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Abstract

Background: Heifer raising represents 15-20% of the total milk production costs, but the management of replacement heifers is often neglected. The goal of replacement heifer programmes is to reduce raising costs, while maximizing future profitability. Objectives: The aim of our study was to survey...

Author(s)
Fodor, I.; Walter, B.; Monostori, A.; Abonyi-Tóth, Z.; Ózsvári, L.
Publisher
Herman Ottó Institute Nonprofit Ltd., Budapest, Hungary
Citation
Magyar Állatorvosok Lapja, 2018, 140, 2, pp 67-74
Abstract

The authors examined the ovarian function of Prolific Merino sheep breed by hormone-analytical methods in spring and early summer. Blood plasma progesterone level was measured for following up the ovarian function; examining the reaction of ewes for cycle induction methods, rate of conception and...

Author(s)
Dankó, G. N.; Gyimóthy, G.; Oláh, J.; Kulcsár, M.; Magyar, K.; Vass, N.; Posta, J.; Balogh, P.; Jávor, A.
Publisher
Magyar Mezógazdaság KFT, Budapest, Hungary
Citation
Magyar Állatorvosok Lapja, 2012, 134, 2, pp 83-88
Abstract

Background: The reproductive performance of the Hungarian dairy cattle population has been continuously declining since the early '80s. Objectives: The aim of our study was to survey the reproductive management practices and performance in Hungarian dairy herds in order to assess the current...

Author(s)
Fodor, I.; Búza, L.; Ózsvári, L.
Publisher
NAKVI, Budapest, Hungary
Citation
Magyar Állatorvosok Lapja, 2016, 138, 11, pp 653-662
Abstract

The authors examined the ovarian function of two sheep breeds using hormone analytical and laparoscopic methods between April and June. It was observed that the fertility in spring and early summer breeding was usually lower, and alternative methods such as hormonal treatments and biotechnological...

Author(s)
NovotninéDankó, G.; Márkus, S.; Árnyasi, M.; Magyar, K.
Publisher
Állattenyésztési és Takarmányozási Kutatóintézet, Herceghalom, Hungary
Citation
Állattenyésztés és Takarmányozás, 2009, 58, 3, pp 205-212
Abstract

Many arguments can be enumerated besides the application of artificial insemination (AI) in sheep breeding. In spite of the fact that these arguments are well known in the professional spheres, the AI is rarely used for mating in Hungary. The ratio of the inseminated ewes compared to the female...

Author(s)
Szabados, T.; Gergátz, E.; Vitinger, E.; Gyökér, E.
Publisher
Állattenyésztési és Takarmányozási Kutatóintézet, Herceghalom, Hungary
Citation
Állattenyésztés és Takarmányozás, 2005, 54, 1, pp 27-36
Abstract

The authors' objective was to introduce a dynamic voluntary waiting period in a Holstein-Friesian dairy farm and making interventions in order to decrease the days open from calving to conception and the Al index, and to increase the first service conception rate from calving until rebreeding and...

Author(s)
Szelényi, Z.; Bajcsy, Á. C.; Horváth, A.; Simon, J.; Szenci, O.
Publisher
Magyar Mezógazdaság KFT, Budapest, Hungary
Citation
Magyar Állatorvosok Lapja, 2010, 132, 9, pp 529-536
Abstract

Dairy cows were treated with 50 µg of a GnRH analogue preparation (1.0 ml Gonavet, Veyx) in two experiments (n=106 and 362 cows, respectively) during the 11th and 13th day after insemination for increasing the probability of conception by helping the function of the corpus luteum and its...

Author(s)
Köcski, L.
Publisher
Magyar Mezógazdaság Kiadó KFT, Budapest, Hungary
Citation
Magyar Állatorvosok Lapja, 2005, 127, 7, pp 394-398
Abstract

Laparoscopic inseminations were carried out with deep-frozen semen in 43 sheep (in 36 yearling sheep and 7 ewes) out of the breeding season. Synchronization was achieved by Chronogest (Intervet) intravaginal sponges. The sponge was removed on the 12th day of treatment. 24 hours before sponge...

Author(s)
Magyar, K.; Komlósi, I.; Veress, L.
Citation
Magyar Állatorvosok Lapja, 1989, 44, 8, pp 475-477
Abstract

On large-scale farms, insemination of 1211 meat rabbits and 202 Angoras with simultaneous injection of GnRH or its analogues resulted in fertility levels 15-20% lower than those obtained from natural mating.

Author(s)
Sinkovics, G.; Medgyes, I.; Paljak, J.
Citation
Magyar Állatorvosok Lapja, 1983, 38, 11, pp 687-692
Abstract

An unspecified number of Angora rabbit ejaculates were stored at 37°C until macroscopic and microscopic investigations of sperm motility and concentration were completed. Prior to insemination, ejaculates were diluted 1:5-1:10 with Harváth's diluent (plus 10% egg yolk). Using this method, CRs of...

Author(s)
Zöldág, L.; Gábor, G.; Sincovics, G.
Citation
Magyar Állatorvosok Lapja, 1988, 43, 9, pp 517-519

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