000065300 001__ 65300
000065300 005__ 20240123082600.0
000065300 0247_ $$2doi$$a10.2527/JAS2017.1951
000065300 0248_ $$2sideral$$a104294
000065300 037__ $$aART-2017-104294
000065300 041__ $$aeng
000065300 100__ $$aMacías, A.
000065300 245__ $$aTechnical Note: A new device for cervical insemination of sheep - design and field test1
000065300 260__ $$c2017
000065300 5060_ $$aAccess copy available to the general public$$fUnrestricted
000065300 5203_ $$aDeep semen deposition, avoiding retrograde flow, lesions and stress, has proved to be very important in the success of sheep AI. The objective of the present study was to develop a new, suitable antiretrograde flow device for sheep cervical AI (DARIO) that enables deep deposition of semen into the cervix without any modifications to the procedures currently used, and to compare the fertility, fecundity, and prolificacy rates between DARIO and a traditional catheter. Field tests were performed on 16 farms actively participating in the non-profit National Association of Rasa Aragonesa Breeders genetic selection scheme and where sheep management was similar. A total of 242 AI lots were considered, including 1, 299 ewes; 126 lots (662 ewes) were inseminated using DARIO, and 116 lots (637 ewes) using a traditional commercially-available catheter (control group). Several factors affecting AI results were included in the model for mean comparison between DARIO and control groups (farm and ram as random factors; catheter, year and photoperiod as fixed effects; catheter vó photoperiod interaction). The type of catheter had a significant effect on fertility (P < 0.01) and fecundity rates (P < 0.01) but no significant effect was detected on the prolificacy rate (P = 0.45). For fertility rate (percentage of ewes lambing after AI), means ¬± SE for DARIO and control groups were 59.44 ¬± 2.13% and 49.60 ¬± 2.48%, respectively; for fecundity rates, means ¬± SE for DARIO and control groups were 0.99 ¬± 0.04 and 0.82 ¬± 0.05 lambs/inseminated ewe, respectively, and, for prolificacy rates, means ¬± SE for DARIO and control groups were 1.68 ¬± 0.04 and 1.63 ¬± 0.04 lambs/ewe lambing, respectively. Fertility rate was greater in the decreasing photoperiod (P = 0.01). Significant effects were found for both year (P < 0.05) and farm (P < 0.01) on fertility, fecundity, and prolificacy rates. Neither ram nor catheter vó photoperiod showed any significant effects on the variables investigated (P > 0.05). Overall, the use of DARIO instead of the traditional commercially-available catheter increased both fertility and fecundity rates; the marginal mean differences were 9.05 pregnant ewes per 100 inseminated and 0.15 lambs per inseminated ewe, respectively.
000065300 536__ $$9info:eu-repo/grantAgreement/ES/DGA/INNOVA-A1-034-15
000065300 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000065300 590__ $$a1.711$$b2017
000065300 591__ $$aAGRICULTURE, DAIRY & ANIMAL SCIENCE$$b12 / 59 = 0.203$$c2017$$dQ1$$eT1
000065300 592__ $$a0.848$$b2017
000065300 593__ $$aAnimal Science and Zoology$$c2017$$dQ1
000065300 593__ $$aFood Science$$c2017$$dQ1
000065300 593__ $$aMedicine (miscellaneous)$$c2017$$dQ2
000065300 593__ $$aGenetics$$c2017$$dQ3
000065300 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000065300 700__ $$0(orcid)0000-0003-0042-8800$$aFerrer, L. M.$$uUniversidad de Zaragoza
000065300 700__ $$0(orcid)0000-0002-2724-2785$$aRamos, J. J.$$uUniversidad de Zaragoza
000065300 700__ $$0(orcid)0000-0003-2558-982X$$aLidón, I.$$uUniversidad de Zaragoza
000065300 700__ $$0(orcid)0000-0002-7891-609X$$aRebollar, R.$$uUniversidad de Zaragoza
000065300 700__ $$0(orcid)0000-0002-7822-6646$$aLacasta, D.$$uUniversidad de Zaragoza
000065300 700__ $$0(orcid)0000-0001-5026-5144$$aTejedor, M. T.$$uUniversidad de Zaragoza
000065300 7102_ $$11001$$2420$$aUniversidad de Zaragoza$$bDpto. Anatom.,Embri.Genét.Ani.$$cÁrea Genética
000065300 7102_ $$15002$$2720$$aUniversidad de Zaragoza$$bDpto. Ingeniería Diseño Fabri.$$cÁrea Proyectos de Ingeniería
000065300 7102_ $$11009$$2617$$aUniversidad de Zaragoza$$bDpto. Patología Animal$$cÁrea Medicina y Cirugía Animal
000065300 773__ $$g95, 12 (2017), 5263-5269$$pJ. anim. sci.$$tJournal of Animal Science$$x0021-8812
000065300 8564_ $$s412573$$uhttps://zaguan.unizar.es/record/65300/files/texto_completo.pdf$$yVersión publicada
000065300 8564_ $$s120818$$uhttps://zaguan.unizar.es/record/65300/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000065300 909CO $$ooai:zaguan.unizar.es:65300$$particulos$$pdriver
000065300 951__ $$a2024-01-23-08:21:05
000065300 980__ $$aARTICLE