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 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 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

This study aimed to contribute to understanding the interface between reproductive and nutritional energetic physiology in contemporary dairy cattle. Multiparous Holstein cows (n=32) between 70 and 180 days in milk were used in a study starting 10 d prior to the artificial insemination (AI) date...

Author(s)
Gomez, N. A.; Conley, A. J.; Robinson, P. H.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2018, 189, pp 136-145
Abstract

The objective was to compare luteal area (LA), luteal blood flow (LBF), and progesterone (P4) concentration before and after artificial insemination (AI) in pregnant and open cows in the diestrus preceding insemination and during the first 21 d after insemination. A number of 119 multiparous German ...

Author(s)
Berger, H.; Lietzau, M.; Tichy, A.; Herzog, K.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2017, 104, pp 115-119
Abstract

Objectives. The aim of this study is to evaluate the relationship among ovulatory follicle (OF) size, corpus luteum (CL) volume, and progesterone (P4) serum levels with pregnancy success. Materials and methods. Nineteen Holstein cows located in Bogotá, Colombia with a history of 2 to 6 previous...

Author(s)
Monroy G., M.; Jiménez E., C.; Hernández V., A.
Publisher
University of Cordoba, Monteria, Colombia
Citation
Revista MVZ Cordoba, 2018, 23, 2, pp 6681-6695
AbstractFull Text

This study was conducted to investigate the effect of the interval between the onset of spontaneous estrus and artificial insemination (AI) on reproductive performance and calf sex ratio in repeat breeder Holstein cows. Two hundred eighty lactating Holstein cows were used in this study. The animals ...

Author(s)
Bayrİl, T.; Yİlmaz, O.; Cak, B.
Publisher
Pakistan Agricultural Scientists Forum, Lahore, Pakistan
Citation
JAPS, Journal of Animal and Plant Sciences, 2016, 26, 4, pp 924-930
AbstractFull Text

The objective of this study was to show the risk factors affecting the conception rate in Holstein heifers after synchronization of estrus. A total of 275 Holstein heifers housed in a free barn were used for the experiment. The herd was visited regularly at four week intervals for synchronization...

Author(s)
Yusuf, M.; Nakao, T.; Long, S. T.; Fujita, S.
Publisher
Faculty of Animal Science, Bogor Agricultural University, Bogor, Indonesia
Citation
Media Peternakan, 2016, 39, 3, pp 148-154
Abstract

Sex preselection by flow sorting of X- and Y-sperm has been proven to be an efficient and economically feasible strategy for use in Holstein dairy cow breeding, and previous reports have demonstrated the feasibility of altering the sex ratio in buffalo species by using sexed semen in either ...

Author(s)
Lu YangQing; Liao YanQiong; Zhang Ming; Yang BingZhuang; Liang XianWei; Yang XiaoGan; Lu ShengSheng; Wu ZhuYue; Xu HuiYan; Liang YunBin; Lu KeHuan
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2015, 84, 6, pp 862-867
Abstract

This study investigated whether presynchronization with GnRH 6 days before initiation of the Ovsynch program improved reproductive outcomes in dairy cows. Additionally, postponement of initiation of the Ovsynch program for cows during the metestrus phase by 5 days was investigated to determine if...

Author(s)
Jeong JaeKwan; Choi InSoo; Lee SooChan; Kang HyunGu; Hur TaiYoung; Kim IllHwa
Publisher
Korean Society of Veterinary Clinics, Seoul, Korea Republic
Citation
Journal of Veterinary Clinics, 2016, 33, 4, pp 200-204
Abstract

The present study was conducted to investigate the effect of estradiol benzoate administration before insemination on secondary sex ratio (proportion of male calves at birth) in Holstein dairy cows. Cows (n=1,647) were randomly assigned to 2 experimental groups by parity over a 1-yr period. Cows in ...

Author(s)
Emadi, S. R.; Rezaei, A.; Bolourchi, M.; Hovareshti, P.; Akbarinejad, V.
Publisher
Elsevier Inc, New York, USA
Citation
Domestic Animal Endocrinology, 2014, 48, pp 110-118

Refine Results

Sort Order
Author
Geographical Location
Item Type
Language
Organisms
Subject Topics