000118981 001__ 118981
000118981 005__ 20240319081013.0
000118981 0247_ $$2doi$$a10.1007/s11259-022-09990-9
000118981 0248_ $$2sideral$$a130170
000118981 037__ $$aART-2022-130170
000118981 041__ $$aeng
000118981 100__ $$aBarbanoj, J.
000118981 245__ $$aThe combination of melatonin implants and prostaglandin F2 alpha improves lamb production in a late-autumn mating season
000118981 260__ $$c2022
000118981 5060_ $$aAccess copy available to the general public$$fUnrestricted
000118981 5203_ $$aTo determine the effect of the combination of melatonin implants and prostaglandin (PG) F2 alpha on reproductive performance in the late breeding season (Dec at the northern hemisphere), 500 Lacaune ewes were divided into four groups. On day 0 (7 Nov), 150 ewes were treated with a melatonin (M) implant. From that group, 64 ewes (M + 1PGF group) were injected with 10-mg prostaglandin (PG) F2 alpha 34 d after melatonin implantation (11 Dec). The remaining 86 ewes (M group) were treated with melatonin, only. Another group of 75 ewes (2PGF group) was treated with double injection of PGF2 alpha (9 days between the first and second application) (2 and 11 Dec), and 75 non-treated ewes (C group) were the control group. The remaining 200 ewes of the flock were not considered in the study. Rams (n = 23) were introduced on 11 Dec. The percentage of prolificacy, lambing and fecundity rates were calculated. Lambing rate did not differ among groups (M: 79%; M + 1PGF: 78%; 2PGF: 69%; C: 71%). The M + 1PGF group had a higher % of prolificacy than the 2PGF group (P < 0.10) and the C group (P = 0.06) (M: 1.65 +/- 0.07; M + 1PGF: 1.74 +/- 0.09; 2PGF: 1.54 +/- 0.08; C: 1.54 +/- 0.07 lambs/lambing) (P < 0.05), and a higher fecundity than the 2PGF group (P < 0.05) and the C group (P < 0.10) (M: 1.30 +/- 0.09; M + 1PGF: 1.36 +/- 0.11; 2PGF: 1.07 +/- 0.10; C: 1.08 +/- 0.09 lambs/ewe). Ewes implanted with melatonin had significantly higher prolificacy (1.69 +/- 0.06 lambs/lambing) (P < 0.05) and fecundity (1.33 +/- 0.07 lambs/ewe) (P = 0.01) than did ewes that did not receive melatonin (1.54 +/- 0.04 and 1.08 +/- 0.04, resp.). In conclusion, melatonin implants increased the number of lambs born per ewe in a late-autumn mating season, and the effect was greatest if it was given in combination with PGF2 alpha administration at ram introduction.
000118981 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000118981 590__ $$a2.2$$b2022
000118981 592__ $$a0.526$$b2022
000118981 591__ $$aVETERINARY SCIENCES$$b38 / 144 = 0.264$$c2022$$dQ2$$eT1
000118981 593__ $$aVeterinary (miscellaneous)$$c2022$$dQ1
000118981 593__ $$aMedicine (miscellaneous)$$c2022$$dQ2
000118981 594__ $$a2.7$$b2022
000118981 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000118981 700__ $$0(orcid)0000-0003-2827-3054$$aAbecia, J. A.$$uUniversidad de Zaragoza
000118981 7102_ $$12008$$2700$$aUniversidad de Zaragoza$$bDpto. Produc.Animal Cienc.Ali.$$cÁrea Producción Animal
000118981 773__ $$g46 (2022), 1339–1342$$pVet. res. commun.$$tVeterinary Research Communications$$x0165-7380
000118981 8564_ $$s474801$$uhttps://zaguan.unizar.es/record/118981/files/texto_completo.pdf$$yVersión publicada
000118981 8564_ $$s2376065$$uhttps://zaguan.unizar.es/record/118981/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000118981 909CO $$ooai:zaguan.unizar.es:118981$$particulos$$pdriver
000118981 951__ $$a2024-03-18-15:18:49
000118981 980__ $$aARTICLE