2008
DOI: 10.1007/s11250-008-9233-3
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Conception of Jersey cattle in Turkey

Abstract: To determine the effects of insemination season (IS; dry: May through October and rainy: November through April), lactation number (LN; heifers, primiparous or multiparous) and their interaction on non-return rate (NRR), conception rate (CR) to first-service and pregnancy loss (PL) of Jersey cattle in Turkey, over 1468 lactation records from 510 Jersey dairy cows were used. There was an interaction between LN x IS on NRR, CR to first-service (p < 0.01) and PL (p < 0.05). The NRR and CR to first-service of heif… Show more

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Cited by 3 publications
(2 citation statements)
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“…The CR decreased significantly on the day after AI was associated with the amount of rainfall (Badinga et al 1985). The CR was higher in Jersey dairy cows inseminated during dry season than in rainy season (Soydan et al 2009). In our study, the highest monthly average of climatic variables such as T mean , T max , and THI mean was observed during spring months (April through June), and RH min and WS mean during summer months (July through September).…”
Section: Resultsmentioning
confidence: 94%
“…The CR decreased significantly on the day after AI was associated with the amount of rainfall (Badinga et al 1985). The CR was higher in Jersey dairy cows inseminated during dry season than in rainy season (Soydan et al 2009). In our study, the highest monthly average of climatic variables such as T mean , T max , and THI mean was observed during spring months (April through June), and RH min and WS mean during summer months (July through September).…”
Section: Resultsmentioning
confidence: 94%
“…Das modificações relacionadas à reprodução de vacas Holandesas, encontra-se a redução dos níveis séricos de estrógeno, do grau de dominância folicular e manifestação do estro, redução da atividade folicular, da qualidade oocitária e do embrião, além de modificações do ambiente uterino que dificultam a implantação do embrião (De Rensis e Scaramuzzi, 2003;Chang et al 2017). Beltran e Vasconcelos (2008) e Soydan et al (2009) observaram em vacas Holandesa e Jersey a diminuição da eficiência reprodutiva em determinadas épocas do ano, de acordo com a localidade e sistema de manejo, sendo que a taxa de concepção diminuiu nos períodos mais quentes até mesmo em vacas aclimatadas ao calor.…”
Section: Introductionunclassified