Preferencia de selección en toros holstein friesian por catálogos utilizados en el cantón Bolívar - Manabí

This research aimed to analyze the selection preferences of Holstein Friesian bulls through genetic catalogs in Bolívar canton, Manabí province. The study was conducted over four months with a diagnostic, explanatory, and mixed approach, using surveys administered to 26 cattle breeders and 5 importers selected through simple random sampling. The analysis focused on the genetic catalogs used, the quality of imported semen compared to the elite breed list, and the main selection criteria of the producers. Results show that breeders prioritize genetic background, productive indexes, and physical traits such as body conformation, udder, and legs, seeking a balance between productivity, reproduction, and longevity. Personal experience and peer recommendations significantly influence purchase decisions, while cost remains a barrier to widespread adoption. The need for incentives such as subsidies and support programs was identified to encourage broader use of imported semen. All of the semen distributed by importers comes from the United States, with high genetic quality highlighted, especially in milk production and fertility. Semen is preserved through cryopreservation, and sexed semen technology is used for offspring selection. Strict health certification is also required. Demand is steady, with higher use in medium and large farms, while small-scale producers gain access through discounts and financing. Additionally, distributors provide free training in artificial insemination as part of their technical support services.

• প্রধান লেখক: Alcívar Holguín, Nallely Cristina (author)
• অন্যান্য লেখক: Bravo Ormaza, Anthony Josephe (author)
• বিন্যাস: bachelorThesis
• ভাষা: spa
• প্রকাশিত: 2025
• বিষয়গুলি: Toros; Holstein Friesian; Ganaderos; Importadores; Semen
• অনলাইন ব্যবহার করুন: http://repositorio.espam.edu.ec/handle/42000/2763