In addition, higher quality embryos would be obtained by superovulation of cows during embryo transfer, thus increasing the pregnancy rates of this alternative reproduction technique. (dellait.com)
A team of researchers from Washington State University (USA) and the University of Calgary (Canada) conducted a study to determine the effect of body condition (BCS), the presence of subclinical endometritis and the concentration of various circulating metabolic markers (adiponectin, leptin, insulin, IGF1, tumor necrosis factor a, urea and interleukines 1b and 6) on the response to superovulation of embryo donor cows . (dellait.com)
On the other hand, concentrations of adiponectin, leptin, IGF1 and insulin were higher in cows with up to 6% polymorphonuclear neutrophils in embryo recovery fluid, while tumor necrosis factor concentration and interleukins 1b and 6 were higher in cows with subclinical endometritis (more than 6% polymorphonuclear neutrophils). (dellait.com)
Artificial insemination and embryo transfer techniques are reproductive technologies used to exploit genetic potential of elite male and female in dairy herds, respectively. (nianik.com)
During in vitro embryo production, the ovaries of donor cow is being visualized by ultrasound scanner. (nianik.com)
Beef and dairy2
Recombinant, long acting, high potency bovine LH superagonist analog for maintenance of pregnancy in beef and dairy cows. (wikipedia.org)
This process is perhaps the most important thing for farmers to understand about cows, as it is vital for both beef and dairy cows to produce healthy calves each year for optimal productivity. (cowcaretaker.com)
Holstein4
Kasimanickam R, Kasimanickam V, Kastelic JP, Ramsey K. Metabolic biomarkers, body condition, uterine inflammation and response to superovulation in lactating Holstein cows. (dellait.com)
In USA and European countries that mainly work with Holstein dairy cows with relatively low ovarian reserve and the fact that it is important for the owners to have donor cow becomes pregnant after termination of the program, MOET program is a method of choice. (nianik.com)
From 30 elite and eligible Holstein dairy cows enrolled as donor cows, we have collected 279 ova/embryos. (nianik.com)
We herein investigated whether a single epidural injection of porcine FSH (pFSH) can induce superovulation and peripheral concentrations of pFSH and steroid hormones after the treatment in Holstein dry cows. (bvsalud.org)
Knowledge of the location of the vestibule is important because it is possible to cause injury to a cow when attempting artificial insemination if an inseminating rod is accidentally placed into it. (cowcaretaker.com)
Donor cows4
Dellait » Dellait Knowledge Center » Management » Reproduction » How does the body condition of donor cows affect the quality of embryos? (dellait.com)
The first factor that could be linked to the production and viability of the embryos was BCS of the donor cows, so that females in BCS2, BCS3 and BCS4 groups produced more eggs and embryos than those in BCS1 and BCS5 groups , and in addition, BCS2 and BCS3 groups produced more transferable embryos than the rest (table 1). (dellait.com)
Urea nitrogen concentrations in donor cows' blood showed a linear association with BCS , with 11.8, 16.2, 17.4, 19.8 and 22.4 mg/dl for the five BCS groups, respectively. (dellait.com)
From this study it was concluded that both BCS and inflammation of the endometrium of donor cows influence the number and quality of embryos . (dellait.com)
Estrous cycle3
Superovulation ensures recovery of multiple embryos during one estrous cycle, thus allowing us to maximally exploit the female germ pool. (biomedcentral.com)
2018. Dynamics of uterine and ovarian arteries flow velocity waveforms and their relation to follicular and luteal growth and blood flow vascularization during the estrous cycle in Friesian cows. (abanicoacademico.mx)
Eighteen repeat breeder cows, nine heifers, and nine control cows were also determined for leptin receptor (Ob-R) expression levels in the estrous cycle before and after the infusion. (bvsalud.org)
Fertility3
In dairy cows, low fertility caused by summer heat stress continues into the cooler autumn season. (bvsalud.org)
Factors associated with high milk production levels have been linked to alterations in the endometrial epidermal growth factor (EGF) profile, a cause of reduced fertility in dairy cows. (bvsalud.org)
Therefore, we examined the leptin system that connects nutritional status and reproduction in dairy cattle related to reduced fertility in repeat breeder cows. (bvsalud.org)
Synchronization1
Regarding reproductive management, to maximize profit by planning deliveries and have constant milk production throughout the year, modern forms of breeding also use heat synchronization , superovulation, and instrumental insemination techniques. (agricoleforte.com)
Estrus3
Then, all repeat breeder cows were infused with seminal plasma (SP) into the vagina at the next estrus to normalize the EGF profile, while heifers and control cows were infused with vehicle alone. (bvsalud.org)
The vulva will often swell during estrus (when a cow comes into heat and is ready for breeding). (cowcaretaker.com)
A red color will become prominent in this area as it experiences an increased amount of blood flow, and this color change is one of the best signs that farmers can look for when determining if a cow is in estrus. (cowcaretaker.com)
Indicus3
Pregnancy rate following GnRH+PGF2α treatment of low body condition, anestrous Bos taurus by Bos indicus crossbred cows during the summer months in a tropical environment. (abanicoacademico.mx)
Evaluación ultrasonográfica postparto de vacas primíparas bos taurus x bos indicus (F1) en el trópico. (abanicoacademico.mx)
In contrast, in countries like Brazil that deal with the great number of Bos indicus (Nelore) cows with great ovarian reserve, in vitro production of embryos is a method of choice. (nianik.com)
Leptin2
Blood concentrations of adiponectin, leptin, insulin, IGF1 and tumor necrosis factor were higher in cows with moderate to good body condition (BCS2, BCS3 and BCS4) than in thin (BCS1) or obese (BCS5) cows. (dellait.com)
Plasma leptin concentrations were measured in 18 heifers, 20 high-yielding control cows, and 26 repeat breeder cows, showing an altered EGF profile. (bvsalud.org)
Follicles2
Then donor cow receives stimulating hormones in order to support more follicles to grow and have multiple ovulation (superovulation). (nianik.com)
Recently, we found that primordial follicles in mature cows and prepubertal pigs took longer to initiate growth in xenografts compared with those in neonatal animals. (go.jp)
Concentrations1
It also established the relationship of concentrations of various plasma markers both with body condition and the presence of subclinical endometritis and with the production of viable embryos in superovulated cows. (dellait.com)
Vagina3
A cow's vagina is part of the reproductive tract of a cow. (cowcaretaker.com)
The cow vagina is an 8-inch long passageway located between the cervix and opening to the bladder and is the location of semen deposit during copulation with a bull. (cowcaretaker.com)
The cow vagina also stretches to accommodate passing a calf during the birthing process. (cowcaretaker.com)
Fertilization1
Close to 50% of embryos are not viable seven days after fertilization in high-producing dairy cows. (dellait.com)
Reproductive tract1
The vulva of a cow is the only part of the reproductive tract that is located outside of the body. (cowcaretaker.com)
Milk1
1998. Effects of timed insemination and supplemental β carotene on reproduction and milk yield of dairy cows under heat stress. (abanicoacademico.mx)
Calf1
A ligament attaches the cow's uterus, oviducts, and ovaries, which are located in the pelvic area of the cow and suspended to allow for ease of movement and later to accommodate a growing fetal calf. (cowcaretaker.com)
20191
2019. Dinámica folicular de vaquillas Criollas al pastoreo en el altiplano ecuatoriano. (abanicoacademico.mx)
Farmers1
More recently, we performed MOET program in World Pure Heifer dairy farms belong to one of the best dairy farmers in Iran, Mr Shahriyar Saffari, between Feb and April 2021. (nianik.com)
Pregnant2
Alternatively, the donor cow can become pregnant without any particular problem. (nianik.com)
A cow's reproductive system is comprised of several body parts that work together to allow for a cow to get pregnant and subsequently give birth. (cowcaretaker.com)
Long2
With cows, it's an 8-inch long passageway that lubricates and protects the rest of the reproductive system from bacterial colonization and foreign contaminants. (cowcaretaker.com)
ST agrees, however, that Select Sires' customers may use 4,000,000 concentration straws for superovulation or IVF so long as the service provider or the end-user is authorized for such use under an independent license (other than this agreement) by XY. (selectsiresbeef.com)
Treatment3
After the superovulation treatment, all cows were randomly inseminated with two doses (separated by 24 hours) of frozen/thawed semen from three bulls with a conception rate of +4. (dellait.com)
In contrast, Ob-R levels in repeat breeder and control cows were similar and higher than those in heifers before SP treatment. (bvsalud.org)
Ob-R in repeat breeders showing a normal EGF profile after treatment decreased to an intermediate level between heifers and control cows and may provide a clue to take measures against repeat breeding in dairy cows. (bvsalud.org)
Growth1
The company was founded in 2001 with Series A funding from Toucan Capital, focusing on the development of human and bovine high affinity glycoprotein hormone and related growth factor superagonist analogs for human infertility and animal superovulation, as well as targeted therapy and imaging of thyroid, ovarian, breast, prostate and testicular cancers. (wikipedia.org)
Days1
We intramuscularly administered pFSH twice daily to three cows for 3 days (control) or a single epidural pFSH administration (epidural). (bvsalud.org)
Management1
Compared to more traditional breeding systems, this system requires the application of specific management practices that are more akin to intensive dairy cow breeding. (agricoleforte.com)
Important1
It is incredibly important to house cows in sanitary environments and to use clean inseminating equipment, lest vaginal infection occur. (cowcaretaker.com)
Found1
Ariana Negreiro first found her passion for dairy research as an undergraduate student at Michigan State University. (msu.edu)