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Abstract

The objective of the present study was to evaluate the effects of clinical mastitis at the beginning of lactation on reproductive performance of dairy cows in Algeria. Calving to first insemination and calving to conception intervals, number of insemination per conception and conception rate at the ...

Author(s)
Bouamra, M.; Ghozlane, F.; Ghozlane, M. K.
Publisher
Academic Journals, Lagos, Nigeria
Citation
African Journal of Biotechnology, 2017, 16, 2, pp 91-95
Abstract

The recent field trials indicate that acceptable fertility with frozen semen may not differ significantly from the fertility of commercial fresh-chilled semen. The success rate of insemination is considered to be result of the interaction of three major factors: (1) the quality of frozen-thawed...

Author(s)
Horváth, A.; Szenci, O.
Publisher
Herman Ottó Institute Nonprofit Ltd., Budapest, Hungary
Citation
Magyar Állatorvosok Lapja, 2018, 140, 6, pp 323-331
AbstractFull Text

A cross sectional study was conducted from November 2015 to May 2016 with the objective of assessing the problems associated with artificial insemination service in dairy cattle in five selected peasant associations of Tullo district, west Hararghe, Ethiopia. A structured questionnaire was used for ...

Author(s)
Riyad Juneyid; Anwar Hassen; Jelalu Kemal; Kiros Welay
Publisher
Ethiopian Veterinary Association, Addis Ababa, Ethiopia
Citation
Ethiopian Veterinary Journal, 2017, 21, 2, pp 62-74
Abstract

The use of artificial insemination in cows makes possible breeding of superior animals, which are known as enhancer individuals. However, the major limitation for its expansion has been the necessity for estrus detection. Thus, programs of fixed time artificial insemination (FTAI), without the...

Author(s)
Cavalieri, F. L. B.; Colombo, A. H. B.; Andreazzi, M. A.; Gonçalves, É. A.
Publisher
Universidade Federal do Paraná, UFPR, Palotina, Brazil
Citation
Archives of Veterinary Science, 2016, 21, 1, pp 25-31
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

Cytogenetic studies of mares are widely used in practice (in case of embryonic death this is a mandatory test) in countries with developed horse breeding. Genetic evaluation of Equus caballus is also widely performed. Nevertheless, in the available literature, we could not find publications on the...

Author(s)
Tkachev, A. V.; Tkacheva, O. L.; Rossokha, V. I.
Publisher
Agricultural Biology Editorial Office, NPO, Moscow, Russia
Citation
Sel'skokhozyaĭstvennaya Biologiya, 2018, 53, 2, pp 302-308
Abstract

The present study was conducted to analyse the factors influencing the success of artificial insemination (AI) in pigs using extended fresh semen in rural smallholder pig farms. One hundred female pigs from Rulindo and Gicumbi districts in Northern Region of Rwanda were artificially inseminated...

Author(s)
Celestin, M.; Valentine, N.; Isaac, M.; Fabrice, M.; Oscar, N.; François, B.; Vianey, M. J. M.
Publisher
Academic Journals, Lagos, Nigeria
Citation
International Journal of Livestock Production, 2019, 10, 4, pp 101-109
Abstract

The principle of ovsynch-timed artificial insemination and the methods and reproductive application of estrus synchronization and ovsynch-timed artificial insemination in dairy cattle were summarized. Accurate and timely estrus detection of dairy cattle in their estrus cycle was the foundation for ...

Author(s)
Zhao MingLi; Zhang Shen; Hao HaiSheng; Zhao XueMing; Du WeiHua; Wang Dong; Zhu HuaBin
Publisher
Guoji Shudian (Institute of Scientific and Technological Information of China, China Publications Centre), Beijing, China
Citation
Chinese Journal of Animal Science, 2015, 51, 17, pp 80-86
AbstractFull Text

The objective of this study was to evaluate the reproductive performance of gilts subjected to post-cervical artificial insemination (PCAI) compared to traditional artificial insemination (TAI). We also evaluated the degree of difficulty in bypassing the cervix, time required to perform the ...

Author(s)
Ternus, E. M.; Vanz, A. R.; Lesskiu, P. E.; Preis, G. M.; Serafini, L.; Consoni, W.; Traverso, S. D.; Cristani, J.
Publisher
FEPMVZ - Editora, Belo Horizonte, Brazil
Citation
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2017, 69, 4, pp 777-784
AbstractFull Text

The effects parity, herd production level, number of cows per herd, insemination season and lactation stage on the relationships between daily milk and first insemination success of 55 685 cows were examined. The statistical analysis was performed using the χ2 test and the decision tree technique....

Author(s)
Siatka, K.; Sawa, A.; Piwczyński, D.; Bogucki, M.; Krężel-Czopek, S.
Publisher
Polish Academy of Sciences, Institute of Genetics and Animal Breeding, Jastrzebiec, Poland
Citation
Animal Science Papers and Reports, 2018, 36, 3, pp 275-285

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