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Abstract

On the day of induced estrus, jugular vein blood samples were collected from healthy repeat breeder cattle (n=45) for the estimation of haemoglobin, glucose, cholesterol and total protein, followed by pregnancy diagnosis on day 45 post-insemination. There was no difference (p<0.05) in haemoglobin, plasma cholesterol and plasma total protein in animals showing weak, intermediate or intense estrus, however, plasma glucose was high (p<0.05) in animals exhibiting intense estrus compared to their counterparts exhibiting intermediate estrus. Between pregnant and non-pregnant counterparts, plasma total protein was high (p<0.05) on the day of induced estrus in the former, whereas other blood/plasma parameters were similar (p>0.05). In brief, plasma ...

Author(s)
Kunde, A. A. S.; Raju, M. S.; Murugavel, K.; Thanislass, J.
Publisher
Indian Society for Study of Animal Reproduction (ISSAR), Chennai, India
Citation
Indian Journal of Animal Reproduction, 2018, 39, 1, pp 59-60
Abstract

Repeat breeder cattle (n=45) were synchronized using intravaginal progestational device (TRIU-B) based Co-Synch protocol. On day 6 post artificial insemination (AI), all the animals were administered (i.m.) either 10 µg GnRH analogue, (n=15), 1500 IU hCG (n=15) or normal saline (n=15). Pregnancy...

Author(s)
Kunde, A. A. S.; Raju, M. S.; Murugavel, K.
Publisher
Indian Society for Study of Animal Reproduction (ISSAR), Chennai, India
Citation
Indian Journal of Animal Reproduction, 2018, 39, 1, pp 57-58
Abstract

The female yaks (n=52) were detected in estrus by parading vasectomized bull between 8-9 am (morning) and between 3-4 pm (evening). A group of females (n=18) detected in estrus in morning were inseminated twice on the same day between 9-10 am and between 4-5 pm. The remaining females (n=13)...

Author(s)
Borah, B. K. D.; Deka, B. C.; Biswas, R. K.; Deori, S.; Chakravarty, P.; Sinha, S.; Ahmed, K.
Publisher
Indian Society for Study of Animal Reproduction (ISSAR), Chennai, India
Citation
Indian Journal of Animal Reproduction, 2018, 39, 1, pp 53-54
Abstract

We determined the effect of GnRH or hCG treatment on day 4 post-time artificial insemination (FTAI) on the formation of accessory corpora lutea (acc-CL) and on the concentration of serum progesterone (P4) in sheep. Multiparous adult Merino ewes (n=36) were synchronized for estrus using double...

Author(s)
Fernandez, J.; Bruno-Galarraga, M. M.; Soto, A. T.; Sota, R. L. de la; Cueto, M. I.; Lacau, I. M.; Gibbons, A. E.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 105, pp 184-188
Abstract

A novel in vivo model utilizing serial administrations of PGF to induce aluteal cycles in the mare was used to evaluate the effects of progesterone-deprivation on the morphology of in vivo preimplantation embryos. We hypothesized that equine embryos produced during induced aluteal cycles (AL)...

Author(s)
Leisinger, C. A.; Medina, V.; Markle, M. L.; Paccamonti, D. L.; Pinto, C. R. F.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 105, pp 178-183
Abstract

The use of genomic testing in the cattle industries has renewed an interest in hastening bull puberty. In prepubertal males, FSH facilitates Sertoli cell proliferation and testis maturation. The aim of this study was to determine the effect of prepubertal administration of a timed-release FSH...

Author(s)
Harstine, B. R.; Cruppe, L. H.; Abreu, F. M.; Rodrigues, A. D.; DeJarnette, J. M.; Day, M. L.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 105, pp 135-141
Abstract

The addition of aminopeptidase inhibitors (AMIs) to rabbit semen extenders could be a solution to decrease the hormone degradation (GnRH) by the aminopeptidases existing in the seminal plasma. Therefore, the quantity of GnRH needed to induce ovulation in doe would be comparable with the amount...

Author(s)
Casares-Crespo, L.; Fernández-Serrano, P.; Vicente, J. S.; Mocé, E.; Castellini, C.; Stabile, A. M.; Viudes-de-Castro, M. P.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 105, pp 61-65
Abstract

This study investigated the effect of gonadotropin-releasing hormone (GnRH) on ovulatory response after complete luteolysis induced by two low doses of prostaglandin (PG)F2α in lactating dairy cows. Cows (n=18) ranging between 45 and 65 days in milk were recruited for synchronization by a modified...

Author(s)
Liu TsungChing; Chiang ChenFei; Ho, C. T.; Chan PengWen [Chan, P. W. J. ]
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 105, pp 45-50
Abstract

Boar exposure is used to stimulate follicle development and estrus in sows after weaning and also to improve semen uptake and sperm transport with insemination. However, the need and value of boar exposure is uncertain when ovulation induction is used. These studies were designed to determine the...

Author(s)
Ulguim, R. R.; Bortolozzo, F. P.; Wentz, I.; Johnston, M.; Webel, S. K.; Arend, L.; Knox, R. V.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 105, pp 27-33
Abstract

This study aimed to investigate the effects of a single administration of one of three different gonadotropins on Day 7 post-insemination on ovarian activity, progesterone (P4) concentration and pregnancy outcomes of rabbit does. Multiparous, non-lactating, V-line does were artificially inseminated ...

Author(s)
Hashem, N. M.; Aboul-ezz, Z. R.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 105, pp 1-6

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