{"id":"https://openalex.org/W7224130951","doi":"https://doi.org/10.5424/sjar/2026243-21898","title":"Effectiveness of progestagens and prostaglandin-based protocols for oestrus synchronisation in Ouled Djellal ewes during the non-breeding season in north-eastern Algeria","display_name":"Effectiveness of progestagens and prostaglandin-based protocols for oestrus synchronisation in Ouled Djellal ewes during the non-breeding season in north-eastern Algeria","publication_year":2026,"publication_date":"2026-10-28","ids":{"openalex":"https://openalex.org/W7224130951","doi":"https://doi.org/10.5424/sjar/2026243-21898"},"language":"en","primary_location":{"id":"doi:10.5424/sjar/2026243-21898","doi":"https://doi.org/10.5424/sjar/2026243-21898","is_oa":true,"landing_page_url":"https://doi.org/10.5424/sjar/2026243-21898","pdf_url":"https://sjar.revistas.csic.es/index.php/sjar/article/download/21898/6823","source":{"id":"https://openalex.org/S125861851","display_name":"Spanish Journal of Agricultural Research","issn_l":"1695-971X","issn":["1695-971X","2171-9292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","ddh","doaj","dongbi-c","fecyt-seal","jufo-1","latindex","norway-1","oarl","poland-40","russia-white-list-1"],"host_organization":"https://openalex.org/P4310321139","host_organization_name":"Spanish National Research Council","host_organization_lineage":["https://openalex.org/P4310321139"],"host_organization_lineage_names":["Spanish National Research Council"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Spanish Journal of Agricultural Research","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://sjar.revistas.csic.es/index.php/sjar/article/download/21898/6823","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5131278775","display_name":"Zeyneb Mehallaine","orcid":"https://orcid.org/0000-0002-7203-2787","observed_orcids":["https://orcid.org/0000-0002-7203-2787"]},"institutions":[{"id":"https://openalex.org/I206961696","display_name":"University of Biskra","ror":"https://ror.org/05fr5y859","country_code":"DZ","type":"education","lineage":["https://openalex.org/I206961696"]}],"countries":["DZ"],"is_corresponding":false,"raw_author_name":"Zeyneb Mehallaine","raw_affiliation_strings":["Department of Agricultural Sciences, Laboratory of Ecosystems Diversity and Dynamics of Agricultural Production Systems in Arid Zones (DEDSPAZA), Mohamed Khider University of Biskra. 07000 Biskra, Algeria"],"raw_orcid":"https://orcid.org/0000-0002-7203-2787","affiliations":[{"raw_affiliation_string":"Department of Agricultural Sciences, Laboratory of Ecosystems Diversity and Dynamics of Agricultural Production Systems in Arid Zones (DEDSPAZA), Mohamed Khider University of Biskra. 07000 Biskra, Algeria","institution_ids":["https://openalex.org/I206961696"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033263619","display_name":"Kahramen Deghnouche","orcid":"https://orcid.org/0000-0002-9979-9793","observed_orcids":["https://orcid.org/0000-0002-9979-9793","https://orcid.org/0009-0008-5023-6456"]},"institutions":[{"id":"https://openalex.org/I206961696","display_name":"University of Biskra","ror":"https://ror.org/05fr5y859","country_code":"DZ","type":"education","lineage":["https://openalex.org/I206961696"]}],"countries":["DZ"],"is_corresponding":false,"raw_author_name":"Kahramen Deghnouche","raw_affiliation_strings":["Department of Agricultural Sciences, Laboratory of Ecosystems Diversity and Dynamics of Agricultural Production Systems in Arid Zones (DEDSPAZA), Mohamed Khider University of Biskra. 07000 Biskra, Algeria"],"raw_orcid":"https://orcid.org/0009-0008-5023-6456","affiliations":[{"raw_affiliation_string":"Department of Agricultural Sciences, Laboratory of Ecosystems Diversity and Dynamics of Agricultural Production Systems in Arid Zones (DEDSPAZA), Mohamed Khider University of Biskra. 07000 Biskra, Algeria","institution_ids":["https://openalex.org/I206961696"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079437851","display_name":"Djalel Eddine Gherissi","orcid":"https://orcid.org/0000-0003-1615-1658","observed_orcids":["https://orcid.org/0000-0003-1615-1658"]},"institutions":[{"id":"https://openalex.org/I1288970718","display_name":"Mohamed-Cherif Messaadia University","ror":"https://ror.org/04pn9tn44","country_code":"DZ","type":"education","lineage":["https://openalex.org/I1288970718"]}],"countries":["DZ"],"is_corresponding":false,"raw_author_name":"Djalel Eddine Gherissi","raw_affiliation_strings":["Laboratory of Animal Production, Biotechnology, and Health (PABIOS), Institute of Agronomic and Veterinary Sciences, University of Souk Ahras. 41000 Souk Ahras, Algeria"],"raw_orcid":"https://orcid.org/0000-0003-1615-1658","affiliations":[{"raw_affiliation_string":"Laboratory of Animal Production, Biotechnology, and Health (PABIOS), Institute of Agronomic and Veterinary Sciences, University of Souk Ahras. 41000 Souk Ahras, Algeria","institution_ids":["https://openalex.org/I1288970718"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5013377526","display_name":"Luis Angel Zarazaga","orcid":"https://orcid.org/0000-0003-0726-7990","observed_orcids":["https://orcid.org/0000-0003-0726-7990"]},"institutions":[{"id":"https://openalex.org/I78880903","display_name":"Universidad de Huelva","ror":"https://ror.org/03a1kt624","country_code":"ES","type":"education","lineage":["https://openalex.org/I78880903"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Luis \u00c1ngel Zarazaga","raw_affiliation_strings":["Department of Agroforestry Science, University of Huelva. 21819 Huelva, Spain"],"raw_orcid":"https://orcid.org/0000-0003-0726-7990","affiliations":[{"raw_affiliation_string":"Department of Agroforestry Science, University of Huelva. 21819 Huelva, Spain","institution_ids":["https://openalex.org/I78880903"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.89449785,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"24","issue":"3","first_page":"21898","last_page":"21898"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10584","display_name":"Reproductive Physiology in Livestock","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1102","display_name":"Agronomy and Crop Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T10584","display_name":"Reproductive Physiology in Livestock","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1102","display_name":"Agronomy and Crop Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10594","display_name":"Genetic and phenotypic traits in livestock","score":0.0,"subfield":{"id":"https://openalex.org/subfields/1311","display_name":"Genetics"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10364","display_name":"Reproductive Biology and Fertility","score":0.0,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/estrus-synchronization","display_name":"estrus synchronization","score":0.9959999918937683},{"id":"https://openalex.org/keywords/ouled-djellal-sheep","display_name":"Ouled Djellal sheep","score":0.8320000171661377},{"id":"https://openalex.org/keywords/ewes","display_name":"ewes","score":0.8619999885559082},{"id":"https://openalex.org/keywords/seasonal-anestrus","display_name":"seasonal anestrus","score":0.8119999766349792},{"id":"https://openalex.org/keywords/progesterone","display_name":"progesterone","score":0.828000009059906},{"id":"https://openalex.org/keywords/prostaglandin-f2alpha","display_name":"prostaglandin F2alpha","score":0.8569999933242798},{"id":"https://openalex.org/keywords/gonadotropin-releasing-hormone","display_name":"gonadotropin-releasing hormone","score":0.9570000171661377},{"id":"https://openalex.org/keywords/pregnancy-rate","display_name":"pregnancy rate","score":0.9049999713897705},{"id":"https://openalex.org/keywords/litter-size","display_name":"litter size","score":0.7360000014305115},{"id":"https://openalex.org/keywords/reproductive-performance","display_name":"reproductive performance","score":0.7429999709129333},{"id":"https://openalex.org/keywords/non-breeding-season","display_name":"non-breeding season","score":0.6980000138282776}],"concepts":[{"id":"https://openalex.org/C1998276","wikidata":"https://www.wikidata.org/wiki/Q388121","display_name":"Estrous cycle","level":2,"score":0.8011999726295471},{"id":"https://openalex.org/C2779429622","wikidata":"https://www.wikidata.org/wiki/Q1780867","display_name":"Litter","level":2,"score":0.6040999889373779},{"id":"https://openalex.org/C140793950","wikidata":"https://www.wikidata.org/wiki/Q168091","display_name":"Animal science","level":1,"score":0.5568000078201294},{"id":"https://openalex.org/C102874275","wikidata":"https://www.wikidata.org/wiki/Q2914623","display_name":"Seasonal breeder","level":2,"score":0.5108000040054321},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.49790000915527344},{"id":"https://openalex.org/C518429986","wikidata":"https://www.wikidata.org/wiki/Q964401","display_name":"Fertility","level":3,"score":0.42309999465942383},{"id":"https://openalex.org/C2908963076","wikidata":"https://www.wikidata.org/wiki/Q17001879","display_name":"Estrus synchronization","level":4,"score":0.4196000099182129},{"id":"https://openalex.org/C2776608385","wikidata":"https://www.wikidata.org/wiki/Q749637","display_name":"Corpus luteum","level":3,"score":0.40400001406669617},{"id":"https://openalex.org/C2777702977","wikidata":"https://www.wikidata.org/wiki/Q187082","display_name":"Ovulation","level":3,"score":0.39399999380111694},{"id":"https://openalex.org/C2779234561","wikidata":"https://www.wikidata.org/wiki/Q11995","display_name":"Pregnancy","level":2,"score":0.39340001344680786},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.34950000047683716},{"id":"https://openalex.org/C59659247","wikidata":"https://www.wikidata.org/wiki/Q11990","display_name":"Reproduction","level":2,"score":0.33399999141693115},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.3061999976634979},{"id":"https://openalex.org/C2776537878","wikidata":"https://www.wikidata.org/wiki/Q7239894","display_name":"Pregnancy rate","level":3,"score":0.27959999442100525},{"id":"https://openalex.org/C134018914","wikidata":"https://www.wikidata.org/wiki/Q162606","display_name":"Endocrinology","level":1,"score":0.27639999985694885},{"id":"https://openalex.org/C71315377","wikidata":"https://www.wikidata.org/wiki/Q11364","display_name":"Hormone","level":2,"score":0.2702000141143799}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.5424/sjar/2026243-21898","doi":"https://doi.org/10.5424/sjar/2026243-21898","is_oa":true,"landing_page_url":"https://doi.org/10.5424/sjar/2026243-21898","pdf_url":"https://sjar.revistas.csic.es/index.php/sjar/article/download/21898/6823","source":{"id":"https://openalex.org/S125861851","display_name":"Spanish Journal of Agricultural Research","issn_l":"1695-971X","issn":["1695-971X","2171-9292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","ddh","doaj","dongbi-c","fecyt-seal","jufo-1","latindex","norway-1","oarl","poland-40","russia-white-list-1"],"host_organization":"https://openalex.org/P4310321139","host_organization_name":"Spanish National Research Council","host_organization_lineage":["https://openalex.org/P4310321139"],"host_organization_lineage_names":["Spanish National Research Council"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Spanish Journal of Agricultural Research","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:9ddb4fd1e1fe4a9199cb76e1090005d0","doi":null,"is_oa":false,"landing_page_url":"https://doaj.org/article/9ddb4fd1e1fe4a9199cb76e1090005d0","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Spanish Journal of Agricultural Research, Vol 24, Iss 3 (2026)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.5424/sjar/2026243-21898","doi":"https://doi.org/10.5424/sjar/2026243-21898","is_oa":true,"landing_page_url":"https://doi.org/10.5424/sjar/2026243-21898","pdf_url":"https://sjar.revistas.csic.es/index.php/sjar/article/download/21898/6823","source":{"id":"https://openalex.org/S125861851","display_name":"Spanish Journal of Agricultural Research","issn_l":"1695-971X","issn":["1695-971X","2171-9292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","ddh","doaj","dongbi-c","fecyt-seal","jufo-1","latindex","norway-1","oarl","poland-40","russia-white-list-1"],"host_organization":"https://openalex.org/P4310321139","host_organization_name":"Spanish National Research Council","host_organization_lineage":["https://openalex.org/P4310321139"],"host_organization_lineage_names":["Spanish National Research Council"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Spanish Journal of Agricultural Research","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Zero hunger","score":0.8409000039100647,"id":"https://metadata.un.org/sdg/2"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7224130951.pdf","grobid_xml":"https://content.openalex.org/works/W7224130951.grobid-xml"},"referenced_works_count":40,"referenced_works":["https://openalex.org/W1974386871","https://openalex.org/W1984999143","https://openalex.org/W1995252172","https://openalex.org/W2002557692","https://openalex.org/W2003122717","https://openalex.org/W2003440748","https://openalex.org/W2017342831","https://openalex.org/W2051015809","https://openalex.org/W2053211026","https://openalex.org/W2058357833","https://openalex.org/W2069227581","https://openalex.org/W2094137396","https://openalex.org/W2097976806","https://openalex.org/W2147805774","https://openalex.org/W2156436519","https://openalex.org/W2622864216","https://openalex.org/W2763100726","https://openalex.org/W2799715702","https://openalex.org/W2799761169","https://openalex.org/W2802524152","https://openalex.org/W2885002613","https://openalex.org/W2888905842","https://openalex.org/W2914948392","https://openalex.org/W2931211882","https://openalex.org/W2990113136","https://openalex.org/W2992886643","https://openalex.org/W3002202649","https://openalex.org/W3043687619","https://openalex.org/W3092312133","https://openalex.org/W3128235316","https://openalex.org/W3192948386","https://openalex.org/W3196469010","https://openalex.org/W3204017805","https://openalex.org/W4200138042","https://openalex.org/W4220854086","https://openalex.org/W4286542847","https://openalex.org/W4313530268","https://openalex.org/W4386149886","https://openalex.org/W4392720890","https://openalex.org/W4404143800"],"related_works":["https://openalex.org/W7144293432","https://openalex.org/W1657676246","https://openalex.org/W4391752309","https://openalex.org/W2935125799","https://openalex.org/W2514389261","https://openalex.org/W7203909617","https://openalex.org/W2888905842","https://openalex.org/W7161276362","https://openalex.org/W4402458941","https://openalex.org/W3196275157"],"abstract_inverted_index":{"Aim":[0],"of":[1,10,49,78],"study:":[2,50],"This":[3],"study":[4,52],"aimed":[5],"to":[6,33,40,150],"evaluate":[7],"the":[8,26,35,177,194],"effectiveness":[9],"short-":[11],"and":[12,15,74,101,117,133,139,155,165,171,185],"long-term":[13],"progesterone-":[14],"prostaglandin-based":[16],"protocols":[17],"for":[18,233],"oestrus":[19,131],"synchronisation":[20],"in":[21,55,62,237],"Ouled":[22,65,82,238],"Djellal":[23,66,83,239],"ewes":[24,84,240],"during":[25,241],"non-breeding":[27],"season.":[28],"The":[29,51,120],"main":[30],"objective":[31],"was":[32,53],"identify":[34],"most":[36,231],"efficient":[37],"hormonal":[38],"strategy":[39],"enhance":[41],"reproductive":[42,235],"performance":[43,236],"under":[44],"seasonal":[45,242],"anoestrus":[46],"conditions.":[47],"Area":[48],"conducted":[54],"a":[56,69],"semi-arid":[57],"agroecological":[58],"area":[59],"(Souk":[60],"Ahras)":[61],"Algeria,":[63],"where":[64],"sheep":[67],"are":[68],"predominant":[70],"local":[71],"breed.":[72],"Material":[73],"methods:":[75],"A":[76],"total":[77],"128":[79],"healthy,":[80],"multiparous":[81],"were":[85,144,167],"divided":[86],"into":[87],"six":[88],"groups.":[89],"Three":[90],"groups":[91,111],"received":[92,112],"progestagen-based":[93],"treatments:":[94],"7-day":[95,102],"progesterone":[96,99,103,152],"(P4Short),":[97],"14-day":[98],"(P4Long),":[100],"with":[104,228],"GnRH":[105],"at":[106,146,206],"sponge":[107],"insertion":[108],"(GP4Short).":[109],"Two":[110],"double":[113],"prostaglandin":[114],"injections:":[115],"2PGF2\u03b1":[116],"2PGF2\u03b1+":[118],"GnRH.":[119],"sixth":[121],"group":[122],"served":[123],"as":[124],"an":[125],"untreated":[126],"control.":[127],"Reproductive":[128],"parameters":[129],"included":[130],"onset":[132,164],"response,":[134],"pregnancy,":[135],"fertility,":[136],"conception":[137],"rates,":[138],"litter":[140],"size.":[141],"Blood":[142],"samples":[143],"collected":[145],"four":[147],"time":[148],"points":[149],"assess":[151],"(P4)":[153],"levels,":[154],"natural":[156],"mating":[157],"lasted":[158],"40":[159],"days.":[160],"Main":[161],"results:":[162],"Oestrus":[163],"response":[166,180],"comparable":[168],"between":[169],"P4Short":[170,191],"P4Long":[172],"groups,":[173],"but":[174],"GP4Short":[175,203],"achieved":[176],"highest":[178,195],"oestrous":[179],"(100%),":[181],"pregnancy":[182],"rate":[183],"(91.7%),":[184],"fertility":[186],"(87.5%).":[187],"At":[188],"day":[189,207],"5,":[190],"Group":[192,204],"recorded":[193],"P4":[196],"level":[197],"(3.33":[198],"\u00b1":[199,210],"0.82":[200],"ng/mL),":[201,212],"while":[202],"peaked":[205],"18":[208],"(8.48":[209],"1.20":[211],"both":[213],"indicating":[214],"successful":[215],"ovulation,":[216],"unlike":[217],"control":[218],"group.":[219],"Research":[220],"highlights:":[221],"Short-term":[222],"progestagen":[223],"protocols,":[224],"especially":[225],"when":[226],"combined":[227],"GnRH,":[229],"proved":[230],"effective":[232],"improving":[234],"anoestrus.":[243]},"counts_by_year":[],"updated_date":"2026-11-01T11:40:01.658920","created_date":"2026-10-29T00:00:00"}
