| |
|
|
 | Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
|
Registro completo
|
|
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.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Treinta y Tres (TT) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
|
| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
|
Registro completo
|
|
Biblioteca (s) : |
INIA Las Brujas. |
|
Fecha actual : |
11/08/2016 |
|
Actualizado : |
24/06/2021 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Circulación / Nivel : |
Internacional - -- |
|
Autor : |
LINZ, G.M.; BUCHER, E.H.; CANAVELLI, S.B.; RODRIGUEZ, E.; AVERY, M.L. |
|
Afiliación : |
G.M. LINZ, USDA, Wildlife Services, National Wildlife Research Center; E.H. BUCHER, Centro de Zoologia Aplicada, Instituto de Diversidad y Ecología Animal (CONICET-UNC); Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina; S.B. CANAVELLI, INTA (Instituto Nacional de Tecnología Agropecuaria)- Paraná; ETHEL RODRIGUEZ, MGAP (Ministerio Ganadería Agricultura y Pesca); L.M. AVERY, USDA, Wildlife Services, National Wildlife Research Center. |
|
Título : |
Limitations of population suppression for protecting crops from bird depredation: A review |
|
Fecha de publicación : |
2015 |
|
Fuente / Imprenta : |
Crop Protection, 2015, v. 76, no. 1, p. 46-52. |
|
DOI : |
10.1016/j.cropro.2015.06.005 |
|
Idioma : |
Inglés |
|
Contenido : |
ABSTRACT.
Blackbirds (Icterinae) in North America, and dickcissels (Spiza americana Gmelin), eared doves (Zenaida auriculata Des Murs), and monk parakeets (Myiopsitta monachus Boddaert) in South America can cause serious economic damage to grain crops. Farmers frequently advocate lethal bird damage abatement measures based on the perceived need to take immediate action to avoid serious economic losses. In comparison, wildlife managers must make informed decisions based on a multitude of factors, including local, state, and national environmental laws, administrative restrictions, logistics, costs, expected outcome, and cultural considerations related to wildlife stewardship. In this paper, we focus on practicality,
environmental safety, cost-effectiveness and wildlife stewardship to evaluate efforts to manage avian crop damage using lethal control. In each case where a lethal program was initiated, at least one of these four tenets was violated and there was temporary relief at best.
© 2015 Published by Elsevier Ltd. |
|
Palabras claves : |
AVIAN PESTS; BLACKBIRDS; CROP DAMAGE; DICKCISSEL; EARED DOVE; GRANVOROUS BIRDS. |
|
Thesagro : |
AVES; CONTROL DE PÁJAROS; PAJAROS DEPREDADORES. |
|
Asunto categoría : |
-- |
|
Marc : |
LEADER 01848naa a2200289 a 4500
001 1055234
005 2021-06-24
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1016/j.cropro.2015.06.005$2DOI
100 1 $aLINZ, G.M.
245 $aLimitations of population suppression for protecting crops from bird depredation$bA review$h[electronic resource]
260 $c2015
520 $aABSTRACT. Blackbirds (Icterinae) in North America, and dickcissels (Spiza americana Gmelin), eared doves (Zenaida auriculata Des Murs), and monk parakeets (Myiopsitta monachus Boddaert) in South America can cause serious economic damage to grain crops. Farmers frequently advocate lethal bird damage abatement measures based on the perceived need to take immediate action to avoid serious economic losses. In comparison, wildlife managers must make informed decisions based on a multitude of factors, including local, state, and national environmental laws, administrative restrictions, logistics, costs, expected outcome, and cultural considerations related to wildlife stewardship. In this paper, we focus on practicality, environmental safety, cost-effectiveness and wildlife stewardship to evaluate efforts to manage avian crop damage using lethal control. In each case where a lethal program was initiated, at least one of these four tenets was violated and there was temporary relief at best. © 2015 Published by Elsevier Ltd.
650 $aAVES
650 $aCONTROL DE PÁJAROS
650 $aPAJAROS DEPREDADORES
653 $aAVIAN PESTS
653 $aBLACKBIRDS
653 $aCROP DAMAGE
653 $aDICKCISSEL
653 $aEARED DOVE
653 $aGRANVOROUS BIRDS
700 1 $aBUCHER, E.H.
700 1 $aCANAVELLI, S.B.
700 1 $aRODRIGUEZ, E.
700 1 $aAVERY, M.L.
773 $tCrop Protection, 2015$gv. 76, no. 1, p. 46-52.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Las Brujas (LB) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
| Expresión de búsqueda válido. Check! |
|
|
