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Animal Science Database

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Abstract

Repeat breeding is a reproductive disorder in cattle. Embryo transfer following artificial insemination (AI) improves pregnancy rate by replenishing interferon tau (IFNT), but it results in a notably higher rate of twin occurrence. This study hypothesized that parthenogenetic (PA) embryo transfer...

Author(s)
Funeshima, N.; Noguchi, T.; Onizawa, Y.; Yaginuma, H.; Miyamura, M.; Tsuchiya, H.; Iwata, H.; Kuwayama, T.; Hamano, S.; Shirasuna, K.
Publisher
Society for Reproduction and Development, Tokyo, Japan
Citation
Journal of Reproduction and Development, 2019, 65, 5, pp 443-450
Abstract

Objectives of the present study were to estimate genetic parameters for frozen-thawed semen traits of 271 fertile German Warmblood stallions and genetic correlations with raw semen quality traits. Semen samples were collected from stallions utilized for semen collection and artificial insemination...

Author(s)
Greiser, T.; Sieme, H.; Martinsson, G.; Distl, O.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2019, 210, pp 106194
Abstract

In this study, expected genetic progress and economic benefits from implementing three community-based breeding programs for sheep (CBBP) out- and upscaling strategies were investigated. Strategy 1 is to replicate average existing CBBPs, strategy 2 is to increase the number of breeding males...

Author(s)
Mueller, J. P.; Haile, A.; Getachew, T.; Rekik, M.; Rischkowsky, B.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Small Ruminant Research, 2019, 177, pp 124-132
Abstract

In this single herd observational study, there is investigation of the effects of 81 sires (with 11,424 artificial inseminations) on conception rates in 1790 Holstein cows for 5 years. Sires were categorized based on the published sire conception rate (SCR) into different sire fertility groups...

Author(s)
Abdalla, H.; Elghafghuf, A.; Elsohaby, I.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2019, 209, pp 106147
Abstract

The present study investigated the occurrence of repeat breeding (RB) and constraints in controlling this disease in cattle and buffalo in Punjab. Livestock owners/households (720) constituted the ultimate sampling units for the study. The dairy farmers were categorized into small (5-10 animals),...

Author(s)
Malik, M. H.; Verma, H. K.; Sharma, R. K.
Publisher
Indian Council of Agricultural Research, New Delhi, India
Citation
Indian Journal of Animal Sciences, 2019, 89, 8, pp 837-842
Abstract

Background: Subfertility is one challenge facing the dairy industry as the average Holstein heifer conception rate (HCR), the proportion of heifers that conceive and maintain a pregnancy per breeding, is estimated at 55-60%. Of the loci associated with HCR, few have been validated in an independent ...

Author(s)
Kiser, J. N.; Keuter, E. M.; Seabury, C. M.; Neupane, M.; Moraes, J. G. N.; Dalton, J.; Burns, G. W.; Spencer, T. E.; Neibergs, H. L.
Publisher
BioMed Central Ltd, London, UK
Citation
BMC Genomics, 2019, 20, 576, pp (12 July 2019)
Abstract

Conception rate with the use of sexed semen is lower than that with the use of conventional semen, posing a major problem in the dairy industry. The aim of this study was to understand the risk factors that affect the conception rate after artificial insemination (AI) with conventional and sexed...

Author(s)
Oikawa, K.; Yamazaki, T.; Yamaguchi, S.; Abe, H.; Bai, H.; Takahashi, M.; Kawahara, M.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2019, 135, pp 33-37
Abstract

Artificial insemination (AI) is now used for breeding more than 90% of the sows in most of the world's primary pork producing countries. Despite the advancement of methods to cryopreserve boar semen, frozen semen has not been routinely used on farms because of limited efficiency. Liquid semen on...

Author(s)
Waberski, D.; Riesenbeck, A.; Schulze, M.; Weitze, K. F.; Johnson, L.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2019, 137, pp 2-7
Abstract

A study was conducted to compare conception rates in 71 Tuli and 86 Afrikander beef cattle bred using either artificial insemination (AI) or the bull. Animals were bred using either artificial insemination or natural service at Matopos Research Station. Animals were grouped into three groups of...

Author(s)
Washaya, S.; Tavirimirwa, B.; Dube, S.; Sisito, G.; Tambo, G.; Ncube, S.; Zhakata, X.
Publisher
Springer Berlin, Heidelberg, Germany
Citation
Tropical Animal Health and Production, 2019, 51, 7, pp 1963-1968
Abstract

The objective of this experiment was to evaluate effects of extended-release eprinomectin on fescue toxicosis and impacts on performance and reproduction in fall-calving beef cows. Fall-calving Angus × Simmental multiparous cows [n=335; age=5.8±2.1 yr; 586.5±6.0 kg body weight (BW); 5.48±0.05 body...

Author(s)
Volk, M. J.; Krause, T. R.; Stokes, R. S.; Ireland, F. A.; Shike, D. W.
Publisher
Oxford University Press, Oxford, UK
Citation
Translational Animal Science, 2019, 3, 4, pp 1423-1434

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