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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha : |
12/09/2014 |
Actualizado : |
11/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
QUINTANS, G.; VÁZQUEZ, A.I.; WEIGEL, K.A. |
Afiliación : |
GRACIELA QUINTANS ILARIA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
Título : |
Effect of suckling restriction with nose plates and premature weaning on postpartum anoestrous interval in primiparous cows under range conditions. |
Fecha de publicación : |
2009 |
Fuente / Imprenta : |
Animal Reproduction Science, 2009, v. 116, no. 1-2 p. 10-18. |
ISSN : |
0378-4320 |
DOI : |
10.1016/j.anireprosci.2008.12.007 |
Idioma : |
Inglés |
Notas : |
Article history: Received 4 September 2008 // Received in revised form 4 December 2008 // Accepted 9 December 2008 // Available online 14 December 2008. |
Contenido : |
Abstract
Suckling and nutrition are generally recognized as two major factors controlling the duration of the postpartum anovulatory period. In the present study, the effect of premature weaning and suckling restriction with nose plates (NPs) on cow and calf performance was evaluated. The study was conducted over 2 years; primiparous Hereford cows, weighing (mean+/-S.E.M.) 344+/-3.5kg and with 4.1+/-0.05 units of body condition score (BCS) (scale 1-8 [Vizcarra, J.A., Ibañez, W., Orcasberro, R., 1986. Repetibilidad y reproductibilidad de dos escalas para estimar la condición corporal de vacas Hereford. Investigaciones Agronómicas 7 (1), 45-47]) at calving, remained with their calves until 72.5+/-1.2 days postpartum (day 0). They were then assigned to one of three treatments: (i) calves with free access to their dams and ad libitum suckling (S, n=29); (ii) calves fitted with NPs for 14 days, but remained with their dams (NP, n=29), and (iii) calves that were weaned from their dams (W, n=28). All cows were anestrus at the time treatments commenced (day 0). All cows were blood sampled twice weekly from 1 week before the beginning of the experiment until the end of the mating period (day 74) for progesterone analysis. The mating period began on day 14. Cows in W treatment had ovulations earlier (P<0.05) than those in NP and S groups. Cows in the NP group had longer (P<0.05) intervals between the first progesterone increase and normal luteal phase than cows in the other two treatments groups (23.3+/-3.2 vs. 6.5+/-3.2 and 5.2+/-3.3 days for NP, S and W cows, respectively). Fifty per cent of the cows with NP had a short cycle (7 days) but there was a group of cows that had longer (P<0.05) intervals (66 days) between first progesterone increase and normal estrous activity. In the NP group, 8 of 29 cows had a short luteal phase and then a normal one; for 9 of these 29 cows progesterone concentrations remained low for 6 weeks from the beginning of the treatment; and for 12 of these 29 cows progesterone concentrations initially increased after treatment initiation, but these animals became anestrus thereafter. Short-term suckling restriction with NPs led to a variable response in primiparous cows of moderate body condition under range conditions. MenosAbstract
Suckling and nutrition are generally recognized as two major factors controlling the duration of the postpartum anovulatory period. In the present study, the effect of premature weaning and suckling restriction with nose plates (NPs) on cow and calf performance was evaluated. The study was conducted over 2 years; primiparous Hereford cows, weighing (mean+/-S.E.M.) 344+/-3.5kg and with 4.1+/-0.05 units of body condition score (BCS) (scale 1-8 [Vizcarra, J.A., Ibañez, W., Orcasberro, R., 1986. Repetibilidad y reproductibilidad de dos escalas para estimar la condición corporal de vacas Hereford. Investigaciones Agronómicas 7 (1), 45-47]) at calving, remained with their calves until 72.5+/-1.2 days postpartum (day 0). They were then assigned to one of three treatments: (i) calves with free access to their dams and ad libitum suckling (S, n=29); (ii) calves fitted with NPs for 14 days, but remained with their dams (NP, n=29), and (iii) calves that were weaned from their dams (W, n=28). All cows were anestrus at the time treatments commenced (day 0). All cows were blood sampled twice weekly from 1 week before the beginning of the experiment until the end of the mating period (day 74) for progesterone analysis. The mating period began on day 14. Cows in W treatment had ovulations earlier (P<0.05) than those in NP and S groups. Cows in the NP group had longer (P<0.05) intervals between the first progesterone increase and normal luteal phase than cows in the other two treatm... Presentar Todo |
Thesagro : |
DESTETE; GANADO DE CARNE; GANADO VACUNO; INTERVALO INTERPARTO; TABLILLA NASAL. |
Asunto categoría : |
L53 Fisiología Animal - Reproducción |
Marc : |
LEADER 03194naa a2200241 a 4500 001 1050215 005 2019-10-11 008 2009 bl uuuu u00u1 u #d 022 $a0378-4320 024 7 $a10.1016/j.anireprosci.2008.12.007$2DOI 100 1 $aQUINTANS, G. 245 $aEffect of suckling restriction with nose plates and premature weaning on postpartum anoestrous interval in primiparous cows under range conditions.$h[electronic resource] 260 $c2009 500 $aArticle history: Received 4 September 2008 // Received in revised form 4 December 2008 // Accepted 9 December 2008 // Available online 14 December 2008. 520 $aAbstract Suckling and nutrition are generally recognized as two major factors controlling the duration of the postpartum anovulatory period. In the present study, the effect of premature weaning and suckling restriction with nose plates (NPs) on cow and calf performance was evaluated. The study was conducted over 2 years; primiparous Hereford cows, weighing (mean+/-S.E.M.) 344+/-3.5kg and with 4.1+/-0.05 units of body condition score (BCS) (scale 1-8 [Vizcarra, J.A., Ibañez, W., Orcasberro, R., 1986. Repetibilidad y reproductibilidad de dos escalas para estimar la condición corporal de vacas Hereford. Investigaciones Agronómicas 7 (1), 45-47]) at calving, remained with their calves until 72.5+/-1.2 days postpartum (day 0). They were then assigned to one of three treatments: (i) calves with free access to their dams and ad libitum suckling (S, n=29); (ii) calves fitted with NPs for 14 days, but remained with their dams (NP, n=29), and (iii) calves that were weaned from their dams (W, n=28). All cows were anestrus at the time treatments commenced (day 0). All cows were blood sampled twice weekly from 1 week before the beginning of the experiment until the end of the mating period (day 74) for progesterone analysis. The mating period began on day 14. Cows in W treatment had ovulations earlier (P<0.05) than those in NP and S groups. Cows in the NP group had longer (P<0.05) intervals between the first progesterone increase and normal luteal phase than cows in the other two treatments groups (23.3+/-3.2 vs. 6.5+/-3.2 and 5.2+/-3.3 days for NP, S and W cows, respectively). Fifty per cent of the cows with NP had a short cycle (7 days) but there was a group of cows that had longer (P<0.05) intervals (66 days) between first progesterone increase and normal estrous activity. In the NP group, 8 of 29 cows had a short luteal phase and then a normal one; for 9 of these 29 cows progesterone concentrations remained low for 6 weeks from the beginning of the treatment; and for 12 of these 29 cows progesterone concentrations initially increased after treatment initiation, but these animals became anestrus thereafter. Short-term suckling restriction with NPs led to a variable response in primiparous cows of moderate body condition under range conditions. 650 $aDESTETE 650 $aGANADO DE CARNE 650 $aGANADO VACUNO 650 $aINTERVALO INTERPARTO 650 $aTABLILLA NASAL 700 1 $aVÁZQUEZ, A.I. 700 1 $aWEIGEL, K.A. 773 $tAnimal Reproduction Science, 2009$gv. 116, no. 1-2 p. 10-18.
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha actual : |
21/02/2014 |
Actualizado : |
11/06/2019 |
Tipo de producción científica : |
Documentos |
Autor : |
VILARÓ, P.; BENNADJI, Z.; BOUDELLI, E.; MOYNA, G.; PANIZZOLO, L.; FERREIRA, F. |
Afiliación : |
ZOHRA BENNADJI SOUALHIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Departamento de Reactores, Instituto de Ingeniería Química, UdelaR.; Departamento de Química del Litoral, CENUR Litoral Norte, UdelaR.; FERNANDO AMAURI FERREIRA CHIESA, Espacio de Ciencia y Tecnología Química, Centro Universitario de Tacuarembó, UdelaR. Laboratorio de Carbohidratos y Glicoconjugados, Departamento de Química Orgánica, Facultad de Química, UdelaR. |
Título : |
De la estructura a la funcionalidad: avances en el estudio de los galactomananos obtenidos de Prosopis affinis. |
Fecha de publicación : |
2017 |
Fuente / Imprenta : |
In: Bennadji, Z.; Ferreira, F. (Coord.). Simposiso Biomateriales Forestales, miércoles 11 de octubre, INIA Tacuarembó. Tacuarembó: INIA, 2017. |
Páginas : |
p. 17 |
Serie : |
(INIA Serie Actividades de Difusión ; 777) |
Idioma : |
Español |
Contenido : |
En este trabajo se presenta la estructura preliminar del galactomanano extraído de semillas de Prosopis affinis (Leguminosae, Mimosaceae) a temperatura ambiente
(GMPRT) y 80°C (GMP80), utilizando gomas guar y garrofín como referencia. El análisis de azúcares mostró la presencia exclusiva de galactosa y manosa, con una proporción Man:Gal de 1,5:1. El análisis de metilación de GMPRT y GMP80 mostró la presencia de una cadena lineal de residuos de manosa unidas en C4, con ramificaciones de residuos galactosil en C6 en cada segundo residuo de manosa. Estas estructuras se confirmaron por experimentos de RMN (1D-TOCSY y 2D-HSQC-TOCSY). |
Palabras claves : |
EXTRACCIÓN; GALACTOMANANOS; PROSOPIS AFFINIS. |
Thesagro : |
FORESTACIÓN. |
Asunto categoría : |
K10 Producción forestal |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/8020/1/SAD-777-17.pdf
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Marc : |
LEADER 01470naa a2200253 a 4500 001 1018371 005 2019-06-11 008 2017 bl uuuu u00u1 u #d 100 1 $aVILARÓ, P. 245 $aDe la estructura a la funcionalidad$bavances en el estudio de los galactomananos obtenidos de Prosopis affinis. 260 $c2017 300 $ap. 17 490 $a(INIA Serie Actividades de Difusión ; 777) 520 $aEn este trabajo se presenta la estructura preliminar del galactomanano extraído de semillas de Prosopis affinis (Leguminosae, Mimosaceae) a temperatura ambiente (GMPRT) y 80°C (GMP80), utilizando gomas guar y garrofín como referencia. El análisis de azúcares mostró la presencia exclusiva de galactosa y manosa, con una proporción Man:Gal de 1,5:1. El análisis de metilación de GMPRT y GMP80 mostró la presencia de una cadena lineal de residuos de manosa unidas en C4, con ramificaciones de residuos galactosil en C6 en cada segundo residuo de manosa. Estas estructuras se confirmaron por experimentos de RMN (1D-TOCSY y 2D-HSQC-TOCSY). 650 $aFORESTACIÓN 653 $aEXTRACCIÓN 653 $aGALACTOMANANOS 653 $aPROSOPIS AFFINIS 700 1 $aBENNADJI, Z. 700 1 $aBOUDELLI, E. 700 1 $aMOYNA, G. 700 1 $aPANIZZOLO, L. 700 1 $aFERREIRA, F. 773 $tIn: Bennadji, Z.; Ferreira, F. (Coord.). Simposiso Biomateriales Forestales, miércoles 11 de octubre, INIA Tacuarembó. Tacuarembó: INIA, 2017.
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