000118959 001__ 118959
000118959 005__ 20240319081010.0
000118959 0247_ $$2doi$$a10.3390/vetsci9070370
000118959 0248_ $$2sideral$$a130324
000118959 037__ $$aART-2022-130324
000118959 041__ $$aeng
000118959 100__ $$aPalacios, C.
000118959 245__ $$aEfficiency of Artificial Insemination at Natural Estrus in Organic Churra Ewes
000118959 260__ $$c2022
000118959 5060_ $$aAccess copy available to the general public$$fUnrestricted
000118959 5203_ $$aHormonal treatments used in the artificial insemination (AI) of sheep can cause several physiological problems that can affect negatively fertility and animal health; however, AI protocols based on the detection of natural estrus offer a more sustainable option and can achieve high fertility. In this study, an AI protocol at natural estrus in organic Churra sheep was performed. In the first phase (AI protocol development), 125 ewes were exocervically inseminated, and their fertility was assessed based on the following factors: number of AI, physiological state, body condition, estrus detection–AI interval, and vaginal fluids in cervix. That protocol was repeated for six consecutive years. In all individuals, fertilities based on the timing of insemination after estrus detection were very high. Lactating ewes produced better results than did dry ewes, which was probably because of the better feeding of the former. In addition, double insemination increased the fertility of ewes whose estrus was detected within 16 h of onset. Body condition and amount of vaginal fluid were correlated with fertility. Exocervical inseminations at natural estrus can produce acceptable fertility and prolificity in Churra ewes.
000118959 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/PTQ-09-02-01982
000118959 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000118959 590__ $$a2.4$$b2022
000118959 592__ $$a0.524$$b2022
000118959 591__ $$aVETERINARY SCIENCES$$b29 / 144 = 0.201$$c2022$$dQ1$$eT1
000118959 593__ $$aVeterinary (miscellaneous)$$c2022$$dQ1
000118959 594__ $$a2.3$$b2022
000118959 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000118959 700__ $$0(orcid)0000-0003-2827-3054$$aAbecia, J. A.$$uUniversidad de Zaragoza
000118959 700__ $$aPlaza, J.
000118959 700__ $$aHidalgo, C.
000118959 700__ $$aFuente, L. F. de la
000118959 7102_ $$12008$$2700$$aUniversidad de Zaragoza$$bDpto. Produc.Animal Cienc.Ali.$$cÁrea Producción Animal
000118959 773__ $$g9, 7 (2022), 370 [11 pp.]$$tVeterinary Sciences$$x2306-7381
000118959 8564_ $$s845363$$uhttps://zaguan.unizar.es/record/118959/files/texto_completo.pdf$$yVersión publicada
000118959 8564_ $$s2596834$$uhttps://zaguan.unizar.es/record/118959/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000118959 909CO $$ooai:zaguan.unizar.es:118959$$particulos$$pdriver
000118959 951__ $$a2024-03-18-15:05:41
000118959 980__ $$aARTICLE