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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
12/09/2014 |
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Actualizado : |
29/01/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
UNGERFELD, R.; QUINTANS, G.; ENRÍQUEZ, D.H.; HÖTZEL, M.J. |
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Afiliación : |
GRACIELA QUINTANS ILARIA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Behavioural changes at weaning in 6-month-old beef calves reared by cows of high or low milk yield. |
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Fecha de publicación : |
2009 |
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Fuente / Imprenta : |
Animal Production Science, 2009, v. 49, no. 8, p. 637-642. |
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DOI : |
10.1071/AN09037 |
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Idioma : |
Inglés |
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Notas : |
Article history: Manuscript received 5 March 2009, accepted 9 May 2009. |
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Contenido : |
Abstract:
The objective of this experiment was to determine the differences in behavioural changes observed in 6-month-old beef calves at weaning in relation to milk yield availability from their dams. Eighteen Hereford or Hereford· Angus crossbred primiparous cows from a single herd remained with their calves suckling until the beginning of the experiment (194.1 1.9 days after calving). On day 0, calves were moved to a 100-m2 corral far from their mothers, which were taken to a field more than 1000 m away, and returned to the original paddock on day 1. Milk production was determined monthly during the lactation period in 14 of the 18 cows. Calves? behaviour was recorded using instantaneous sampling of individual animals in each group every 10 min from 0800 to 0950, 1200 to 1350, and 1600 to 1750 hours. Recordings were performed from day ?3 to day 5, except on day 0. The calves from the five cows with higher milk yield (HMY) and the calves from the five cows with lower milk yield (LMY) were considered for data analysis. Milk yield was greater in HMY than LMY cows throughout all the lactation. HMY calves tended to suckle more frequently than LMY calves. There were no differences in average daily gain after weaning between HMY and LMY calves. However, HMY calves were heavier at weaning than LMY calves. The frequency of grazing, ruminating, walking and standing differed between HMY and LMY calves, and was affected by weaning. For example, calves from HMY cows spent less time grazing before and after weaning than calves from LMY cows. There were also interactions between group and time on the frequency of these behaviours. Overall, we conclude that the behaviour of 6-month-old beef calves at weaning differed according to their mothers? milk yield, and their developmental growth stage. MenosAbstract:
The objective of this experiment was to determine the differences in behavioural changes observed in 6-month-old beef calves at weaning in relation to milk yield availability from their dams. Eighteen Hereford or Hereford· Angus crossbred primiparous cows from a single herd remained with their calves suckling until the beginning of the experiment (194.1 1.9 days after calving). On day 0, calves were moved to a 100-m2 corral far from their mothers, which were taken to a field more than 1000 m away, and returned to the original paddock on day 1. Milk production was determined monthly during the lactation period in 14 of the 18 cows. Calves? behaviour was recorded using instantaneous sampling of individual animals in each group every 10 min from 0800 to 0950, 1200 to 1350, and 1600 to 1750 hours. Recordings were performed from day ?3 to day 5, except on day 0. The calves from the five cows with higher milk yield (HMY) and the calves from the five cows with lower milk yield (LMY) were considered for data analysis. Milk yield was greater in HMY than LMY cows throughout all the lactation. HMY calves tended to suckle more frequently than LMY calves. There were no differences in average daily gain after weaning between HMY and LMY calves. However, HMY calves were heavier at weaning than LMY calves. The frequency of grazing, ruminating, walking and standing differed between HMY and LMY calves, and was affected by weaning. For example, calves from HMY cows spent less time g... Presentar Todo |
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Palabras claves : |
BEEF CALVES. |
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Thesagro : |
DESTETE PRECOZ; GANADO LECHERO; TERNEROS. |
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Asunto categoría : |
L02 Alimentación animal |
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Marc : |
LEADER 02548naa a2200229 a 4500
001 1050221
005 2020-01-29
008 2009 bl uuuu u00u1 u #d
024 7 $a10.1071/AN09037$2DOI
100 1 $aUNGERFELD, R.
245 $aBehavioural changes at weaning in 6-month-old beef calves reared by cows of high or low milk yield.$h[electronic resource]
260 $c2009
500 $aArticle history: Manuscript received 5 March 2009, accepted 9 May 2009.
520 $aAbstract: The objective of this experiment was to determine the differences in behavioural changes observed in 6-month-old beef calves at weaning in relation to milk yield availability from their dams. Eighteen Hereford or Hereford· Angus crossbred primiparous cows from a single herd remained with their calves suckling until the beginning of the experiment (194.1 1.9 days after calving). On day 0, calves were moved to a 100-m2 corral far from their mothers, which were taken to a field more than 1000 m away, and returned to the original paddock on day 1. Milk production was determined monthly during the lactation period in 14 of the 18 cows. Calves? behaviour was recorded using instantaneous sampling of individual animals in each group every 10 min from 0800 to 0950, 1200 to 1350, and 1600 to 1750 hours. Recordings were performed from day ?3 to day 5, except on day 0. The calves from the five cows with higher milk yield (HMY) and the calves from the five cows with lower milk yield (LMY) were considered for data analysis. Milk yield was greater in HMY than LMY cows throughout all the lactation. HMY calves tended to suckle more frequently than LMY calves. There were no differences in average daily gain after weaning between HMY and LMY calves. However, HMY calves were heavier at weaning than LMY calves. The frequency of grazing, ruminating, walking and standing differed between HMY and LMY calves, and was affected by weaning. For example, calves from HMY cows spent less time grazing before and after weaning than calves from LMY cows. There were also interactions between group and time on the frequency of these behaviours. Overall, we conclude that the behaviour of 6-month-old beef calves at weaning differed according to their mothers? milk yield, and their developmental growth stage.
650 $aDESTETE PRECOZ
650 $aGANADO LECHERO
650 $aTERNEROS
653 $aBEEF CALVES
700 1 $aQUINTANS, G.
700 1 $aENRÍQUEZ, D.H.
700 1 $aHÖTZEL, M.J.
773 $tAnimal Production Science, 2009$gv. 49, no. 8, p. 637-642.
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INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Las Brujas. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
17/06/2021 |
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Tipo de producción científica : |
Documentos |
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Autor : |
SANDERS, D.; HOYT, G.; MONKS, D.; LOUWS, F.; GILSANZ, J.C.; ARBOLEYA, J.; PAULLIER, J.; MAESO, D. |
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Afiliación : |
DOUGLAS SANDERS; JUAN CARLOS GILSANZ MARTINEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JORGE EDUARDO ARBOLEYA DUFOUR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JORGE ARTURO PAULLIER SUAREZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DIEGO CESAR MAESO TOZZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Mínimo laboreo y secuencias de cultivo en horticultura. |
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Fecha de publicación : |
2000 |
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Fuente / Imprenta : |
In: INIA Las Brujas. Manejo conservacionista de los suelos en horticultura. Taller, 14 y 15 de marzo 2000, INIA Las Brujas. Canelones (UY), 2000. |
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Páginas : |
p. 51-53 |
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Idioma : |
Español |
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Contenido : |
En el Uruguay la producción hortícola se realiza mayormente en la región Sur. Dentro de esta gran área existen zonas con suelos degradados por alta intensidad del laboreo del suelo. Como consecuencia son comunes los problemas de estructura y fertilidad de suelo y una mayor incidencia de plagas y enfermedades.
Este trabajo propone evaluar la toma de nutrientes por parte de los cultivos involucrados a través de distintas secuencias, la incidencia de las enfermedades y plagas así como una evaluación económica de los diferentes sistemas. Se evaluará el efecto de mantener un abono verde invernal en la fertilidad, biología del suelo, malezas, enfermedades, nemátodos e insectos. Este mismo estudio se realizará al mismo tiempo en el hemisferio norte, en la Universidad del estado de Carolina del Norte, como forma de lograr un efecto sinérgico en la infommción generada al realizarse simultáneamente y a contra estación. |
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Thesagro : |
CULTIVO SECUENCIAL; LABRANZA MINIMA; SISTEMAS DE CULTIVO. |
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Asunto categoría : |
-- |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15693/1/taller-manejo-suelos-2000.pdf;#page=53
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Marc : |
LEADER 01680naa a2200253 a 4500
001 1010635
005 2021-06-17
008 2000 bl uuuu u00u1 u #d
100 1 $aSANDERS, D.
245 $aMínimo laboreo y secuencias de cultivo en horticultura.
260 $c2000
300 $ap. 51-53
520 $aEn el Uruguay la producción hortícola se realiza mayormente en la región Sur. Dentro de esta gran área existen zonas con suelos degradados por alta intensidad del laboreo del suelo. Como consecuencia son comunes los problemas de estructura y fertilidad de suelo y una mayor incidencia de plagas y enfermedades. Este trabajo propone evaluar la toma de nutrientes por parte de los cultivos involucrados a través de distintas secuencias, la incidencia de las enfermedades y plagas así como una evaluación económica de los diferentes sistemas. Se evaluará el efecto de mantener un abono verde invernal en la fertilidad, biología del suelo, malezas, enfermedades, nemátodos e insectos. Este mismo estudio se realizará al mismo tiempo en el hemisferio norte, en la Universidad del estado de Carolina del Norte, como forma de lograr un efecto sinérgico en la infommción generada al realizarse simultáneamente y a contra estación.
650 $aCULTIVO SECUENCIAL
650 $aLABRANZA MINIMA
650 $aSISTEMAS DE CULTIVO
700 1 $aHOYT, G.
700 1 $aMONKS, D.
700 1 $aLOUWS, F.
700 1 $aGILSANZ, J.C.
700 1 $aARBOLEYA, J.
700 1 $aPAULLIER, J.
700 1 $aMAESO, D.
773 $tIn: INIA Las Brujas. Manejo conservacionista de los suelos en horticultura. Taller, 14 y 15 de marzo 2000, INIA Las Brujas. Canelones (UY), 2000.
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