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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
21/02/2014 |
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Actualizado : |
05/02/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
CAVESTANY, D.; MEIKLE, A.; KINDAHL, H.; VAN LIER, E.; MOREIRA, F.; THATCHER, W.W.; FORSBERG, M. |
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Afiliación : |
DANIEL CAVESTANY BOCKING, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; A. MEIKLE, Facultad de Veterinaria, Montevideo, Uruguay; H. KINDAHL, Dept. of Obstetrics and Gynaecology, Faculty of Veterinary Medicine, SLU, Uppsala, Sweden; E. VAN LIER, Facultad de Agronomía, Montevideo, Uruguay; F. MOREIRA, DPS, University of Florida, Gainesville, FL, United States; W. W. THATCHER, DPS, University of Florida, Gainesville, FL, United States; M. FORSBERG, Department of Clinical Chemistry, Faculty of Veterinary Medicine, SLU, Uppsala, Sweden. |
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Título : |
Use of medroxyprogesterone acetate (MAP) in lactating Holstein cows within an Ovsynch protocol: follicular growth and hormonal patterns. |
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Fecha de publicación : |
2003 |
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Fuente / Imprenta : |
Theriogenology, 15 April 2003, Volume 59, Issue 8, Pages 1787-1798. Doi: https://doi.org/10.1016/S0093-691X(02)01230-X |
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ISSN : |
0093-691X |
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DOI : |
10.1016/S0093-691X(02)01230-X |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 21 February 2002 / Accepted 27 August 2002 / Available online 19 November 2002.
Funding information: The present study was partially financed by a grant (URU/5/023) from the International Atomic Energy Agency (IAEA). The authors are grateful to Dr. J.F. Roser for the donation of the bovine monoclonal antibody and to the NIDDK?s National Hormone Peptide Program and Dr. A.F. Parlow for the donation of the ovine LH used as standard in the LH assay, to Dra. Stella Lanzzeri for the conditioning of the milk samples for P4 RIA and to Mr. Ignacio Torres for helping in the handling of animals during the fieldwork.
Corresponding author: Daniel Cavestany - email:cavestan@inia.org.uy |
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Contenido : |
ABSTRACT.
To evaluate the effects of incorporating medroxyprogesterone acetate (MAP) in an Ovsynch protocol, cyclic lactating dairy cows were assigned randomly to two groups (control and MAP, n = 8 each). Ovsynch treatment (Day 0: GnRH, Day 7: PG, Day 9: GnRH) was initiated at random stages of the estrous cycle (control) and an intravaginal polyurethane sponge impregnated with 300 mg of MAP was inserted intravaginally in the MAP group at Day 0 and removed at Day 7 of the Ovsynch protocol (MAP treatment). Ovaries were scanned daily from Day 0 until the second GnRH treatment on Day 9 and from then every 6 h for 36 h. Milk samples were collected three times weekly starting 17 days before the initiation of treatment to determine the stage of the cycle at the beginning of the Ovsynch protocol. Blood samples were collected to monitor estradiol (E2), progesterone (P4), LH, and 15-ketodihydro-PGF2α (PGFM) by RIA. Response to the first GnRH treatment varied with the stage of the cycle at the time of initiation of treatment, as cows in metestrous and late diestrous did not ovulate. In cows ovulating, growth rate of the new follicle was not affected by the addition of MAP. No treatment differences were found in E2 concentrations which reached a maximum at Day 9, consistent with the maximum follicular size. At Day 7, cows with luteal concentrations of P4 had increased concentrations of PGFM, but cows with basal P4 did not show an active release of prostaglandins. There were no treatment differences in the ovulatory response to the second GnRH-induced ovulation, with 11 of the 16 cows ovulating between 16 and 32 h. The addition of MAP to the Ovsynch protocol could not mimic the normal high progesterone levels needed to prevent premature ovulations in those cows with premature CL regression.
© 2002 Elsevier Science Inc. All rights reserved. MenosABSTRACT.
To evaluate the effects of incorporating medroxyprogesterone acetate (MAP) in an Ovsynch protocol, cyclic lactating dairy cows were assigned randomly to two groups (control and MAP, n = 8 each). Ovsynch treatment (Day 0: GnRH, Day 7: PG, Day 9: GnRH) was initiated at random stages of the estrous cycle (control) and an intravaginal polyurethane sponge impregnated with 300 mg of MAP was inserted intravaginally in the MAP group at Day 0 and removed at Day 7 of the Ovsynch protocol (MAP treatment). Ovaries were scanned daily from Day 0 until the second GnRH treatment on Day 9 and from then every 6 h for 36 h. Milk samples were collected three times weekly starting 17 days before the initiation of treatment to determine the stage of the cycle at the beginning of the Ovsynch protocol. Blood samples were collected to monitor estradiol (E2), progesterone (P4), LH, and 15-ketodihydro-PGF2α (PGFM) by RIA. Response to the first GnRH treatment varied with the stage of the cycle at the time of initiation of treatment, as cows in metestrous and late diestrous did not ovulate. In cows ovulating, growth rate of the new follicle was not affected by the addition of MAP. No treatment differences were found in E2 concentrations which reached a maximum at Day 9, consistent with the maximum follicular size. At Day 7, cows with luteal concentrations of P4 had increased concentrations of PGFM, but cows with basal P4 did not show an active release of prostaglandins. There were no trea... Presentar Todo |
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Palabras claves : |
Estrous synchronization; GnRH; Medroxyprogesterone acetate; Prostaglandin; Reproduction. |
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Asunto categoría : |
L01 Ganadería |
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Marc : |
LEADER 03502naa a2200289 a 4500
001 1012826
005 2020-02-05
008 2003 bl uuuu u00u1 u #d
022 $a0093-691X
024 7 $a10.1016/S0093-691X(02)01230-X$2DOI
100 1 $aCAVESTANY, D.
245 $aUse of medroxyprogesterone acetate (MAP) in lactating Holstein cows within an Ovsynch protocol$bfollicular growth and hormonal patterns.$h[electronic resource]
260 $c2003
500 $aArticle history: Received 21 February 2002 / Accepted 27 August 2002 / Available online 19 November 2002. Funding information: The present study was partially financed by a grant (URU/5/023) from the International Atomic Energy Agency (IAEA). The authors are grateful to Dr. J.F. Roser for the donation of the bovine monoclonal antibody and to the NIDDK?s National Hormone Peptide Program and Dr. A.F. Parlow for the donation of the ovine LH used as standard in the LH assay, to Dra. Stella Lanzzeri for the conditioning of the milk samples for P4 RIA and to Mr. Ignacio Torres for helping in the handling of animals during the fieldwork. Corresponding author: Daniel Cavestany - email:cavestan@inia.org.uy
520 $aABSTRACT. To evaluate the effects of incorporating medroxyprogesterone acetate (MAP) in an Ovsynch protocol, cyclic lactating dairy cows were assigned randomly to two groups (control and MAP, n = 8 each). Ovsynch treatment (Day 0: GnRH, Day 7: PG, Day 9: GnRH) was initiated at random stages of the estrous cycle (control) and an intravaginal polyurethane sponge impregnated with 300 mg of MAP was inserted intravaginally in the MAP group at Day 0 and removed at Day 7 of the Ovsynch protocol (MAP treatment). Ovaries were scanned daily from Day 0 until the second GnRH treatment on Day 9 and from then every 6 h for 36 h. Milk samples were collected three times weekly starting 17 days before the initiation of treatment to determine the stage of the cycle at the beginning of the Ovsynch protocol. Blood samples were collected to monitor estradiol (E2), progesterone (P4), LH, and 15-ketodihydro-PGF2α (PGFM) by RIA. Response to the first GnRH treatment varied with the stage of the cycle at the time of initiation of treatment, as cows in metestrous and late diestrous did not ovulate. In cows ovulating, growth rate of the new follicle was not affected by the addition of MAP. No treatment differences were found in E2 concentrations which reached a maximum at Day 9, consistent with the maximum follicular size. At Day 7, cows with luteal concentrations of P4 had increased concentrations of PGFM, but cows with basal P4 did not show an active release of prostaglandins. There were no treatment differences in the ovulatory response to the second GnRH-induced ovulation, with 11 of the 16 cows ovulating between 16 and 32 h. The addition of MAP to the Ovsynch protocol could not mimic the normal high progesterone levels needed to prevent premature ovulations in those cows with premature CL regression. © 2002 Elsevier Science Inc. All rights reserved.
653 $aEstrous synchronization
653 $aGnRH
653 $aMedroxyprogesterone acetate
653 $aProstaglandin
653 $aReproduction
700 1 $aMEIKLE, A.
700 1 $aKINDAHL, H.
700 1 $aVAN LIER, E.
700 1 $aMOREIRA, F.
700 1 $aTHATCHER, W.W.
700 1 $aFORSBERG, M.
773 $tTheriogenology, 15 April 2003, Volume 59, Issue 8, Pages 1787-1798. Doi: https://doi.org/10.1016/S0093-691X(02)01230-X
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas; INIA Tacuarembó. |
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Fecha actual : |
24/03/2021 |
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Actualizado : |
25/03/2021 |
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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 : |
DEL CAMPO, M.; MANTECA, X.; SOARES DE LIMA, J.M.; BRITO, G.; HERNÁNDEZ, P.; SAÑUDO, C.; MONTOSSI, F. |
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Afiliación : |
MARCIA DEL CAMPO GIGENA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; XAVIER MANTECA, Universidad Autónoma de Barcelona, Bellaterra, Spain; JUAN MANUEL SOARES DE LIMA LAPETINA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUSTAVO WALTER BRITO DIAZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PILAR HERNÁNDEZ, Universitat Politècnica de València, Valencia, Spain; CARLOS SAÑUDO, Universidad de Zaragoza, Zaragoza, Spain; FABIO MARCELO MONTOSSI PORCHILE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Effect of different finishing strategies and steer temperament on animal welfare and instrumental meat tenderness. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Animals, 2021 Volume 11, Issue 3, Article number 859, pages 1-21. OPEN ACCESS. DOI: https://doi.org/10.3390/ani11030859 |
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ISSN : |
2076-2615 |
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DOI : |
10.3390/ani11030859 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 19 February 2021; Revised: 5 March 2021; Accepted: 6 March 2021; Published: 18 March 2021.
Academic Editors: Maria Camila Ceballos and Aline Sant'Anna.
This article belongs to the Special Issue Human-Animal Interactions and Their Relationships with Animal Welfare, Emotions, and Personality: https://www.mdpi.com/journal/animals/special_issues/Human-Animal_Interactions_Connection_Animal_Welfare_Emotions_Personality |
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Contenido : |
ABSTRACT.
The aim of this experiment was to evaluate the effect of different fattening systems from pasture to concentrate and temperament on animal welfare (AW) and meat quality (MQ). Eighty-four Hereford steers were randomly assigned to the following groups: T1, pasture (4% of animal live weight: LW); T2, pasture (3% LW) plus concentrate (0.6% LW); T3, pasture (3% LW) plus concentrate (1.2% LW); T4, an ad libitum concentrate treatment. Temperament was assessed by three individual tests: crush score, flight time, and exit speed, building a multicriterial temperament index (TIndex). The flight zone was also registered for each treatment. AW was assessed through the integration of indicators of productivity, physiology, and behavior, as well as by monitoring the health status within each treatment. Shear force was registered for MQ. Differences in average daily gain were due to the different energetic composition of the diets (T4 > T3 > T2 > T1) and were not attributable to animal welfare problems. Animals from T4 had the higher average daily gain (ADG) but welfare was negatively affected, being evident through physiological indicators, the restriction or deprivation of relevant behaviors, diet-related diseases, and mortality. T1, T2, and T3 did not appear to compromise animal welfare. However, strict preventive measures and monitoring should be taken during the habituation process and when using any new diet that includes concentrate, because of possible dietary diseases. Shear force values were lower in T1. None of the animals in our experiment were excitable or aggressive, but there was a positive response to handling in all treatments. In addition, regardless of diet, calmer animals had higher average daily gain and lower shear force values; thus, temperament appears to have a significant influence on productivity and meat quality.
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. MenosABSTRACT.
The aim of this experiment was to evaluate the effect of different fattening systems from pasture to concentrate and temperament on animal welfare (AW) and meat quality (MQ). Eighty-four Hereford steers were randomly assigned to the following groups: T1, pasture (4% of animal live weight: LW); T2, pasture (3% LW) plus concentrate (0.6% LW); T3, pasture (3% LW) plus concentrate (1.2% LW); T4, an ad libitum concentrate treatment. Temperament was assessed by three individual tests: crush score, flight time, and exit speed, building a multicriterial temperament index (TIndex). The flight zone was also registered for each treatment. AW was assessed through the integration of indicators of productivity, physiology, and behavior, as well as by monitoring the health status within each treatment. Shear force was registered for MQ. Differences in average daily gain were due to the different energetic composition of the diets (T4 > T3 > T2 > T1) and were not attributable to animal welfare problems. Animals from T4 had the higher average daily gain (ADG) but welfare was negatively affected, being evident through physiological indicators, the restriction or deprivation of relevant behaviors, diet-related diseases, and mortality. T1, T2, and T3 did not appear to compromise animal welfare. However, strict preventive measures and monitoring should be taken during the habituation process and when using any new diet that includes concentrate, because of possible dietary diseases. Sh... Presentar Todo |
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Palabras claves : |
Acute phase proteins; Fecal glucocorticoids; Meat tenderness; STEERS; TEMPERAMENT. |
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Thesagro : |
ANIMAL WELFARE; BIENESTAR ANIMAL. |
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Asunto categoría : |
L01 Ganadería |
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URL : |
https://www.mdpi.com/2076-2615/11/3/859/htm
https://www.mdpi.com/2076-2615/11/3/859/pdf
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Marc : |
LEADER 03334naa a2200313 a 4500
001 1061852
005 2021-03-25
008 2021 bl uuuu u00u1 u #d
022 $a2076-2615
024 7 $a10.3390/ani11030859$2DOI
100 1 $aDEL CAMPO, M.
245 $aEffect of different finishing strategies and steer temperament on animal welfare and instrumental meat tenderness.$h[electronic resource]
260 $c2021
500 $aArticle history: Received: 19 February 2021; Revised: 5 March 2021; Accepted: 6 March 2021; Published: 18 March 2021. Academic Editors: Maria Camila Ceballos and Aline Sant'Anna. This article belongs to the Special Issue Human-Animal Interactions and Their Relationships with Animal Welfare, Emotions, and Personality: https://www.mdpi.com/journal/animals/special_issues/Human-Animal_Interactions_Connection_Animal_Welfare_Emotions_Personality
520 $aABSTRACT. The aim of this experiment was to evaluate the effect of different fattening systems from pasture to concentrate and temperament on animal welfare (AW) and meat quality (MQ). Eighty-four Hereford steers were randomly assigned to the following groups: T1, pasture (4% of animal live weight: LW); T2, pasture (3% LW) plus concentrate (0.6% LW); T3, pasture (3% LW) plus concentrate (1.2% LW); T4, an ad libitum concentrate treatment. Temperament was assessed by three individual tests: crush score, flight time, and exit speed, building a multicriterial temperament index (TIndex). The flight zone was also registered for each treatment. AW was assessed through the integration of indicators of productivity, physiology, and behavior, as well as by monitoring the health status within each treatment. Shear force was registered for MQ. Differences in average daily gain were due to the different energetic composition of the diets (T4 > T3 > T2 > T1) and were not attributable to animal welfare problems. Animals from T4 had the higher average daily gain (ADG) but welfare was negatively affected, being evident through physiological indicators, the restriction or deprivation of relevant behaviors, diet-related diseases, and mortality. T1, T2, and T3 did not appear to compromise animal welfare. However, strict preventive measures and monitoring should be taken during the habituation process and when using any new diet that includes concentrate, because of possible dietary diseases. Shear force values were lower in T1. None of the animals in our experiment were excitable or aggressive, but there was a positive response to handling in all treatments. In addition, regardless of diet, calmer animals had higher average daily gain and lower shear force values; thus, temperament appears to have a significant influence on productivity and meat quality. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
650 $aANIMAL WELFARE
650 $aBIENESTAR ANIMAL
653 $aAcute phase proteins
653 $aFecal glucocorticoids
653 $aMeat tenderness
653 $aSTEERS
653 $aTEMPERAMENT
700 1 $aMANTECA, X.
700 1 $aSOARES DE LIMA, J.M.
700 1 $aBRITO, G.
700 1 $aHERNÁNDEZ, P.
700 1 $aSAÑUDO, C.
700 1 $aMONTOSSI, F.
773 $tAnimals, 2021 Volume 11, Issue 3, Article number 859, pages 1-21. OPEN ACCESS. DOI: https://doi.org/10.3390/ani11030859
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