Cookies on Animal Science Database

Like most websites we use cookies. This is to ensure that we give you the best experience possible.

 

Continuing to use www.cabi.org  means you agree to our use of cookies. If you would like to, you can learn more about the cookies we use.

Animal Science Database

Supporting your research in animal production, welfare and health

 Sign up to receive our Veterinary & Animal Sciences eNewsletter, book alerts and offers direct to your inbox.

Results per page:

Search results

Abstract

The embryo production results after use of sex-sorted sperm to inseminate superovulated cows (SOV) have not been very encouraging so far, due to the low quantity of sperms used as well as their short half-life. In a previous study conducted in Brazil in Holstein cows, it was shown that using the...

Author(s)
Argudo, D. E.; Soria, C. A.; Durán, J. C.; Bravo, S. E.; Alvarado, J. P.; Alberio, R. H.
Publisher
Veterinaria Organizacion S.L., Malaga, Spain
Citation
REDVET, 2018, 19, 4, pp 041811
Abstract

Using a 5-d controlled internal drug-release (CIDR)-Cosynch resynchronization protocol, the objective of this study was to determine the effect of the initial GnRH injection on pregnancy per artificial insemination (P/AI) to the second artificial insemination in lactating Holstein dairy cows. On...

Author(s)
Spencer, J. A.; Carnahan, K.; Shafii, B.; Price, W. J.; Dalton, J.; Ahmadzadeh, A.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 9, pp 8524-8531
Abstract

Our objective was to compare the insemination dynamics and time to pregnancy for up to 100 d after the beginning of the artificial insemination period (AIP) for heifers managed with first artificial insemination (AI) service programs that relied primarily on insemination at detected estrus (AIE)...

Author(s)
Masello, M.; Perez, M. M.; Granados, G. E.; Stangaferro, M. L.; Ceglowski, B.; Thomas, M. J.; Giordano, J. O.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 2, pp 1671-1681
Abstract

The objective was to determine the efficiency of insemination with sexed semen at spontaneous estrus and synchronisation of ovulation, and the effects of days in milk, insemination number, parity, and daily milk yield on pregnancy rates in lactating Holstein cows. A total 1,000 first to fourth...

Author(s)
Kurykin, J.; Jalakas, M.; Kaart, T.; Jaakma, Ü.
Publisher
Lietuvos Veterinarijos Akademija, Kaunas, Lithuania
Citation
Veterinarija ir Zootechnika, 2017, No.75, pp 30-35
Abstract

Our objective was to evaluate the effect of a second PGF treatment (25 mg of dinoprost) or a double dose of PGF (50 mg of dinoprost) during a Resynch protocol on luteal regression and pregnancies per artificial insemination (P/AI) in lactating dairy cows. Lactating Holstein cows (n=1,100) were...

Author(s)
Barletta, R. V.; Carvalho, P. D.; Santos, V. G.; Melo, L. F.; Consentini, C. E.; Netto, A. S.; Fricke, P. M.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 2, pp 1730-1736
Abstract

Our objective was to assess the effect of treatment with human chorionic gonadotropin (hCG) 7 d after artificial insemination (AI) or at the time of in vitro-fertilized (IVF) embryo transfer on reproductive outcomes, including progesterone (P4), interferon-tau stimulated gene 15 (ISG15),...

Author(s)
Niles, A. M.; Fricke, H. P.; Carvalho, P. D.; Wiltbank, M. C.; Hernandez, L. L.; Fricke, P. M.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 3, pp 2593-2606
Abstract

Effect of single or double injections of a GnRH-A on the pregnancy rate in Holstein cows given at two different times relative to artificial insemination (AI) is described. Groups of 6 healthy Holstein cows each were given G0P12, injection of Gonadorelin (a GnRH-A, 5 ml at AI and sterile saline (5...

Author(s)
Goli, M.; Jamshidi, H.; Mohammadi, A.
Publisher
Online Journal of Veterinary Research, Toowoomba, Australia
Citation
Online Journal of Veterinary Research, 2016, 20, 2, pp 94-103
Abstract

The effects of addition of gonadotrophin-releasing hormone (GnRH) to a progesterone plus oestradiol-based protocol and timing of insemination in Holstein cows treated for timed AI (TAI) were evaluated. Cows (n=481) received a progesterone device and 2 mg oestradiol benzoate. After 8 days, the...

Author(s)
Ferreira, R. M.; Ayres, H.; Gimenes, L. U.; Torres, F. P.; Lima, F. A.; Veras, M. B.; Guida, T. G.; Sala, R. V.; Baruselli, P. S.
Publisher
CSIRO, Collingwood, Australia
Citation
Reproduction, Fertility and Development, 2017, 29, 3, pp 468-475
Abstract

The objective of this experiment was to evaluate the reproductive performance and herd exit dynamics of dairy cows managed for first service with programs varying in method of submission for insemination and voluntary waiting period (VWP) duration. Holstein cows from a commercial farm in New York...

Author(s)
Stangaferro, M. L.; Wijma, R.; Masello, M.; Giordano, J. O.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 2, pp 1673-1686
Abstract

We hypothesized (1) that neither duration of the Ovsynch program nor dose frequency of PGF would change the proportion of cows with complete luteolysis (progesterone <0.4 ng/mL 72 h after PGF) and (2) that the additional GnRH treatment administered as part of a presynchronization program would not alter the proportion...

Author(s)
Stevenson, J. S.; Sauls, J. A.; Mendonça, L. G. D.; Voelz, B. E.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 10, pp 9575-9590

Refine Results

Sort Order
Author
Geographical Location
Item Type
Language
Organisms
Subject Topics