Superovulation and embryo production in tropical adapted Bos taurus (Caracu) and Bos indicus (Nelore) cows
The aim of this study was to compare ovarian response and embryo production of superovulated Bos indicus and Bos taurus cows adapted to the environmental conditions from São Paulo State, Brazil. Ninety non-lactating cows from Caracu ( Bos taurus, n=40) and Nelore (Bos indicus, n=50) were treated wit...
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| Format: | Article |
| Language: | English |
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Instituto de Zootecnia
2011-01-01
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| Series: | Boletim de Indústria Animal |
| Subjects: | |
| Online Access: | http://revistas.bvs-vet.org.br/bia/article/view/7204 |
| _version_ | 1818543536687022080 |
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| author | Rafael Herrera Alvarez Antônio Campanha Martinez Rita Maria Ladeira Pires |
| author_facet | Rafael Herrera Alvarez Antônio Campanha Martinez Rita Maria Ladeira Pires |
| author_sort | Rafael Herrera Alvarez |
| collection | DOAJ |
| description | The aim of this study was to compare ovarian response and embryo production of superovulated Bos indicus and Bos taurus cows adapted to the environmental conditions from São Paulo State, Brazil. Ninety non-lactating cows from Caracu ( Bos taurus, n=40) and Nelore (Bos indicus, n=50) were treated with an intravaginal device containing progesterone (1.38 mg; CIDRB ®, Pfizer Animal Health, Montreal, Québec, Canada) and 2.5 mg, intramuscularly (IM), of estradiol benzoate (Estrogin®, Farmavet, São Paulo, Brazil). Four days later, all animals were treated with multiple IM injections of 400 IU of FSH (Pluset®, Calier, Spain) in decreasing doses (75–75; 75–50; 50–25, and 25–25 IU) at 12-h intervals over 4 days. On the seventh day, CIDR-B device was removed and cows received, IM, 150 ìg of cloprostenol (Veteglan®, Calier, Spain). Cows were then inseminated 48 and 62 h after cloprostenol treatment and embryos were recovered non-surgically seven days after first insemination. Differences in the number of corpora lutea (CL) number, total number of structures (ova/embryos), and number of transferable embryos were analyzed by Student t test. There was no difference (P > 0.05) in the average number of CL, total ova/embryos and transferable embryos of Caracu (11.4 ± 3.3; 8.6 ± 2.6 e 6.0 ± 2.4) and Nelore (12.0 ± 4.1; 9.0 ± 4.3 e 5.1 ± 2.9) cows, respectively. These results suggest that Caracu and Nelore cows superovulated in tropical climate had similar ovarian responses and embryo production. |
| first_indexed | 2024-12-11T22:36:41Z |
| format | Article |
| id | doaj.art-18d29ab08ef34380922a23a973f36231 |
| institution | Directory Open Access Journal |
| issn | 0067-9615 1981-4100 |
| language | English |
| last_indexed | 2024-12-11T22:36:41Z |
| publishDate | 2011-01-01 |
| publisher | Instituto de Zootecnia |
| record_format | Article |
| series | Boletim de Indústria Animal |
| spelling | doaj.art-18d29ab08ef34380922a23a973f362312022-12-22T00:47:56ZengInstituto de ZootecniaBoletim de Indústria Animal0067-96151981-41002011-01-01681156410Superovulation and embryo production in tropical adapted Bos taurus (Caracu) and Bos indicus (Nelore) cowsRafael Herrera Alvarez0Antônio Campanha Martinez1Rita Maria Ladeira Pires2Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Polo Regional de Desenvolvimento Tecnológico dos Agronegócios do Centro Sul, Piracicaba, SPUniversidade Estadual de Maringá, Faculdade de Medicina Veterinária, Umuarama, PRSecretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Pesquisa e Desenvolvimento em Genética e Reprodução Animal, Laboratório de Biotecnologia Aplicada á Produção Animal, Nova Odessa, SPThe aim of this study was to compare ovarian response and embryo production of superovulated Bos indicus and Bos taurus cows adapted to the environmental conditions from São Paulo State, Brazil. Ninety non-lactating cows from Caracu ( Bos taurus, n=40) and Nelore (Bos indicus, n=50) were treated with an intravaginal device containing progesterone (1.38 mg; CIDRB ®, Pfizer Animal Health, Montreal, Québec, Canada) and 2.5 mg, intramuscularly (IM), of estradiol benzoate (Estrogin®, Farmavet, São Paulo, Brazil). Four days later, all animals were treated with multiple IM injections of 400 IU of FSH (Pluset®, Calier, Spain) in decreasing doses (75–75; 75–50; 50–25, and 25–25 IU) at 12-h intervals over 4 days. On the seventh day, CIDR-B device was removed and cows received, IM, 150 ìg of cloprostenol (Veteglan®, Calier, Spain). Cows were then inseminated 48 and 62 h after cloprostenol treatment and embryos were recovered non-surgically seven days after first insemination. Differences in the number of corpora lutea (CL) number, total number of structures (ova/embryos), and number of transferable embryos were analyzed by Student t test. There was no difference (P > 0.05) in the average number of CL, total ova/embryos and transferable embryos of Caracu (11.4 ± 3.3; 8.6 ± 2.6 e 6.0 ± 2.4) and Nelore (12.0 ± 4.1; 9.0 ± 4.3 e 5.1 ± 2.9) cows, respectively. These results suggest that Caracu and Nelore cows superovulated in tropical climate had similar ovarian responses and embryo production.http://revistas.bvs-vet.org.br/bia/article/view/7204caracuraças bovinas adaptadassuperovulaçãotransferência de embriões |
| spellingShingle | Rafael Herrera Alvarez Antônio Campanha Martinez Rita Maria Ladeira Pires Superovulation and embryo production in tropical adapted Bos taurus (Caracu) and Bos indicus (Nelore) cows Boletim de Indústria Animal caracu raças bovinas adaptadas superovulação transferência de embriões |
| title | Superovulation and embryo production in tropical adapted Bos taurus (Caracu) and Bos indicus (Nelore) cows |
| title_full | Superovulation and embryo production in tropical adapted Bos taurus (Caracu) and Bos indicus (Nelore) cows |
| title_fullStr | Superovulation and embryo production in tropical adapted Bos taurus (Caracu) and Bos indicus (Nelore) cows |
| title_full_unstemmed | Superovulation and embryo production in tropical adapted Bos taurus (Caracu) and Bos indicus (Nelore) cows |
| title_short | Superovulation and embryo production in tropical adapted Bos taurus (Caracu) and Bos indicus (Nelore) cows |
| title_sort | superovulation and embryo production in tropical adapted bos taurus caracu and bos indicus nelore cows |
| topic | caracu raças bovinas adaptadas superovulação transferência de embriões |
| url | http://revistas.bvs-vet.org.br/bia/article/view/7204 |
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