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Animal Science Database

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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: 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

Artificial insemination (AI) with cooled stallion semen has increased markedly during the last decades in all countries, but fertility is often lower than when fresh semen or natural mating is used. The objective of this study was to examine field data (1634, cycles 523 Standardbred (SB) mares, 575 ...

Author(s)
Kareskoski, M.; Venhoranta, H.; Virtala, A. M.; Katila, T.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2019, 127, pp 7-14
Abstract

To assess the reproductive performance of cows/heifers in smallholder dairy farms, retrospective and longitudinal studies based on artificial insemination were conducted. The recommended basic AI procedures were kept and applied for study animals. In the longitudinal study 86.4% of the dairy cattle ...

Author(s)
Jemal, H.; Lemma, A.; Bekana, M.
Publisher
CIPAV Foundation, Cali, Colombia
Citation
Livestock Research for Rural Development, 2016, 28, 5, pp Article 81
Abstract

Artificial insemination is beginning to find its place in Algerian dairy cattle farms. The bovine artificial insemination (AI) assessments for a three-year period in the semi-arid wilaya of Sétif on 4 855 insemination acts carried out by 5 inseminators in 3 664 cows of 5 different breeds belonging...

Author(s)
Mouffok, C.; Allouni, A.; Semara, L.; Belkasmi, F.
Publisher
CIPAV Foundation, Cali, Colombia
Citation
Livestock Research for Rural Development, 2019, 31, 4, pp Article 49
AbstractFull Text

The aim of this work was to analyze the effect of intravaginal administration of commercial preparation Supergestran (GnRH) as a substitute for its intramuscular administration to induce ovulation of inseminated does. GnRH analysis of reproductive performance is divided into experiments focused on...

Author(s)
Fik, M.
Publisher
Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture, Nitra, Slovakia
Citation
Journal of Microbiology, Biotechnology and Food Sciences, 2018, 7, 5, pp 511-515
Abstract

Semen quantity and quality are affected by transportation and frequent semen collection in ram when they are transported from nucleus flock to target farms for in situ artificial insemination (AI) of ewes with fresh semen. The current study was designed to introduce the best method of fresh semen...

Author(s)
Hashemi, M.; Safdarian, M.; Hashemi, S. M. R.
Publisher
Indian Council of Agricultural Research, New Delhi, India
Citation
Indian Journal of Animal Sciences, 2018, 88, 11, pp 1254-1257
Abstract

This study aimed to (i) assess the prevalence of cytological endometritis (CYTO) diagnosed at artificial insemination (AI); (ii) evaluate the effect of CYTO on the pregnancy outcome of the same AI sample; and (iii) determine the risk factors associated with CYTO diagnosed at AI in repeat breeder...

Author(s)
Pascottini, O. B.; Hostens, M.; Opsomer, G.
Publisher
Wiley, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2018, 53, 2, pp 559-561
Abstract

In the current era of genomic selection, there is an increased demand to collect semen from genomically selected sires at a young age. The objective of this study was to assess the effect of bull age, ejaculate number, and season of collection on semen production (ejaculate volume, sperm...

Author(s)
Murphy, E. M.; Kelly, A. K.; O'Meara, C.; Eivers, B.; Lonergan, P.; Fair, S.
Publisher
Oxford University Press, Cary, USA
Citation
Journal of Animal Science, 2018, 96, 6, pp 2408-2418
Abstract

Our aim was to investigate insemination techniques in order to improve pregnancy rates of artificial insemination (AI) using sex-sorted semen (sexed AI) in cattle in tropical and subtropical (T/ST) regions. In T/ST regions, the pregnancy rates by sexed AI are reportedly the lowest in the hottest...

Author(s)
Chang LianBen; Chou ChihJen; Shiu JiaShian; Tu PoAn; Gao ShiXuan; Peng ShaoYu; Wu ShinnChih
Publisher
Springer, Amsterdam, Netherlands
Citation
Tropical Animal Health and Production, 2017, 49, 6, pp 1157-1162

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