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Abstract

Our objective was to compare the AI submission rate and pregnancies per artificial insemination (P/AI) at first service of lactating Holstein cows submitted to a Double-Ovsynch protocol and timed artificial insemination (TAI) versus artificial insemination (AI) to a detected estrus after...

Author(s)
Santos, V. G.; Carvalho, P. D.; Maia, C.; Carneiro, B.; Valenza, A.; Fricke, P. M.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 10, pp 8507-8517
Abstract

Objective: In this study, the transcriptome profile of cow experiencing miscarriage during peri-implantation was investigated. Methods: Total transcriptomes were checked by RNA sequencing, and the analyzed by bioinformatics methods, the differentially expressed genes (DEGs) were analysed with...

Author(s)
Zhao GuoLi; Li YanYan; Kang XiaoLong; Huang Liang; Li Peng; Zhou JingHang; Shi YuanGang
Publisher
Asian-Australasian Association of Animal Production Societies, Seoul, Korea Republic
Citation
Asian-Australasian Journal of Animal Sciences, 2019, 32, 1, pp 38-48
Abstract

Objective: To determine if insemination site or pre-ovulatory follicle diameter at fixed-time artificial insemination (FTAI) affects the odds of pregnancy when heifers are inseminated with sexed semen. Methods: The study was conducted in 422 Holstein heifers enrolled into 531 inseminations. ...

Author(s)
Ingenhoff, L.; Hall, E.; Ni, S. R.; House, J. K.
Publisher
Wiley, Melbourne, Australia
Citation
Australian Veterinary Journal, 2017, 95, 9, pp 317-324
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

During the 2010/2011 calving season a remarkably large number of calves were born with umbilical hernia on a dairy farm in Schleswig-Holstein. All calves were descendants of the US Red Holstein bull "Avanti Red" used in artificial insemination. The objective of the present study was to compare the...

Author(s)
Vortmann, T. F.; Lupp, B.; Distl, O.
Publisher
Schlütersche Verlagsgesellschaft GmbH & Co. KG, Hannover, Germany
Citation
Berliner und Münchener Tierärztliche Wochenschrift, 2017, 130, 7/8, pp 364-368
Abstract

The goals of this study were to assess whether the injection of 1 mg of estradiol cypionate (ECP) at 13 days after service of artificial insemination (AI) increases fertility in the study subject and if the same dose injected in the near estrus (20±1 days) after artificial insemination services...

Author(s)
Leyva, C.; Aguilar, D.; Morales, J. L.; Pérez-López, S.; Véliz, F. G.; Soto-Domínguez, A.; Morán Martínez, J.
Publisher
Taylor & Francis, Abingdon, UK
Citation
Journal of Applied Animal Research, 2016, 44, 1, pp 24-26
Abstract

The results of a comparative analysis of the productivity of Holsteinized Black-and-White cows are presented, depending on the age of the first insemination. Primers of the Wis Beck Ideal line had the highest productivity, and it was 10073 kg. They outperformed their contemporaries of the line...

Author(s)
Basonov, O. A.
Publisher
Redaktsiya zhurnala Zootekhniya, Moscow, Russia
Citation
Zootekhniya, 2018, No.11, pp 30-32
Abstract

The objectives of the present study were: (1) to investigate variation in the genetic component of heat stress for nonreturn rate at 56 days after first artificial insemination (NR56); (2) to identify and characterize the genotype by environment interaction (G × E) due to heat stress for NR56 of...

Author(s)
Santana Júnior, M. L.; Bignardi, A. B.; Stefani, G.; El-Faro, L.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2017, 98, pp 101-107

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