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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Las Brujas. |
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Fecha : |
14/11/2015 |
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Actualizado : |
05/11/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
DAMIÁN, J.P.; BERACOCHEA, F.; HÖTZEL, M.J.; BANCHERO, G.; UNGERFELD, R. |
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Afiliación : |
GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Reproductive and sexual behaviour development of dam or artificially reared male lambs. |
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Fecha de publicación : |
2015 |
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Fuente / Imprenta : |
Physiology and Behavior, 2015, v.147, p. 47-53. |
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ISSN : |
0031-9384 |
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DOI : |
10.1016/j.physbeh.2015.04.004 |
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Idioma : |
Inglés |
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Notas : |
Article history:Received date: 30 December 2014/Revised date: 27 March 2015/Accepted date: 2 April 2015. |
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Contenido : |
ABSTRACT.
The objective of this study was to determine if artificially reared male lambs differ from those reared by their mothers in their reproductive development and sexual behaviour during the first breeding season and in their serum testosterone to a GnRH challenge at the end of the first breeding season. Lambs were assigned to two experimental groups: 1) artificially reared lambs, separated from their dams 24-36. h after birth (Week 0) and fed sheep milk until 10. weeks of age (group AR, n = 14); and 2) lambs reared by their dams until 10. weeks of age (group DR, n = 13). Reproductive parameters and sexual behaviour were recorded from Weeks 9 to 39. The GnRH challenge was performed on Week 40. Body weight, scrotal circumference, gonado-somatic index, testosterone concentration and sperm parameters were unaffected by group, but increased with age (P < 0.0001). Lambs reared by their mothers had greater values of gonado-somatic index on Weeks 9, 16 and 19 (P < 0.05), and tended to reach puberty earlier than AR (22.9 ± 0.7 vs. 25.1 ± 1.1. weeks, respectively, P = 0.087). Lambs reared by their mothers presented more lateral approaches and mount attempts than AR (P < 0.05), and DR lambs presented more mounts on Weeks 32 and 39 than AR (P < 0.05). Blood testosterone concentrations 3.5 and 4. h after the GnRH challenge were higher in AR than in DR lambs (P < 0.05). In conclusion mother rearing promoted sexual behaviour and reproductive performance of male lambs.
© 2015. |
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Palabras claves : |
COMPORTAMIENTO SEXUAL; CONCENTRACIÓN DE TESTOSTERONA; CORDEROS; CRIANZA ARTIFICIAL DE CORDEROS; CRIANZA NATURAL DE CORDEROS; DESEMPEÑO REPRODUCTIVO EN CORDEROS; GnRH; HABILIDAD MATERNA EN LA OVEJA; HORMONA LIBERADORA DE GONADOTROPINA; ÍNDICE GONADOSOMÁTICO; LACTANCIA MATERNA EN OVINOS; MOTILIDAD DE LOS ESPERMATOZOIDES; PUBERTAD PRECOZ EN CORDEROS; VÍNCULO MADRE-CRÍA. |
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Thesagro : |
COMPORTAMIENTO REPRODUCTIVO; CORDEROS; OVINOS; REPRODUCTIVIDAD. |
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Asunto categoría : |
L52 Fisiología Animal- Crecimiento y desarrollo
L53 Fisiología Animal - Reproducción |
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Marc : |
LEADER 02907naa a2200421 a 4500
001 1053881
005 2019-11-05
008 2015 bl uuuu u00u1 u #d
022 $a0031-9384
024 7 $a10.1016/j.physbeh.2015.04.004$2DOI
100 1 $aDAMIÁN, J.P.
245 $aReproductive and sexual behaviour development of dam or artificially reared male lambs.$h[electronic resource]
260 $c2015
500 $aArticle history:Received date: 30 December 2014/Revised date: 27 March 2015/Accepted date: 2 April 2015.
520 $aABSTRACT. The objective of this study was to determine if artificially reared male lambs differ from those reared by their mothers in their reproductive development and sexual behaviour during the first breeding season and in their serum testosterone to a GnRH challenge at the end of the first breeding season. Lambs were assigned to two experimental groups: 1) artificially reared lambs, separated from their dams 24-36. h after birth (Week 0) and fed sheep milk until 10. weeks of age (group AR, n = 14); and 2) lambs reared by their dams until 10. weeks of age (group DR, n = 13). Reproductive parameters and sexual behaviour were recorded from Weeks 9 to 39. The GnRH challenge was performed on Week 40. Body weight, scrotal circumference, gonado-somatic index, testosterone concentration and sperm parameters were unaffected by group, but increased with age (P < 0.0001). Lambs reared by their mothers had greater values of gonado-somatic index on Weeks 9, 16 and 19 (P < 0.05), and tended to reach puberty earlier than AR (22.9 ± 0.7 vs. 25.1 ± 1.1. weeks, respectively, P = 0.087). Lambs reared by their mothers presented more lateral approaches and mount attempts than AR (P < 0.05), and DR lambs presented more mounts on Weeks 32 and 39 than AR (P < 0.05). Blood testosterone concentrations 3.5 and 4. h after the GnRH challenge were higher in AR than in DR lambs (P < 0.05). In conclusion mother rearing promoted sexual behaviour and reproductive performance of male lambs. © 2015.
650 $aCOMPORTAMIENTO REPRODUCTIVO
650 $aCORDEROS
650 $aOVINOS
650 $aREPRODUCTIVIDAD
653 $aCOMPORTAMIENTO SEXUAL
653 $aCONCENTRACIÓN DE TESTOSTERONA
653 $aCORDEROS
653 $aCRIANZA ARTIFICIAL DE CORDEROS
653 $aCRIANZA NATURAL DE CORDEROS
653 $aDESEMPEÑO REPRODUCTIVO EN CORDEROS
653 $aGnRH
653 $aHABILIDAD MATERNA EN LA OVEJA
653 $aHORMONA LIBERADORA DE GONADOTROPINA
653 $aÍNDICE GONADOSOMÁTICO
653 $aLACTANCIA MATERNA EN OVINOS
653 $aMOTILIDAD DE LOS ESPERMATOZOIDES
653 $aPUBERTAD PRECOZ EN CORDEROS
653 $aVÍNCULO MADRE-CRÍA
700 1 $aBERACOCHEA, F.
700 1 $aHÖTZEL, M.J.
700 1 $aBANCHERO, G.
700 1 $aUNGERFELD, R.
773 $tPhysiology and Behavior, 2015$gv.147, p. 47-53.
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
19/07/2023 |
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Actualizado : |
19/07/2023 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
SCHILD, C.; BOABAID, F.M.; OLIVEIRA, L.G.S.; ARMENDANO, J.I.; SARAVIA, A.; CUSTODIO, A.; ALGORTA, J.; ALVAREZ, C.; JAURENA, M.; DIXON, R.M.; RIET-CORREA, F. |
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Afiliación : |
CARLOS SCHILD, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; California Animal Health Food Safety, University of California Davis, 105 W Central Ave, San Bernardino, 92408, CA, United States; F. M. BOABAID, Polo de Desarrollo Universitario, Instituto Superior de la Carne, Sede Tacuarembó, CENUR Noreste, Universidad de la República, Ruta 5, km 386, Tacuarembó, 45000, Uruguay; LUIZ GUSTAVO SCHNEIDER DE OLIVEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.; J.I. ARMENDANO, Facultad de Ciencias Veterinarias, Universidad Nacional del Centro de la Provincia de Buenos Aires, Paraje Arroyo Seco S/N, Tandil, 7000, Argentina; ANDERSON SARAVIA DE MELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; A. CUSTODIO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; J. ALGORTA, Barraca Deambrosi S.A, Av. Rondeau 2257, Montevideo, 11800, Uruguay; C. ÁLVAREZ, Laboratorio Analítico Agroindustrial, Ruta 90 km 5, Paysandú, 60000, Uruguay; MARTIN ALEJANDRO JAURENA BARRIOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; R. M. DIXON, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, 4072, QLD, Australia; FRANKLIN RIET-CORREA AMARAL, Programa de pós-graduação em Ciência Animal nos Trópicos, Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia, Salvador, 41405-000, Brazil. |
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Título : |
Response of cows with osteomalacia grazing sub-tropical native pastures to phosphorus supplementation with loose mineral mix or feed blocks. |
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Fecha de publicación : |
2023 |
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Fuente / Imprenta : |
Veterinary Journal. 2023, Volume 298-299, 106013. https://doi.org/10.1016/j.tvjl.2023.106013 |
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ISSN : |
1090-0233 |
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DOI : |
10.1016/j.tvjl.2023.106013 |
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Idioma : |
Inglés |
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Notas : |
Article history: Accepted 20 June 2023; Available online 22 June 2023. -- Correspondence author: Riet-Correa, F.; Programa de pós-graduação em Ciência Animal nos Trópicos, Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia, Salvador, Brazil; email:franklinrietcorrea@gmail.com -- FUNDING: This work was supported by Agencia Nacional de Investigación e Innovación . [grant FMV_1_2017_1_136347 ]. A postgraduate scholarship was provided to Carlos Schild by INIA and the Comisión Académica de Posgrado de la Universidad de la República. -- |
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Contenido : |
Osteomalacia outbreaks often occur in cattle grazing native pastures in regions with endemic phosphorous (P) deficiency. This study evaluated the responses of two groups of cows, initially with clinical signs of chronic P deficiency, to P supplements (100 g P/kg) offered ad libitum for 13 weeks as a loose mineral mix (LMM group) or the same mineral mix offered as blocks (BMM group). Half of the cows in each group were categorized as ?with? or ?without? severe osteopenia according to a test that depended on the resistance to penetration of a needle through the left lateral process of the L4-L5 lumbar vertebra. The groups grazed two paddocks that were switched each 3 weeks. The liveweight, supplement intakes, and the P-concentrations in soil, forage, blood, and external cortical bone (ECB) of the ribs were measured. The bicarbonate-extractable P in soil was 3.5 mg/kg. The mean of total P in forage (0.95 g/kg/DM), inorganic P in serum (iP, 0.96 mmol/L), and total P in the ECB of the ribs (85 mg/mL) at the beginning of the experiment were all low and consistent with severe chronic P deficiency. The P supplementation allowed clinical recovery in 18/20 cows with their serum and ECB P and calcium approaching normal values and in the two remaining cows the only sign was abnormal gait. Cows consumed more of the LMM than BMM supplement (means 8.3 and 6.6 g P/day, respectively). After 13 weeks cows initially classified as ?with severe osteopenia? and supplemented with LMM had higher (P < 0.05) final liveweight (difference = 21.6 kg), iP (difference = 0.74 mmol/L), bone Ca (difference = 65.7 mg/mL) and bone P (difference = 26.5 mg/mL) concentrations and lower (P < 0.01) final serum Ca/iP ratio (difference = -0.65) than cows with severe osteopenia but supplemented with BMM. The treatment of severe P deficiency cows grazing P deficient sub-tropical grasslands by P supplementation for 13 weeks was more effective with LMM than BMM. © 2023 MenosOsteomalacia outbreaks often occur in cattle grazing native pastures in regions with endemic phosphorous (P) deficiency. This study evaluated the responses of two groups of cows, initially with clinical signs of chronic P deficiency, to P supplements (100 g P/kg) offered ad libitum for 13 weeks as a loose mineral mix (LMM group) or the same mineral mix offered as blocks (BMM group). Half of the cows in each group were categorized as ?with? or ?without? severe osteopenia according to a test that depended on the resistance to penetration of a needle through the left lateral process of the L4-L5 lumbar vertebra. The groups grazed two paddocks that were switched each 3 weeks. The liveweight, supplement intakes, and the P-concentrations in soil, forage, blood, and external cortical bone (ECB) of the ribs were measured. The bicarbonate-extractable P in soil was 3.5 mg/kg. The mean of total P in forage (0.95 g/kg/DM), inorganic P in serum (iP, 0.96 mmol/L), and total P in the ECB of the ribs (85 mg/mL) at the beginning of the experiment were all low and consistent with severe chronic P deficiency. The P supplementation allowed clinical recovery in 18/20 cows with their serum and ECB P and calcium approaching normal values and in the two remaining cows the only sign was abnormal gait. Cows consumed more of the LMM than BMM supplement (means 8.3 and 6.6 g P/day, respectively). After 13 weeks cows initially classified as ?with severe osteopenia? and supplemented with LMM had higher (P... Presentar Todo |
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Palabras claves : |
Osteomalacia; Phosphorus deficiency; PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA; Uruguay. |
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Asunto categoría : |
L01 Ganadería |
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Marc : |
LEADER 03550naa a2200325 a 4500
001 1064257
005 2023-07-19
008 2023 bl uuuu u00u1 u #d
022 $a1090-0233
024 7 $a10.1016/j.tvjl.2023.106013$2DOI
100 1 $aSCHILD, C.
245 $aResponse of cows with osteomalacia grazing sub-tropical native pastures to phosphorus supplementation with loose mineral mix or feed blocks.$h[electronic resource]
260 $c2023
500 $aArticle history: Accepted 20 June 2023; Available online 22 June 2023. -- Correspondence author: Riet-Correa, F.; Programa de pós-graduação em Ciência Animal nos Trópicos, Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia, Salvador, Brazil; email:franklinrietcorrea@gmail.com -- FUNDING: This work was supported by Agencia Nacional de Investigación e Innovación . [grant FMV_1_2017_1_136347 ]. A postgraduate scholarship was provided to Carlos Schild by INIA and the Comisión Académica de Posgrado de la Universidad de la República. --
520 $aOsteomalacia outbreaks often occur in cattle grazing native pastures in regions with endemic phosphorous (P) deficiency. This study evaluated the responses of two groups of cows, initially with clinical signs of chronic P deficiency, to P supplements (100 g P/kg) offered ad libitum for 13 weeks as a loose mineral mix (LMM group) or the same mineral mix offered as blocks (BMM group). Half of the cows in each group were categorized as ?with? or ?without? severe osteopenia according to a test that depended on the resistance to penetration of a needle through the left lateral process of the L4-L5 lumbar vertebra. The groups grazed two paddocks that were switched each 3 weeks. The liveweight, supplement intakes, and the P-concentrations in soil, forage, blood, and external cortical bone (ECB) of the ribs were measured. The bicarbonate-extractable P in soil was 3.5 mg/kg. The mean of total P in forage (0.95 g/kg/DM), inorganic P in serum (iP, 0.96 mmol/L), and total P in the ECB of the ribs (85 mg/mL) at the beginning of the experiment were all low and consistent with severe chronic P deficiency. The P supplementation allowed clinical recovery in 18/20 cows with their serum and ECB P and calcium approaching normal values and in the two remaining cows the only sign was abnormal gait. Cows consumed more of the LMM than BMM supplement (means 8.3 and 6.6 g P/day, respectively). After 13 weeks cows initially classified as ?with severe osteopenia? and supplemented with LMM had higher (P < 0.05) final liveweight (difference = 21.6 kg), iP (difference = 0.74 mmol/L), bone Ca (difference = 65.7 mg/mL) and bone P (difference = 26.5 mg/mL) concentrations and lower (P < 0.01) final serum Ca/iP ratio (difference = -0.65) than cows with severe osteopenia but supplemented with BMM. The treatment of severe P deficiency cows grazing P deficient sub-tropical grasslands by P supplementation for 13 weeks was more effective with LMM than BMM. © 2023
653 $aOsteomalacia
653 $aPhosphorus deficiency
653 $aPLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA
653 $aUruguay
700 1 $aBOABAID, F.M.
700 1 $aOLIVEIRA, L.G.S.
700 1 $aARMENDANO, J.I.
700 1 $aSARAVIA, A.
700 1 $aCUSTODIO, A.
700 1 $aALGORTA, J.
700 1 $aALVAREZ, C.
700 1 $aJAURENA, M.
700 1 $aDIXON, R.M.
700 1 $aRIET-CORREA, F.
773 $tVeterinary Journal. 2023, Volume 298-299, 106013. https://doi.org/10.1016/j.tvjl.2023.106013
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