Sexually active males prevent the display of seasonal anestrus in female goats
A well-defined season of sexual rest controlled by photoperiod is observed in female sheep and goats during spring and summer, delineating their “anestrous season”; bucks also decrease sexual activity at about the same time. Nutrition and/or socio-sexual stimuli play only secondary roles. However, t...
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| Veröffentlicht in: | Hormones and behavior 2015-03, Vol.69, p.8-15 |
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| creator | Delgadillo, J.A. Flores, J.A. Hernández, H. Poindron, P. Keller, M. Fitz-Rodríguez, G. Duarte, G. Vielma, J. Fernández, I.G. Chemineau, P. |
| description | A well-defined season of sexual rest controlled by photoperiod is observed in female sheep and goats during spring and summer, delineating their “anestrous season”; bucks also decrease sexual activity at about the same time. Nutrition and/or socio-sexual stimuli play only secondary roles. However, the presence of sexually active males can reduce the length of seasonal anestrus. Whether it can also completely suppress anestrus has not been investigated. Here we tested this in goats in 3 experiments, using bucks rendered sexually active out of season by exposure to long days. The continuous presence of these males prevented goats to display seasonal anestrus: 12/14 females cycled the year round, vs. 0/13 and 0/11 for females with un-treated bucks or without bucks (experiment 1). When active bucks were removed, females immediately entered anestrus (7/7 stopped ovulating vs. 1/7 if maintained with active bucks; experiment 2). Finally, 7/7 anestrous does with bucks in sexual rest since 1.5months commenced cycling rapidly during mid-anestrous, when these bucks became sexually active following a treatment with artificial long days, vs. 0/7 with un-treated bucks or no bucks (experiment 3). The presence/withdrawal of active bucks had a highly significant effect in the three experiments (P≤0.002). Therefore, the presence of a mating opportunity can completely override the photoperiodic inhibition of reproduction of females throughout the anestrous season. Results suggest that we must re-evaluate the relative contributions of photoperiod vs. other external cues in controlling seasonal reproduction, thus offering new non-pharmaceutical ways for controlling out-of-season reproduction in small ruminants.
•Female and male goats display seasonal variations of their sexual activity.•Sexual activity of males was induced in the sexual rest by photoperiodic treatments.•Presence of photo-stimulated males prevented the anestrous season in does.•When sexually active bucks were removed, does entered in anestrus. |
| doi_str_mv | 10.1016/j.yhbeh.2014.12.001 |
| format | Article |
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•Female and male goats display seasonal variations of their sexual activity.•Sexual activity of males was induced in the sexual rest by photoperiodic treatments.•Presence of photo-stimulated males prevented the anestrous season in does.•When sexually active bucks were removed, does entered in anestrus.</description><identifier>ISSN: 0018-506X</identifier><identifier>EISSN: 1095-6867</identifier><identifier>DOI: 10.1016/j.yhbeh.2014.12.001</identifier><identifier>PMID: 25497417</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Anestrus - physiology ; Animal Husbandry ; Animal reproduction ; Animals ; Anovulation ; Caprine ; Circannual rhythm ; Courtship ; Female ; GnRH–LH ; Goats ; Goats - physiology ; Life Sciences ; Male ; Olfaction ; Other ; Ovulation - physiology ; Ovulatory activity ; Photoperiod ; Reproduction - physiology ; Ruminantia ; Seasons ; Sexual behavior ; Sexual Behavior, Animal - physiology ; Social Environment</subject><ispartof>Hormones and behavior, 2015-03, Vol.69, p.8-15</ispartof><rights>2014 Elsevier Inc.</rights><rights>Copyright © 2014 Elsevier Inc. All rights reserved.</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c454t-23124075eb16b1125cd5121b2adf9462625024b8682f4b49896d8c227e069a853</citedby><cites>FETCH-LOGICAL-c454t-23124075eb16b1125cd5121b2adf9462625024b8682f4b49896d8c227e069a853</cites><orcidid>0000-0002-1584-7285 ; 0000-0002-5445-7431</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0018506X14002414$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25497417$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-01130505$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Delgadillo, J.A.</creatorcontrib><creatorcontrib>Flores, J.A.</creatorcontrib><creatorcontrib>Hernández, H.</creatorcontrib><creatorcontrib>Poindron, P.</creatorcontrib><creatorcontrib>Keller, M.</creatorcontrib><creatorcontrib>Fitz-Rodríguez, G.</creatorcontrib><creatorcontrib>Duarte, G.</creatorcontrib><creatorcontrib>Vielma, J.</creatorcontrib><creatorcontrib>Fernández, I.G.</creatorcontrib><creatorcontrib>Chemineau, P.</creatorcontrib><title>Sexually active males prevent the display of seasonal anestrus in female goats</title><title>Hormones and behavior</title><addtitle>Horm Behav</addtitle><description>A well-defined season of sexual rest controlled by photoperiod is observed in female sheep and goats during spring and summer, delineating their “anestrous season”; bucks also decrease sexual activity at about the same time. Nutrition and/or socio-sexual stimuli play only secondary roles. However, the presence of sexually active males can reduce the length of seasonal anestrus. Whether it can also completely suppress anestrus has not been investigated. Here we tested this in goats in 3 experiments, using bucks rendered sexually active out of season by exposure to long days. The continuous presence of these males prevented goats to display seasonal anestrus: 12/14 females cycled the year round, vs. 0/13 and 0/11 for females with un-treated bucks or without bucks (experiment 1). When active bucks were removed, females immediately entered anestrus (7/7 stopped ovulating vs. 1/7 if maintained with active bucks; experiment 2). Finally, 7/7 anestrous does with bucks in sexual rest since 1.5months commenced cycling rapidly during mid-anestrous, when these bucks became sexually active following a treatment with artificial long days, vs. 0/7 with un-treated bucks or no bucks (experiment 3). The presence/withdrawal of active bucks had a highly significant effect in the three experiments (P≤0.002). Therefore, the presence of a mating opportunity can completely override the photoperiodic inhibition of reproduction of females throughout the anestrous season. Results suggest that we must re-evaluate the relative contributions of photoperiod vs. other external cues in controlling seasonal reproduction, thus offering new non-pharmaceutical ways for controlling out-of-season reproduction in small ruminants.
•Female and male goats display seasonal variations of their sexual activity.•Sexual activity of males was induced in the sexual rest by photoperiodic treatments.•Presence of photo-stimulated males prevented the anestrous season in does.•When sexually active bucks were removed, does entered in anestrus.</description><subject>Anestrus - physiology</subject><subject>Animal Husbandry</subject><subject>Animal reproduction</subject><subject>Animals</subject><subject>Anovulation</subject><subject>Caprine</subject><subject>Circannual rhythm</subject><subject>Courtship</subject><subject>Female</subject><subject>GnRH–LH</subject><subject>Goats</subject><subject>Goats - physiology</subject><subject>Life Sciences</subject><subject>Male</subject><subject>Olfaction</subject><subject>Other</subject><subject>Ovulation - physiology</subject><subject>Ovulatory activity</subject><subject>Photoperiod</subject><subject>Reproduction - physiology</subject><subject>Ruminantia</subject><subject>Seasons</subject><subject>Sexual behavior</subject><subject>Sexual Behavior, Animal - physiology</subject><subject>Social Environment</subject><issn>0018-506X</issn><issn>1095-6867</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkUGP0zAQhS0EYsvCL0BClrjAIcEzsR3nwGG1AhapggMgcbMcZ0JdpUmxk4r-e9ztsgcOcLJm9L3xm3mMPQdRggD9ZlseNy1tShQgS8BSCHjAViAaVWij64dslTumUEJ_v2BPUtrmEpSUj9kFKtnUEuoV-_SFfi1uGI7c-TkciO_cQInvIx1onPm8Id6FtB_ckU89T-TSNLqBu5HSHJfEw8h7Omn4j8nN6Sl71Lsh0bO795J9e__u6_VNsf784eP11brwUsm5wApQilpRC7oFQOU7BQgtuq5vpEaNSqBsjTbYy1Y2ptGd8Yg1Cd04o6pL9vo8d-MGu49h5-LRTi7Ym6u1PfXyqpVQQh0gs6_O7D5OP5fs2-5C8jQMeYlpSRbqCg3ousb_o1pLzBYakdGXf6HbaYn5NrcUNMY0aDJVnSkfp5Qi9fdmQdhTinZrb1O0pxQtoM0hZdWLu9lLu6PuXvMntgy8PQOUb3wIFG3ygUZPXYjkZ9tN4Z8f_AYrT6r-</recordid><startdate>20150301</startdate><enddate>20150301</enddate><creator>Delgadillo, J.A.</creator><creator>Flores, J.A.</creator><creator>Hernández, H.</creator><creator>Poindron, P.</creator><creator>Keller, M.</creator><creator>Fitz-Rodríguez, G.</creator><creator>Duarte, G.</creator><creator>Vielma, J.</creator><creator>Fernández, I.G.</creator><creator>Chemineau, P.</creator><general>Elsevier Inc</general><general>Elsevier BV</general><general>Elsevier</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7TK</scope><scope>K9.</scope><scope>7X8</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0002-1584-7285</orcidid><orcidid>https://orcid.org/0000-0002-5445-7431</orcidid></search><sort><creationdate>20150301</creationdate><title>Sexually active males prevent the display of seasonal anestrus in female goats</title><author>Delgadillo, J.A. ; Flores, J.A. ; Hernández, H. ; Poindron, P. ; Keller, M. ; Fitz-Rodríguez, G. ; Duarte, G. ; Vielma, J. ; Fernández, I.G. ; Chemineau, P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c454t-23124075eb16b1125cd5121b2adf9462625024b8682f4b49896d8c227e069a853</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Anestrus - physiology</topic><topic>Animal Husbandry</topic><topic>Animal reproduction</topic><topic>Animals</topic><topic>Anovulation</topic><topic>Caprine</topic><topic>Circannual rhythm</topic><topic>Courtship</topic><topic>Female</topic><topic>GnRH–LH</topic><topic>Goats</topic><topic>Goats - physiology</topic><topic>Life Sciences</topic><topic>Male</topic><topic>Olfaction</topic><topic>Other</topic><topic>Ovulation - physiology</topic><topic>Ovulatory activity</topic><topic>Photoperiod</topic><topic>Reproduction - physiology</topic><topic>Ruminantia</topic><topic>Seasons</topic><topic>Sexual behavior</topic><topic>Sexual Behavior, Animal - physiology</topic><topic>Social Environment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Delgadillo, J.A.</creatorcontrib><creatorcontrib>Flores, J.A.</creatorcontrib><creatorcontrib>Hernández, H.</creatorcontrib><creatorcontrib>Poindron, P.</creatorcontrib><creatorcontrib>Keller, M.</creatorcontrib><creatorcontrib>Fitz-Rodríguez, G.</creatorcontrib><creatorcontrib>Duarte, G.</creatorcontrib><creatorcontrib>Vielma, J.</creatorcontrib><creatorcontrib>Fernández, I.G.</creatorcontrib><creatorcontrib>Chemineau, P.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Animal Behavior Abstracts</collection><collection>Neurosciences Abstracts</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Hormones and behavior</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Delgadillo, J.A.</au><au>Flores, J.A.</au><au>Hernández, H.</au><au>Poindron, P.</au><au>Keller, M.</au><au>Fitz-Rodríguez, G.</au><au>Duarte, G.</au><au>Vielma, J.</au><au>Fernández, I.G.</au><au>Chemineau, P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Sexually active males prevent the display of seasonal anestrus in female goats</atitle><jtitle>Hormones and behavior</jtitle><addtitle>Horm Behav</addtitle><date>2015-03-01</date><risdate>2015</risdate><volume>69</volume><spage>8</spage><epage>15</epage><pages>8-15</pages><issn>0018-506X</issn><eissn>1095-6867</eissn><abstract>A well-defined season of sexual rest controlled by photoperiod is observed in female sheep and goats during spring and summer, delineating their “anestrous season”; bucks also decrease sexual activity at about the same time. Nutrition and/or socio-sexual stimuli play only secondary roles. However, the presence of sexually active males can reduce the length of seasonal anestrus. Whether it can also completely suppress anestrus has not been investigated. Here we tested this in goats in 3 experiments, using bucks rendered sexually active out of season by exposure to long days. The continuous presence of these males prevented goats to display seasonal anestrus: 12/14 females cycled the year round, vs. 0/13 and 0/11 for females with un-treated bucks or without bucks (experiment 1). When active bucks were removed, females immediately entered anestrus (7/7 stopped ovulating vs. 1/7 if maintained with active bucks; experiment 2). Finally, 7/7 anestrous does with bucks in sexual rest since 1.5months commenced cycling rapidly during mid-anestrous, when these bucks became sexually active following a treatment with artificial long days, vs. 0/7 with un-treated bucks or no bucks (experiment 3). The presence/withdrawal of active bucks had a highly significant effect in the three experiments (P≤0.002). Therefore, the presence of a mating opportunity can completely override the photoperiodic inhibition of reproduction of females throughout the anestrous season. Results suggest that we must re-evaluate the relative contributions of photoperiod vs. other external cues in controlling seasonal reproduction, thus offering new non-pharmaceutical ways for controlling out-of-season reproduction in small ruminants.
•Female and male goats display seasonal variations of their sexual activity.•Sexual activity of males was induced in the sexual rest by photoperiodic treatments.•Presence of photo-stimulated males prevented the anestrous season in does.•When sexually active bucks were removed, does entered in anestrus.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>25497417</pmid><doi>10.1016/j.yhbeh.2014.12.001</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-1584-7285</orcidid><orcidid>https://orcid.org/0000-0002-5445-7431</orcidid></addata></record> |
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| source | MEDLINE; Elsevier ScienceDirect Journals Complete |
| subjects | Anestrus - physiology Animal Husbandry Animal reproduction Animals Anovulation Caprine Circannual rhythm Courtship Female GnRH–LH Goats Goats - physiology Life Sciences Male Olfaction Other Ovulation - physiology Ovulatory activity Photoperiod Reproduction - physiology Ruminantia Seasons Sexual behavior Sexual Behavior, Animal - physiology Social Environment |
| title | Sexually active males prevent the display of seasonal anestrus in female goats |
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