OF TIME OF ECG TREATMENT ON PREGNANCY RATES IN BOS INDICUS×BOS TAURUS RECIPIENTS SYNCHRONIZED WITH PROGESTERONE VAGINAL DEVICES AND TRANSFERRED WITHOUT ESTRUS DETECTION

2004 ◽  
Vol 16 (2) ◽  
pp. 212
Author(s):  
L.F. Nasser ◽  
E.L. Reis ◽  
A.M. Oliveira ◽  
G.A. Bo ◽  
P.S. Baruselli
Keyword(s):  
Bos Taurus ◽  
Bos Indicus ◽  
Fixed Time ◽  
Estradiol Benzoate ◽  
Pregnancy Rates ◽  
Bovine Embryo ◽  
Treatment Groups ◽  
Estrus Detection ◽  
Treatment Interaction

It has been shown recently that treatments with progesterone (P4)-releasing devices combined with estradiol benzoate (EB) plus P4 on Day 0, eCG and PGF on Day 5 and a second application of EB one day after device removal (Day 9) can be used successfully to transfer bovine embryos at a self-appointed time, without the necessity of estrus detection. Although the treatment solved one of the major problems in recipient management, estrus detection, it requires handling the recipients at least five times for treatments and embryo transfer. An experiment was designed to evaluate whether reducing one day of handling, by the administration of eCG and PGF at the time of removal of the P4 device (Day 8), results in comparable pregnancy rates than giving eCG on Day 5. A secondary objective was to determine the effect of injectable P4 at the time of device insertion plus EB treatment. Crossbred Bos taurus×Bos indicus beef heifers (n=301) were randomly assigned to 4 treatment groups in a 2 by 2 factorial design. All Heifers received a P4 device (DIB, Syntex, Argentina) plus 2mg EB i.m. (Syntex) at unknown stages of the estrous cycle (Day 0), with or without 50mg of P4 given i.m. at the same time. Heifers were further subdivided to receive PGF (0.150mg d-cloprostenol, Prolise, Tecnopec, Sao Paulo, Brazil) and 400IU of eCG (Novormon, Syntex) i.m. on Days 5 or 8. In all heifers, DIB devices were removed on Day 8 and 1 mg EB was administered i.m. on Day 9. Day 10 was arbitrarily considered as the day of estrus. On Day 17, heifers were bled for plasma P4 concentrations and examined by ultrasonography to determine the number of CL and their diameter. Heifers that had >1 CL or a single CL with diameter ≥18mm received an in vitro-produced (IVP) embryo by nonsurgical transfer performed by the same veterinarian. Pregnancy rates were determined by ultrasonography 30 days later. The effects of Day of eCG administration (Day 5 or Day 8), P4 of treatment (E2 or E2+P4) and the day-by-P4 treatment interaction on the numbers of CL and plasma P4 were analyzed by ANOVA, and the proportion of recipients selected and pregnant were analyzed using non-parametric tests (NPAR1WAY, SAS). There was no significant effect of P4 treatment or the P4-by-day of eCG interaction in any of the parameters evaluated. However, there was a significant effect of day of eCG administration on plasma P4 concentrations (Day 5=2.4±0.3 v. Day 8=1.7±0.2; P=0.03) and the number of CL (Day 5=1.4±0.1 v. Day 8=1.1±0.0; P=0.02) on Day 17. Furthermore, the proportion of recipients pregnant/treated tended (P=0.1) to be higher in heifers in the Day 5 Group (71/151, 47.0%) than in those in the Day 8 Group (61/150, 40.7%). Although delaying the eCG and PGF administration from Day 5 to Day 8 saves one trip through the chute for treatments, it resulted in lower plasma P4 concentrations and tended to decrease pregnancy rates in bovine embryo recipients synchronized with DIB devices and EB and transferred at a fixed time. Furthermore, the administration of injectable P4 at the time of DIB insertion did not affect pregnancy rates.

scholarly journals Effects of Satureja Edmondi Briq on Ameliorate Reproductive Parameters in Pentylenetetrazol-Induced Epilepsy Models in Rats

2020 ◽  
Author(s):  
somayeh bohlouli ◽  
gelavij mahmoodi
Keyword(s):  
Luteinizing Hormone ◽  
Essential Oil ◽  
Sperm Count ◽  
Follicle Stimulating Hormone ◽  
Reproductive Potential ◽  
Sperm Parameters ◽  
Male Rats ◽  
World Health ◽  
Health Organization ◽  
Stimulating Hormone

Abstract BackgroundEpilepsy is one of the common neurological brain defects that causes unpredictable, recurrent seizures. It has adverse effects on the reproductive functions.Oxidative stress contributes to the evolution of epilepsy, including reduction of sperm count and motility,increase of abnormal sperm morphology, and low testosterone.Antioxidants are beneficial to spermatogenesis and sperm parameters. Satureja edmondiBriq is known as a powerful antioxidant that can reduce the effects of oxidative stress. The aim of this study was to evaluate the effects of Satureja edmondion reproductive potential in pentylenetetrazol (PTZ)-induced epileptic male rats.MethodsIn this experimental study, 48 Wistar male rats with an average age of 10 weeks and weightof 240- 260g were used. Animals were randomized into normal and kindled groups that were treated with different doses of S.edmondi essential oil. Treatment of animals lasted 4 weeks. In the end, testosterone, follicle-stimulating hormone, luteinizing hormone, and sperm parameters were measured according to the World Health Organization (WHO) standards.ResultsThis study showed that all sperm parameters,including sperm count, sperm viability, and progressive sperm motility were increased and testosterone, follicle-stimulating hormone and luteinizing hormone (FSH,LH) changes in the epileptic and normal groups were changed with an increase in the dose of S.edmondi essential oil. ConclutionsThe changes were significant in some parameters. S.edmondi as a good source of antioxidants can improve sperm parameters and reproductive potential in PTZ-induced epileptic male rats.

scholarly journals Role of follicle-stimulating hormone and estradiol benzoate in recovering spermatogenesis in tamoxifen-injured rats

2018 ◽  
Vol 7 (6) ◽  
pp. 248 ◽  
Author(s):  
Ali Olfati ◽  
Gholamali Moghaddam ◽  
Kaniaw Rafat Khafar ◽  
Ali Mojtahedin ◽  
Azad Abdolahzadeh
Keyword(s):  
Follicle Stimulating Hormone ◽  
Estradiol Benzoate ◽  
Stimulating Hormone

scholarly journals Superovulation in cows synchronized with two different progesterone+oestradiol protocols

2013 ◽  
Vol 56 (1) ◽  
pp. 160-168
Author(s):  
B. Bülbül ◽  
M. Kırbaş ◽  
Ş. Dursun ◽  
M. Köse
Keyword(s):  
Follicle Stimulating Hormone ◽  
Control Group ◽  
Treatment Groups ◽  
Brown Swiss ◽  
Oestrus Cycle ◽  
Significant Difference ◽  
Oestradiol Benzoate ◽  
Intravaginal Device ◽  
Stimulating Hormone

Abstract. A total of 26 Brown Swiss cows were used to compare the synchronization and superovulatory response of follicle stimulating hormone treated cows that were synchronized with progesterone+oestradiol valerate or benzoate. Control cows (n = 8) were superstimulated with follicle stimulating hormone using twice daily injections with decreasing doses from day 10–13 after determined reference oestrus. Cows in treatment groups were received either ear implant (n = 9) containing norgestomet+oestradiol valerate or progesterone releasing intravaginal device (n = 9) containing progesterone+oestradiol benzoate, at random stage of the oestrus cycle, for 9 days. Seven days after the implant and progesterone releasing intravaginal device insertion, follicle stimulating hormone was injected as described in the control group. There was no significant difference between the groups for superovulation responses. In conclusion, both protocols synchronized the oestrus cycle in follicle stimulating hormone treated cows and, any of the protocols evaluated in this study can be used as a pretreatment for superstimulation started on the seventh day of the implant or progesterone releasing intravaginal device insertion in Brown Swiss cows.

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