Challenges to increase the AI and ET markets in Brazil
| Autor: | Pietro Sampaio Baruselli, Bruna Lima Chechin Catussi, Emiliana de Oliveira Santana Batista, Laís Ângelo de Abreu, Laísa da Garcia da Silva, Flávia Morag Elliff |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_treatment
reproductive efficiency economic return Artificial insemination Biology 03 medical and health sciences Agricultural science 0302 clinical medicine Congress Paper medicine Productivity embryo transfer 030219 obstetrics & reproductive medicine General Veterinary Dairy herds Economic return 0402 animal and dairy science 04 agricultural and veterinary sciences Zebu 040201 dairy & animal science Embryo transfer Economic sustainability Genetic gain Animal Science and Zoology synchronization |
| Zdroj: | Animal Reproduction Animal Reproduction, Volume: 16, Issue: 3, Pages: 364-375, Published: 28 NOV 2019 |
| ISSN: | 1984-3143 |
| Popis: | Artificial insemination (AI) and embryo transfer (ET) are the most widely used biotechnologies in the world with the goal of increasing genetic gain and improving reproductive efficiency of beef and dairy herds. The protocols for ovulation synchronization for timed AI (TAI) or ET (TET) are tools that allow artificial insemination or transfer of a high number of embryos in a pre-established moment and without the necessity of estrous detection. Currently, 86% of inseminations in Brazil are performed using TAI (13.6 million TAI out of a total of 15.4 million doses of semen marketed in 2018). With the use of TAI, it was possible to verify that the percentage of artificially inseminated females in Brazil went from 5.8% in 2002 to 13.1% in 2018. The ET market also presented considerable growth in the last 20 years. There was an increase of approximately 8 fold in the number of produced embryos, escalating from 50,000 in 1999 to 375,000 in 2017. In this period, there was a significant increase on the in vitro embryo production, which represented 92.1% of embryos produced in Brazil in 2017. Also, in this period, there was an increase on the embryo production of dairy breeds and reduction on the embryo production of zebu breeds in comparison to data from the early 2000’s. TET increases significantly the number of recipients suitable to receive an embryo. After synchronization, 75 to 85% of recipients present a suitable CL for ET without estrous detection. Currently, many synchronization and resynchronization protocols for TAI/TET have been studied to attend different managements, breeds and animal categories, with predictable and satisfactory results. With the intensification of the use of these biotechnologies, it is possible to obtain elevated reproductive efficiency with increase on the genetic gain, which determines greater productivity and economic return for dairy and beef farms. However, the challenge to keep the market growing in the next decade could depend on some factors, such as: increase of the extension services for producers and of the extension training for specialists, improvement of the technological advances to develop more efficient and cost-effective products and practical protocols, increase the integration between universities, research institutes, veterinarians and industries and also, asses market demand for production of animal protein with higher quality, efficiency and environmental and economic sustainability. |
| Databáze: | OpenAIRE |
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