Effect of treatment with and subsequent withdrawal of exogenous porcine somatotropin on growth and reproductive characteristics of gilts
Two experiments were conducted to examine responses of gilts to treatment with and withdrawal of exogenous porcine somatotropin (PST). In Exp. 1, 36 prepubertal gilts (79.7 +/- .9 kg; 159.1 +/- .7 d) were allotted randomly to receive daily either 0 micrograms PST (C) or 70 micrograms PST/kg initial...
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| Veröffentlicht in: | Journal of animal science 1990-08, Vol.68 (8), p.2357-2361 |
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| creator | Bryan, K.A. (The Pennsylvania State University, University Park) Clark, A.M Hagen, D.R |
| description | Two experiments were conducted to examine responses of gilts to treatment with and withdrawal of exogenous porcine somatotropin (PST). In Exp. 1, 36 prepubertal gilts (79.7 +/- .9 kg; 159.1 +/- .7 d) were allotted randomly to receive daily either 0 micrograms PST (C) or 70 micrograms PST/kg initial BW for either 21 (PST-3) or 42 d (PST-6). Gilts were examined for estrus daily by a mature boar starting on d 22 and continuing for up to 50 d. Gilts that expressed estrus were mated and removed from treatment. PST-treated gilts had higher ADG (P less than .01) and lower feed/gain (P less than .02) than C gilts. Following initiation of boar exposure, C gilts (mean interval to estrus = 2.0 d) exhibited estrus earlier than PST-3 (24.8 d) and PST-6 (24.0 d) gilts (P less than .07); however, only two C gilts were observed in estrus compared with six PST-3 and six PST-6 gilts. In Exp. 2, 40 prepubertal gilts (72.6 +/- 1.0 kg; 141.1 +/- .7 d) were allotted randomly to receive daily either 0 mg PST (C) or 5 mg PST for 30 d. On d 31, half the gilts were comingled with unfamiliar penmates and examined for estrus daily by a mature boar for up to 45 d. Estrual gilts were removed from treatment. |
| doi_str_mv | 10.2527/1990.6882357x |
| format | Article |
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(The Pennsylvania State University, University Park) ; Clark, A.M ; Hagen, D.R</creator><creatorcontrib>Bryan, K.A. (The Pennsylvania State University, University Park) ; Clark, A.M ; Hagen, D.R</creatorcontrib><description>Two experiments were conducted to examine responses of gilts to treatment with and withdrawal of exogenous porcine somatotropin (PST). In Exp. 1, 36 prepubertal gilts (79.7 +/- .9 kg; 159.1 +/- .7 d) were allotted randomly to receive daily either 0 micrograms PST (C) or 70 micrograms PST/kg initial BW for either 21 (PST-3) or 42 d (PST-6). Gilts were examined for estrus daily by a mature boar starting on d 22 and continuing for up to 50 d. Gilts that expressed estrus were mated and removed from treatment. PST-treated gilts had higher ADG (P less than .01) and lower feed/gain (P less than .02) than C gilts. Following initiation of boar exposure, C gilts (mean interval to estrus = 2.0 d) exhibited estrus earlier than PST-3 (24.8 d) and PST-6 (24.0 d) gilts (P less than .07); however, only two C gilts were observed in estrus compared with six PST-3 and six PST-6 gilts. In Exp. 2, 40 prepubertal gilts (72.6 +/- 1.0 kg; 141.1 +/- .7 d) were allotted randomly to receive daily either 0 mg PST (C) or 5 mg PST for 30 d. On d 31, half the gilts were comingled with unfamiliar penmates and examined for estrus daily by a mature boar for up to 45 d. Estrual gilts were removed from treatment.</description><identifier>ISSN: 0021-8812</identifier><identifier>EISSN: 1525-3163</identifier><identifier>EISSN: 0021-8812</identifier><identifier>DOI: 10.2527/1990.6882357x</identifier><identifier>PMID: 2401658</identifier><language>eng</language><publisher>Savoy, IL: Am Soc Animal Sci</publisher><subject>Animals ; Biological and medical sciences ; CERDAS ; CICLO ESTRAL ; CRECIMIENTO ; CROISSANCE ; CYCLE OESTRAL ; Estrus - drug effects ; Female ; Fundamental and applied biological sciences. Psychology ; GROWTH ; Growth Hormone - pharmacology ; HORMONAS PITUITARIAS ; HORMONE HYPOPHYSAIRE ; Hormones and neuropeptides. Regulation ; Hypothalamus. Hypophysis. Epiphysis. Urophysis ; MADUREZ SEXUAL ; MATURITE SEXUELLE ; OESTROUS CYCLE ; OVULACION ; OVULATION ; Ovulation - drug effects ; PITUITARY HORMONES ; Random Allocation ; Sexual Maturation - drug effects ; SEXUAL MATURITY ; SOWS ; Swine - growth & development ; Swine - physiology ; TRUIE ; Vertebrates: endocrinology ; Weight Gain - drug effects</subject><ispartof>Journal of animal science, 1990-08, Vol.68 (8), p.2357-2361</ispartof><rights>1991 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c438t-290dbf9ba7746b43533ad86d48c2cf3d33a5dfdf1d547bec6c8fb8c36f31b7df3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=19504918$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/2401658$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Bryan, K.A. (The Pennsylvania State University, University Park)</creatorcontrib><creatorcontrib>Clark, A.M</creatorcontrib><creatorcontrib>Hagen, D.R</creatorcontrib><title>Effect of treatment with and subsequent withdrawal of exogenous porcine somatotropin on growth and reproductive characteristics of gilts</title><title>Journal of animal science</title><addtitle>J Anim Sci</addtitle><description>Two experiments were conducted to examine responses of gilts to treatment with and withdrawal of exogenous porcine somatotropin (PST). In Exp. 1, 36 prepubertal gilts (79.7 +/- .9 kg; 159.1 +/- .7 d) were allotted randomly to receive daily either 0 micrograms PST (C) or 70 micrograms PST/kg initial BW for either 21 (PST-3) or 42 d (PST-6). Gilts were examined for estrus daily by a mature boar starting on d 22 and continuing for up to 50 d. Gilts that expressed estrus were mated and removed from treatment. PST-treated gilts had higher ADG (P less than .01) and lower feed/gain (P less than .02) than C gilts. Following initiation of boar exposure, C gilts (mean interval to estrus = 2.0 d) exhibited estrus earlier than PST-3 (24.8 d) and PST-6 (24.0 d) gilts (P less than .07); however, only two C gilts were observed in estrus compared with six PST-3 and six PST-6 gilts. In Exp. 2, 40 prepubertal gilts (72.6 +/- 1.0 kg; 141.1 +/- .7 d) were allotted randomly to receive daily either 0 mg PST (C) or 5 mg PST for 30 d. On d 31, half the gilts were comingled with unfamiliar penmates and examined for estrus daily by a mature boar for up to 45 d. Estrual gilts were removed from treatment.</description><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>CERDAS</subject><subject>CICLO ESTRAL</subject><subject>CRECIMIENTO</subject><subject>CROISSANCE</subject><subject>CYCLE OESTRAL</subject><subject>Estrus - drug effects</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>GROWTH</subject><subject>Growth Hormone - pharmacology</subject><subject>HORMONAS PITUITARIAS</subject><subject>HORMONE HYPOPHYSAIRE</subject><subject>Hormones and neuropeptides. Regulation</subject><subject>Hypothalamus. Hypophysis. Epiphysis. Urophysis</subject><subject>MADUREZ SEXUAL</subject><subject>MATURITE SEXUELLE</subject><subject>OESTROUS CYCLE</subject><subject>OVULACION</subject><subject>OVULATION</subject><subject>Ovulation - drug effects</subject><subject>PITUITARY HORMONES</subject><subject>Random Allocation</subject><subject>Sexual Maturation - drug effects</subject><subject>SEXUAL MATURITY</subject><subject>SOWS</subject><subject>Swine - growth & development</subject><subject>Swine - physiology</subject><subject>TRUIE</subject><subject>Vertebrates: endocrinology</subject><subject>Weight Gain - drug effects</subject><issn>0021-8812</issn><issn>1525-3163</issn><issn>0021-8812</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1990</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkUtv1DAURi0EKkNhyQYJyRu6S_EzsZeoKgWpEgvo2nL8yLhK4sF2mPIP-Nk4mpQuWVn2PTq-934AvMXoknDSfcRSostWCEJ59_AM7DAnvKG4pc_BDiGCGyEweQle5XyPECZc8jNwRhjCLRc78Ofae2cKjB6W5HSZ3FzgMZQ91LOFeemz-7k8vtmkj3pcWfcQBzfHJcNDTCbMDuY46RJLiocwwzjDIcXjZknukKJdTAm_HDR7nbQpLoVcgsmrbAhjya_BC6_H7N5s5zm4-3z94-pLc_vt5uvVp9vGMCpKQySyvZe97jrW9oxySrUVrWXCEOOprVduvfXYctb1zrRG-F4Y2nqK-856eg4uTt7aU50sFzWFbNw46tnVeZRACHHM8X9BzCXhHLMKNifQpJhzcl4dUph0-q0wUmtEao1IPUZU-febeOknZ__RWya1_mGr62z06JOeTchPUskRk1g8NbgPw_4YklN50uNYrVjd69wKJdT6YwXfnUCvo9JD3by6-y4R66Rk9C-dy7KQ</recordid><startdate>19900801</startdate><enddate>19900801</enddate><creator>Bryan, K.A. (The Pennsylvania State University, University Park)</creator><creator>Clark, A.M</creator><creator>Hagen, D.R</creator><general>Am Soc Animal Sci</general><general>American Society of Animal Science</general><scope>FBQ</scope><scope>IQODW</scope><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>7TK</scope><scope>7X8</scope></search><sort><creationdate>19900801</creationdate><title>Effect of treatment with and subsequent withdrawal of exogenous porcine somatotropin on growth and reproductive characteristics of gilts</title><author>Bryan, K.A. (The Pennsylvania State University, University Park) ; Clark, A.M ; Hagen, D.R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c438t-290dbf9ba7746b43533ad86d48c2cf3d33a5dfdf1d547bec6c8fb8c36f31b7df3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1990</creationdate><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>CERDAS</topic><topic>CICLO ESTRAL</topic><topic>CRECIMIENTO</topic><topic>CROISSANCE</topic><topic>CYCLE OESTRAL</topic><topic>Estrus - drug effects</topic><topic>Female</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>GROWTH</topic><topic>Growth Hormone - pharmacology</topic><topic>HORMONAS PITUITARIAS</topic><topic>HORMONE HYPOPHYSAIRE</topic><topic>Hormones and neuropeptides. Regulation</topic><topic>Hypothalamus. Hypophysis. Epiphysis. Urophysis</topic><topic>MADUREZ SEXUAL</topic><topic>MATURITE SEXUELLE</topic><topic>OESTROUS CYCLE</topic><topic>OVULACION</topic><topic>OVULATION</topic><topic>Ovulation - drug effects</topic><topic>PITUITARY HORMONES</topic><topic>Random Allocation</topic><topic>Sexual Maturation - drug effects</topic><topic>SEXUAL MATURITY</topic><topic>SOWS</topic><topic>Swine - growth & development</topic><topic>Swine - physiology</topic><topic>TRUIE</topic><topic>Vertebrates: endocrinology</topic><topic>Weight Gain - drug effects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bryan, K.A. (The Pennsylvania State University, University Park)</creatorcontrib><creatorcontrib>Clark, A.M</creatorcontrib><creatorcontrib>Hagen, D.R</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Neurosciences Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of animal science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bryan, K.A. (The Pennsylvania State University, University Park)</au><au>Clark, A.M</au><au>Hagen, D.R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of treatment with and subsequent withdrawal of exogenous porcine somatotropin on growth and reproductive characteristics of gilts</atitle><jtitle>Journal of animal science</jtitle><addtitle>J Anim Sci</addtitle><date>1990-08-01</date><risdate>1990</risdate><volume>68</volume><issue>8</issue><spage>2357</spage><epage>2361</epage><pages>2357-2361</pages><issn>0021-8812</issn><eissn>1525-3163</eissn><eissn>0021-8812</eissn><abstract>Two experiments were conducted to examine responses of gilts to treatment with and withdrawal of exogenous porcine somatotropin (PST). In Exp. 1, 36 prepubertal gilts (79.7 +/- .9 kg; 159.1 +/- .7 d) were allotted randomly to receive daily either 0 micrograms PST (C) or 70 micrograms PST/kg initial BW for either 21 (PST-3) or 42 d (PST-6). Gilts were examined for estrus daily by a mature boar starting on d 22 and continuing for up to 50 d. Gilts that expressed estrus were mated and removed from treatment. PST-treated gilts had higher ADG (P less than .01) and lower feed/gain (P less than .02) than C gilts. Following initiation of boar exposure, C gilts (mean interval to estrus = 2.0 d) exhibited estrus earlier than PST-3 (24.8 d) and PST-6 (24.0 d) gilts (P less than .07); however, only two C gilts were observed in estrus compared with six PST-3 and six PST-6 gilts. In Exp. 2, 40 prepubertal gilts (72.6 +/- 1.0 kg; 141.1 +/- .7 d) were allotted randomly to receive daily either 0 mg PST (C) or 5 mg PST for 30 d. On d 31, half the gilts were comingled with unfamiliar penmates and examined for estrus daily by a mature boar for up to 45 d. Estrual gilts were removed from treatment.</abstract><cop>Savoy, IL</cop><pub>Am Soc Animal Sci</pub><pmid>2401658</pmid><doi>10.2527/1990.6882357x</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of animal science, 1990-08, Vol.68 (8), p.2357-2361 |
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| subjects | Animals Biological and medical sciences CERDAS CICLO ESTRAL CRECIMIENTO CROISSANCE CYCLE OESTRAL Estrus - drug effects Female Fundamental and applied biological sciences. Psychology GROWTH Growth Hormone - pharmacology HORMONAS PITUITARIAS HORMONE HYPOPHYSAIRE Hormones and neuropeptides. Regulation Hypothalamus. Hypophysis. Epiphysis. Urophysis MADUREZ SEXUAL MATURITE SEXUELLE OESTROUS CYCLE OVULACION OVULATION Ovulation - drug effects PITUITARY HORMONES Random Allocation Sexual Maturation - drug effects SEXUAL MATURITY SOWS Swine - growth & development Swine - physiology TRUIE Vertebrates: endocrinology Weight Gain - drug effects |
| title | Effect of treatment with and subsequent withdrawal of exogenous porcine somatotropin on growth and reproductive characteristics of gilts |
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