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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
Abstract

Suboptimal reproductive performance is a common problem in dairy herds worldwide. Open cows after insemination can be found by efficient heat detection, or by early pregnancy diagnosis. The authors reviewed the factors relating to the accuracy of the early pregnancy diagnosis methods used on dairy...

Author(s)
Fodor, I. Ó. L.
Publisher
NAKVI, Budapest, Hungary
Citation
Magyar Állatorvosok Lapja, 2017, 139, 1, pp 3-15
Abstract

Cryopreserved boar semen has been commercially available since 1975 but nowadays the use of frozen-thawed sperm in artificial insemination technologies represents around 1% of total inseminations. This limited use is mainly due to the poor reproductive output obtained with frozen-thawed sperm...

Author(s)
Horváth, A.; Pribenszky, C.; Szenci, O.
Publisher
NAKVI, Budapest, Hungary
Citation
Magyar Állatorvosok Lapja, 2014, 136, 2, pp 90-96
Abstract

Although cryopreserved boar semen has been available since 1975, the use of frozen-thawed sperm in artificial insemination technologies represents only around 1% of total inseminations, mainly due to the poor reproductive output compared to chilled-fresh semen. The authors give a review of the...

Author(s)
Horváth, A.; Pribenszky, C.; Szenci, O.
Publisher
NAKVI, Budapest, Hungary
Citation
Magyar Állatorvosok Lapja, 2014, 136, 3, pp 141-147
Abstract

Background: The number of artificial insemination (AI) doses, which can be obtained from an ejaculate of a single boar have major economic implications in porcine AI centres. This needs a quick and an acceptable precise concentration measurements which could be performed with different methods....

Author(s)
Horváth, A.; Lénárt, M.; Füleki, Z.; Lénárt, L.; Lang, Zs.; Szenci, O.
Publisher
NAKVI, Budapest, Hungary
Citation
Magyar Állatorvosok Lapja, 2017, 139, 4, pp 195-201
Abstract

The fertilizing spermatozoon has to have a series of attributes in order to achieve its goal: acceptable morphology, proper metabolism for energy production, progressive motility, capacity for hyperactive motility, etc. In addition, the genetic package of the fertilizing spermatozoon must contain...

Author(s)
Kakasi, B.; Nagy, Sz. T.
Publisher
Állattenyésztési és Takarmányozási Kutatóintézet, Herceghalom, Hungary
Citation
Állattenyésztés és Takarmányozás, 2016, 65, 1, pp 88-91
Abstract

The oestrus of Black Racka ewes (n=5) was synchronized during non-breeding season, and fixed time cervical artificial insemination (CAI) was firstly performed with frozen/thawed (FT) racka semen. The oestrus was synchronized with gestagen sponge (Chronogest) and with PG 600 treatment im. The ewes...

Author(s)
Egerszegi, I.; Sarlós, P.; Rátky, J.
Publisher
Magyar Mezógazdaság KFT, Budapest, Hungary
Citation
Magyar Állatorvosok Lapja, 2013, 135, 6, pp 345-350
AbstractFull Text

The aim of study was to develop a reliable semen collection and cryopreservation method for gene banking in European wild rabbit (Oryctolagus cuniculus). The animals were kept in cages individually. The bucks were trained for ejaculation into an artificial vagina. The device is hand-held beneath a...

Author(s)
Debnár, V. J.; Kerekes, A.; Torda, O.; Altbäcker, V.; Bodó, S.
Publisher
Szent István University, Gödöllő, Hungary
Citation
Animal Welfare, Ethology and Housing Systems, 2017, 13, 1, pp 12-17
AbstractFull Text

We started to chart the genetic diversity and purity of the Carpathian honeybee substance by using genomic DNA markers. In different families, genotypes of queen bee can be determined by using STR markers and we can choose which the best for long-term ex-situ storage is. We can use the...

Author(s)
Tokár, A.; Stéger, V.; Heltai, B.; Szepesi, K.; Debnár, V. J.; Kerekes, A.; Antal, A.; Bodó, S.
Publisher
Szent István University, Gödöllő, Hungary
Citation
Animal Welfare, Ethology and Housing Systems, 2018, 14, 2, pp 92-99
Abstract

Background: Transrectal ultrasonography is a valuable tool in the reproductive management of dairy cattle, however, it is still not used in a large proportion of the Hungarian dairies. Objectives: The aim of our study was to quantify the impact of the reproductive ultrasound examinations on the...

Author(s)
Fodor, I.; Cziger, Zs.; Ózsvári, L.
Publisher
NAKVI, Budapest, Hungary
Citation
Magyar Állatorvosok Lapja, 2016, 138, 9, pp 515-522

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