Single fixed-time post-cervical insemination in gilts with buserelin

Suárez-Usbeck, A. ; Mitjana, O. (Universidad de Zaragoza) ; Tejedor, M.T. (Universidad de Zaragoza) ; Bonastre, C. (Universidad de Zaragoza) ; Sistac, J. ; Ubiergo, A. ; Falceto, M.V. (Universidad de Zaragoza)

Resumen: Current protocols for gilts recommend the deposit of multiple semen doses in the cervix each 12–24 h after estrus detection. Our objectives were: (1) to determine the effect of buserelin and a single fixed-time artificial insemination using the new post-cervical artificial insemination technique (FTAI-PCAI) on reproductive and productive performance in gilts, and (2) to compare this protocol with conventional estrus detection and double PCAI without hormonal induction. In the control group (C; n = 240), gilts were inseminated twice (8 and 12 h from estrus onset). Gilts in the treatment group (T; n = 226) received buserelin (10 µg, intramuscular) 120 h after altrenogest treatment (18 d) and one single PCAI 30–33 h after buserelin administration. The groups did not differ in reproductive and production performance (p > 0.05). The T group showed greater piglet birth weight and shorter estrus duration (p < 0.001). Delivery batch length differed significantly depending on the season (p < 0.05); the shortest length corresponded to autumn. Both groups only differed significantly in spring (p = 0.018), with a shorter length in the T group. This new FTAI-PCAI protocol with buserelin is recommended in gilts, helping with optimization of genetic diffusion, boars, and semen doses. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Idioma: Inglés

DOI: 10.3390/ani11061567

Año: 2021

Publicado en: Animals 11, 6 (2021), 1567 [13 pp.]
ISSN: 2076-2615

Factor impacto JCR: 3.231 (2021)

Categ. JCR: VETERINARY SCIENCES rank: 16 / 145 = 0.11 (2021) - Q1 - T1
Categ. JCR: AGRICULTURE, DAIRY & ANIMAL SCIENCE rank: 13 / 62 = 0.21 (2021) - Q1 - T1

Factor impacto CITESCORE: 2.7 - Veterinary (Q2) - Agricultural and Biological Sciences (Q2)

Factor impacto SCIMAGO: 0.61 - Veterinary (miscellaneous) (Q1) - Animal Science and Zoology (Q1)

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Genética (Dpto. Anatom.,Embri.Genét.Ani.)
Área (Departamento): Área Medicina y Cirugía Animal (Dpto. Patología Animal)