Prostaglandin F2α treatment does not hasten ovulation in weaned sows.

Autor: Fagundes DP; Setor de Suínos, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, Bairro Agronomia, 9090, 91540-000, Porto Alegre, RS, Brazil., Lucca MS; Setor de Suínos, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, Bairro Agronomia, 9090, 91540-000, Porto Alegre, RS, Brazil., Gasperin BG; FiBRA - UFPel, Universidade Federal de Pelotas, Campus Capão do Leão, Campus Universitário, S/N, 96160-000, Capão do Leão, RS, Brazil., Missio D; FiBRA-RS, Universidade Federal de Santa Maria, Cidade Universitária, Avenida Roraima, 1000, Camobi, 97105-900, Santa Maria, RS, Brazil., Quirino M; Programa de Pós-graduação em Produção e Sanidade Animal, Instituto Federal Catarinense, Rodovia BR 280, Km 27, 5200, Bairro Colégio Agrícola, 89245-000, Araquari, SC, Brazil., Mellagi APG; Setor de Suínos, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, Bairro Agronomia, 9090, 91540-000, Porto Alegre, RS, Brazil., Gonçalves PBD; FiBRA-RS, Universidade Federal de Santa Maria, Cidade Universitária, Avenida Roraima, 1000, Camobi, 97105-900, Santa Maria, RS, Brazil., Bortolozzo FP; Setor de Suínos, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, Bairro Agronomia, 9090, 91540-000, Porto Alegre, RS, Brazil., Ulguim RR; Setor de Suínos, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, Bairro Agronomia, 9090, 91540-000, Porto Alegre, RS, Brazil. Electronic address: rafael.ulguim@ufrgs.br.
Jazyk: angličtina
Zdroj: Domestic animal endocrinology [Domest Anim Endocrinol] 2024 Jul; Vol. 88, pp. 106854. Date of Electronic Publication: 2024 May 07.
DOI: 10.1016/j.domaniend.2024.106854
Abstrakt: This study evaluated the efficiency of prostaglandin F2α (PGF) to hasten ovulation in weaned sows. In experiment I, weaned sows detected in estrus (0 h) received: no hormone (Control; n = 56); 0.5 mg PGF IM at 0 h and 2 h (PGF0; n = 56); or 0.5 mg PGF IM at 24 h and 26 h (PGF24; n = 55). In experiment II, weaned sows that did not express estrus signs until 72 h after weaning (0 h) were assigned to: no hormone (Control; n = 45); 10 µg buserelin acetate IM at 0 h (Buserelin; n = 43); 0.5 mg PGF IM at 34 h and 36 h (PGF; n = 44); or 10 µg buserelin acetate IM at 0 h plus 0.5 mg PGF IM at 34 h and 36 h (Buserelin + PGF; n = 45). In experiment I, no effect of PGF on the interval treatment onset to ovulation was observed (P > 0.05), and no treatment effect was observed on the relative or cumulative proportion of females that ovulated post-treatment onset (P > 0.05). In experiment II, treatment onset to ovulation interval was shorter for Buserelin group than for PGF group (P < 0.05), and a higher cumulative percentage of Buserelin treated sows ovulated up to 48 h compared to PGF and Control groups (P < 0.01), with no differences from Buserelin + PGF. Treatments did not affect total number of piglets born in both experiments (P > 0.05). In conclusion, PGF did not hasten ovulation timing or affect litter size in weaned sows.
Competing Interests: Declaration of competing interest The authors have no conflict of interest to declare.
(Published by Elsevier Inc.)
Databáze: MEDLINE
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