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Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.contributor | Universidade Estadual Paulista (Unesp) | - |
Autor(es): dc.contributor | Texas A&M University | - |
Autor(es): dc.contributor | Agropecuária Fazenda Brasil | - |
Autor(es): dc.creator | Noronha, Isabella M. [UNESP] | - |
Autor(es): dc.creator | Cooke, Reinaldo F. | - |
Autor(es): dc.creator | Martins, Cícero F.G. | - |
Autor(es): dc.creator | Oliveira Filho, Ramiro V. | - |
Autor(es): dc.creator | Pohler, Ky G. | - |
Autor(es): dc.creator | Vasconcelos, José L.M. [UNESP] | - |
Data de aceite: dc.date.accessioned | 2022-02-22T00:26:20Z | - |
Data de disponibilização: dc.date.available | 2022-02-22T00:26:20Z | - |
Data de envio: dc.date.issued | 2020-12-11 | - |
Data de envio: dc.date.issued | 2020-12-11 | - |
Data de envio: dc.date.issued | 2020-08-01 | - |
Fonte completa do material: dc.identifier | http://dx.doi.org/10.1016/j.anireprosci.2020.106535 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/11449/199055 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/11449/199055 | - |
Descrição: dc.description | Two experiments were conducted to evaluate if an additional prostaglandin F2α (PG) injection during an estradiol-based estrous synchronization treatment regimen affects pregnancy rates resulting from fixed-time artificial insemination (FTAI) in Nelore cows. In Experiment 1, 1039 cows were administered estradiol benzoate and an intravaginal progesterone releasing device (CIDR) on d -11, an injection of PG on d -4, with CIDR removal and administration of estradiol cypionate and eCG occurring on d -2, and FTAI on d 0. Cows were administered an additional injection of PG (PG2) or saline (PG1) on d -2. Percentage pregnancy per FTAI on d 30 was greater (P = 0.01) in cows of the PG2 than PG1 group (54.5 % and 46.6 %, respectively). In Experiment 2, there was use of the same treatment regimen for estrous synchronization of 934 cows as that for Experiment 1 followed by FTAI, with there being diagnosis of whether cows had or did not have a corpus luteum on d -4. Response to estrous synchronization, largest follicle diameter at FTAI, and pregnancy per FTAI were greater (P ≤ 0.05) in cows of the PG2 than PG1 group with a body condition score (BCS) < 5.0 at FTAI (81.2 % and 72.6 %, 11.9 and 11.2 mm, 55.5 and 45.6 %; respectively). These treatment responses did not differ (P ≥ 0.18) in cows with BCS ≥ 5.0. Collectively, results indicate that treatment with PG2 increased pregnancy per FTAI in B. indicus cows deficient in body energy reserves, by enhancing follicle development and estrous synchronization response. | - |
Descrição: dc.description | School of Veterinary Medicine and Animal Science Sao Paulo State University (UNESP) | - |
Descrição: dc.description | Department of Animal Science Texas A&M University | - |
Descrição: dc.description | Agropecuária Fazenda Brasil | - |
Descrição: dc.description | School of Veterinary Medicine and Animal Science Sao Paulo State University (UNESP) | - |
Idioma: dc.language | en | - |
Relação: dc.relation | Animal Reproduction Science | - |
???dc.source???: dc.source | Scopus | - |
Palavras-chave: dc.subject | Beef cows | - |
Palavras-chave: dc.subject | Fixed-time artificial insemination | - |
Palavras-chave: dc.subject | Pregnancy | - |
Palavras-chave: dc.subject | Prostaglandin F2α | - |
Título: dc.title | Administering an additional prostaglandin F2α injection to Bos indicus beef cows during a treatment regimen for fixed-time artificial insemination | - |
Tipo de arquivo: dc.type | livro digital | - |
Aparece nas coleções: | Repositório Institucional - Unesp |
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