Evaluación de la tasa de preñez comparando el método de inseminación artificial profunda y convencional en vacas lecheras sincronizadas a tiempo fijo (IATF)
Artificial insemination (AI) is a reproductive biotechnology that allows ensuring generational replacement rates in a cattle herd in a more efficient and economical way, the objective of this research was to evaluate the pregnancy rate comparing the deep and conventional artificial insemination meth...
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| Médium: | bachelorThesis |
| Jazyk: | spa |
| Vydáno: |
2023
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| Témata: | |
| On-line přístup: | https://dspace.ueb.edu.ec/handle/123456789/6129 |
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Přidat tag | Shrnutí: | Artificial insemination (AI) is a reproductive biotechnology that allows ensuring generational replacement rates in a cattle herd in a more efficient and economical way, the objective of this research was to evaluate the pregnancy rate comparing the deep and conventional artificial insemination method in dairy cows synchronized at fixed time (FTAI), Methodologically, this research was carried out in the province of Chimborazo, in the Chambo canton, in the sector of San Gerardo del Monte, 10 multiparous cows in production and 10 primiparous cows were selected, Five animals were considered in each treatment in a randomized manner to avoid biases related to the synchronization protocol or the category to which the animals belonged, in such a way that T1 referred to the technique of deep artificial insemination in cows, T2 deep artificial insemination in primiparous cows, and T3 conventional artificial insemination in primiparous cows, T3 conventional artificial insemination in cows and T4 conventional artificial insemination in primiparous cows, of which the synchronization protocols were applied, Ov-synch for primiparous cows and J-synch for multiparous cows in production, the evaluated variable and main research focus was the pregnancy rate. The results obtained from the percentage or pregnancy rate according to the t-student test showed that there were significant statistical differences (p<0.05) in this variable, finding that the deep artificial insemination variant obtained 80% of pregnant cows for both cows and primiparous cows, that is, 4 out of every 5 animals considered per treatment, however, the conventional artificial insemination obtained 60% of pregnant cows, showing that 3 pregnant females out of every 5 animals considered in each treatment. In conclusion, deep artificial insemination improved the percentage or pregnancy rate in the present investigation. |
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