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Reproductive performance of fixed-time artificial insemination in swine and factors for the technology success Ciência Rural
Quirino,Monike; Pinheiro,Ana Raquel Almeida; Santos,Joabel Tonellotto dos; Ulguim,Rafael da Rosa; Mellagi,Ana Paula Gonçalves; Bortolozzo,Fernando Pandolfo.
ABSTRACT: Fixed-time artificial insemination (FTAI) is a reproductive technology that aids in obtaining an appropriate time to perform single artificial insemination (AI), thus reducing the number of inseminations per sow bred. FTAI protocols can either be based on estrus detection or day of weaning, aiming to synchronize ovulation using ovulation inducers. The protocols involving estrus detection usually employ porcine luteinizing hormone (pLH) as an inducer and, in general, satisfactory reproductive performance is observed. For protocols based on weaning day, the main hormone used is analog of gonadotropin-releasing hormone such as triptorelin and buserelin. Regardless of the protocol, the number of piglets born is usually not affected by FTAI. However,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ovulation; Synchronization; Single insemination; Sows; Gilts.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000200700
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