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| 3. |  | DELEÓN, R.; VICENTE, G.; ZOPPOLO, R.; ARNAUD, A.; MIGUEZ, M. Lidar based, tree row volume estimation for phytosanitary products reduction in fruit trees orchards. [Conference paper]. Proceedings 2nd IEEE International Symposium on Circuits and Systems (ISCAS), October 2020, volume 2020, Article number 91812915. Doi: http://dx.doi.org/10.1109/ISCAS45731.2020.9181291 Article history:
Published in: 2nd IEEE International Symposium on Circuits and Systems, ISCAS 2020, Virtual, Online, 10 October 2020 - 21 October 2020, 169903. Date of Conference, 12-14 Oct 2020. Conference Location: Seville, Spain.| Biblioteca(s): INIA Las Brujas. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
09/10/2014 |
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Actualizado : |
15/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
B - 1 |
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Autor : |
HÖTZEL, M.J.; UNGERFELD, R.; QUINTANS, G. |
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Afiliación : |
GRACIELA QUINTANS ILARIA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Behavioural responses of 6-month-old beef calves prevented from suckling: influence of dams milk yield. |
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Fecha de publicación : |
2010 |
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Fuente / Imprenta : |
Animal Production Science, 2010, v.50, p.909-915. |
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DOI : |
10.1071/AN09136 |
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Idioma : |
Inglés |
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Notas : |
Article history: Manuscript received 9 October 2009, accepted 23 May 2010. |
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Contenido : |
Abstract:
The objective of the present experiment was to compare the behavioural response of calves reared by cows of different milk yields to the prevention of suckling with the aid of nose-flaps that allowed the maintenance of social contact with the dam. Twenty Hereford or Hereford · Angus crossbred primiparous cows from a single herd remained with their calves suckling until the beginning of the experiment, in late summer?early autumn. Milk production was determined monthly during the lactation period and the pairs were selected according to the cows?milk production, for higher or lower milk yield (HMY and LMY, respectively). On Day 0, suckling was prevented by placing a nose-flap anti-suckling device on each calf for 11 days. Calf behaviour was recorded from Day ?3 to Day 5, using instantaneous sampling of individual animals in each group, and the calves were weighed monthly since birth, and on Days ?8 and 11. Bodyweight profiles for HMY and LMY calves were similar until Day ?8; from then on, up to Day 11, HMY calves lost weigh, whereas LMY calves gained weight. Suckling frequency before nose-flaps were fitted was similar for HMY and LMY calves. There was no relationship between the cow?s milk yield and the changes observed in behaviour. Apart from playing, all behaviours were affected by prevention of suckling. The distance between the calves and the dam, and the frequency of grazing and rumination, decreased after nose-flaps were placed, whereas vocalisations, suckling attempts, walking and standing increased. In conclusion, the behavioural responses to prevention of suckling did not differ between the 6-month-old calves reared by cows with high yields andthose withlow milk yields. The behavioural response of calvesthat were prevented from suckling but were kept with the dams indicates that the cessation of suckling contributes to the weaning distress of 6-month-old beef calves. MenosAbstract:
The objective of the present experiment was to compare the behavioural response of calves reared by cows of different milk yields to the prevention of suckling with the aid of nose-flaps that allowed the maintenance of social contact with the dam. Twenty Hereford or Hereford · Angus crossbred primiparous cows from a single herd remained with their calves suckling until the beginning of the experiment, in late summer?early autumn. Milk production was determined monthly during the lactation period and the pairs were selected according to the cows?milk production, for higher or lower milk yield (HMY and LMY, respectively). On Day 0, suckling was prevented by placing a nose-flap anti-suckling device on each calf for 11 days. Calf behaviour was recorded from Day ?3 to Day 5, using instantaneous sampling of individual animals in each group, and the calves were weighed monthly since birth, and on Days ?8 and 11. Bodyweight profiles for HMY and LMY calves were similar until Day ?8; from then on, up to Day 11, HMY calves lost weigh, whereas LMY calves gained weight. Suckling frequency before nose-flaps were fitted was similar for HMY and LMY calves. There was no relationship between the cow?s milk yield and the changes observed in behaviour. Apart from playing, all behaviours were affected by prevention of suckling. The distance between the calves and the dam, and the frequency of grazing and rumination, decreased after nose-flaps were placed, whereas vocalisations, sucklin... Presentar Todo |
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Palabras claves : |
CALVES; MILK PRODUCTION; SUCKLING. |
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Thesagro : |
BOVINOS; CONDUCTA ANIMAL; DESTETE; ESTRES; GANADO DE CARNE; TERNEROS. |
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Asunto categoría : |
L52 Fisiología Animal- Crecimiento y desarrollo |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/3484/1/Quintans-arb-2010-5.pdf
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Marc : |
LEADER 02745naa a2200277 a 4500
001 1051011
005 2019-10-15
008 2010 bl uuuu u00u1 u #d
024 7 $a10.1071/AN09136$2DOI
100 1 $aHÖTZEL, M.J.
245 $aBehavioural responses of 6-month-old beef calves prevented from suckling$binfluence of dams milk yield.$h[electronic resource]
260 $c2010
500 $aArticle history: Manuscript received 9 October 2009, accepted 23 May 2010.
520 $aAbstract: The objective of the present experiment was to compare the behavioural response of calves reared by cows of different milk yields to the prevention of suckling with the aid of nose-flaps that allowed the maintenance of social contact with the dam. Twenty Hereford or Hereford · Angus crossbred primiparous cows from a single herd remained with their calves suckling until the beginning of the experiment, in late summer?early autumn. Milk production was determined monthly during the lactation period and the pairs were selected according to the cows?milk production, for higher or lower milk yield (HMY and LMY, respectively). On Day 0, suckling was prevented by placing a nose-flap anti-suckling device on each calf for 11 days. Calf behaviour was recorded from Day ?3 to Day 5, using instantaneous sampling of individual animals in each group, and the calves were weighed monthly since birth, and on Days ?8 and 11. Bodyweight profiles for HMY and LMY calves were similar until Day ?8; from then on, up to Day 11, HMY calves lost weigh, whereas LMY calves gained weight. Suckling frequency before nose-flaps were fitted was similar for HMY and LMY calves. There was no relationship between the cow?s milk yield and the changes observed in behaviour. Apart from playing, all behaviours were affected by prevention of suckling. The distance between the calves and the dam, and the frequency of grazing and rumination, decreased after nose-flaps were placed, whereas vocalisations, suckling attempts, walking and standing increased. In conclusion, the behavioural responses to prevention of suckling did not differ between the 6-month-old calves reared by cows with high yields andthose withlow milk yields. The behavioural response of calvesthat were prevented from suckling but were kept with the dams indicates that the cessation of suckling contributes to the weaning distress of 6-month-old beef calves.
650 $aBOVINOS
650 $aCONDUCTA ANIMAL
650 $aDESTETE
650 $aESTRES
650 $aGANADO DE CARNE
650 $aTERNEROS
653 $aCALVES
653 $aMILK PRODUCTION
653 $aSUCKLING
700 1 $aUNGERFELD, R.
700 1 $aQUINTANS, G.
773 $tAnimal Production Science, 2010$gv.50, p.909-915.
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