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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
21/02/2014 |
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Actualizado : |
08/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
HOTZEL, M.J.; QUINTANS, G.; UNGERFELD, R. |
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Afiliación : |
GRACIELA QUINTANS ILARIA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Behaviour response to two-step weaning is diminished in beef calves previously submitted to temporary weaning with nose flaps. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
Livestock Science, 2012, v.149, no.1-2, p.88-95. |
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DOI : |
10.1016/j.livsci.2012.06.029 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 21 September 2011. Received in revised form 22 June 2012. Accepted 27 June 2012. |
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Contenido : |
Abstract:
Temporary weaning (TW) of beef calves for 5?14 days is a husbandry practice that is frequently used to help advance rebreeding in postpartum cows. The aim of this study was to compare the behaviour response to two-step weaning with the use of nose flaps, in beef calves that had or not been submitted to TW with nose flaps during the breeding period. Thirteen calves that had been fitted with nose-flap anti-suckling devices from 71 to 84 days of age (TW group), and 11 calves that had not received nose flaps during breeding of their dams (C group) were weaned with a two-step procedure. At 189 days of age, they were fitted with nose flaps and remained with the dams (nose flap period, NF); 14 days later all calves were separated from the dams (permanent separation period, PS). Behaviour was observed from 186 to 193 days of age (NF) and from 200 to 209 days of age (PS). Behaviour data for the NF and PS periods were analysed with mixed models for repeated measures. Before weaning, TW calves had greater proportion of observations suckling and grazing, lower proportion of playing, and remained closer to the dam compared to C calves. During the NF period, C calves had lower frequencies of observations standing, grazing, and drinking water, indicating that calves that had nose flaps during their dams' breeding period adapted faster to the anti-suckling device and the cessation of suckling. During the PS period, C calves had a lower frequency of observations grazing and a greater rate of vocalisations, and TW calves displayed an overall earlier, but shorter behaviour response than C calves. We conclude that the benefits of two-step weaning with nose flaps are greater for calves that have worn nose flaps for temporary weaning during the breeding of their dams. MenosAbstract:
Temporary weaning (TW) of beef calves for 5?14 days is a husbandry practice that is frequently used to help advance rebreeding in postpartum cows. The aim of this study was to compare the behaviour response to two-step weaning with the use of nose flaps, in beef calves that had or not been submitted to TW with nose flaps during the breeding period. Thirteen calves that had been fitted with nose-flap anti-suckling devices from 71 to 84 days of age (TW group), and 11 calves that had not received nose flaps during breeding of their dams (C group) were weaned with a two-step procedure. At 189 days of age, they were fitted with nose flaps and remained with the dams (nose flap period, NF); 14 days later all calves were separated from the dams (permanent separation period, PS). Behaviour was observed from 186 to 193 days of age (NF) and from 200 to 209 days of age (PS). Behaviour data for the NF and PS periods were analysed with mixed models for repeated measures. Before weaning, TW calves had greater proportion of observations suckling and grazing, lower proportion of playing, and remained closer to the dam compared to C calves. During the NF period, C calves had lower frequencies of observations standing, grazing, and drinking water, indicating that calves that had nose flaps during their dams' breeding period adapted faster to the anti-suckling device and the cessation of suckling. During the PS period, C calves had a lower frequency of observations grazing and a great... Presentar Todo |
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Palabras claves : |
AFFECTIVE STATE; ANIMAL WELFARE; CATTLE; MOTHER-OFFSPRING BOND; SUCKLING. |
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Thesagro : |
AMAMANTAMIENTO; BIENESTAR DE LOS ANIMALES; BOVINOS; DESTETE TEMPORARIO; TABLILLA NASAL. |
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Asunto categoría : |
L02 Alimentación animal |
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Marc : |
LEADER 02727naa a2200289 a 4500
001 1032762
005 2019-10-08
008 2012 bl uuuu u00u1 u #d
024 7 $a10.1016/j.livsci.2012.06.029$2DOI
100 1 $aHOTZEL, M.J.
245 $aBehaviour response to two-step weaning is diminished in beef calves previously submitted to temporary weaning with nose flaps.
260 $c2012
500 $aArticle history: Received 21 September 2011. Received in revised form 22 June 2012. Accepted 27 June 2012.
520 $aAbstract: Temporary weaning (TW) of beef calves for 5?14 days is a husbandry practice that is frequently used to help advance rebreeding in postpartum cows. The aim of this study was to compare the behaviour response to two-step weaning with the use of nose flaps, in beef calves that had or not been submitted to TW with nose flaps during the breeding period. Thirteen calves that had been fitted with nose-flap anti-suckling devices from 71 to 84 days of age (TW group), and 11 calves that had not received nose flaps during breeding of their dams (C group) were weaned with a two-step procedure. At 189 days of age, they were fitted with nose flaps and remained with the dams (nose flap period, NF); 14 days later all calves were separated from the dams (permanent separation period, PS). Behaviour was observed from 186 to 193 days of age (NF) and from 200 to 209 days of age (PS). Behaviour data for the NF and PS periods were analysed with mixed models for repeated measures. Before weaning, TW calves had greater proportion of observations suckling and grazing, lower proportion of playing, and remained closer to the dam compared to C calves. During the NF period, C calves had lower frequencies of observations standing, grazing, and drinking water, indicating that calves that had nose flaps during their dams' breeding period adapted faster to the anti-suckling device and the cessation of suckling. During the PS period, C calves had a lower frequency of observations grazing and a greater rate of vocalisations, and TW calves displayed an overall earlier, but shorter behaviour response than C calves. We conclude that the benefits of two-step weaning with nose flaps are greater for calves that have worn nose flaps for temporary weaning during the breeding of their dams.
650 $aAMAMANTAMIENTO
650 $aBIENESTAR DE LOS ANIMALES
650 $aBOVINOS
650 $aDESTETE TEMPORARIO
650 $aTABLILLA NASAL
653 $aAFFECTIVE STATE
653 $aANIMAL WELFARE
653 $aCATTLE
653 $aMOTHER-OFFSPRING BOND
653 $aSUCKLING
700 1 $aQUINTANS, G.
700 1 $aUNGERFELD, R.
773 $tLivestock Science, 2012$gv.149, no.1-2, p.88-95.
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INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
17/06/2015 |
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Actualizado : |
25/09/2018 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - B |
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Autor : |
GODWIN, I.; LI, L.; LUIJBEN, K.; OELBRANDT, N.; VELAZCO, J.I.; MILLER, J.; HEGARTY, R. |
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Afiliación : |
SCHOOL OF ENVIRONMENTAL AND RURAL SCIENCE, UNIVERSITY OF NEW ENGLAND; SCHOOL OF ENVIRONMENTAL AND RURAL SCIENCE, UNIVERSITY OF NEW ENGLAND; SCHOOL OF ENVIRONMENTAL AND RURAL SCIENCE, UNIVERSITY OF NEW ENGLAND; SCHOOL OF ENVIRONMENTAL AND RURAL SCIENCE, UNIVERSITY OF NEW ENGLAND; JOSÉ IGNACIO VELAZCO DE LOS REYES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SCHOOL OF ENVIRONMENTAL AND RURAL SCIENCE, UNIVERSITY OF NEW ENGLAND; SCHOOL OF ENVIRONMENTAL AND RURAL SCIENCE, UNIVERSITY OF NEW ENGLAND. |
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Título : |
The effects of chronic nitrate supplementation on erythrocytic methaemoglobin reduction in cattle. |
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Fecha de publicación : |
2015 |
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Fuente / Imprenta : |
Animal Production Science, 2015, v. 55(5), p. 611-616. |
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ISSN : |
1836-0939; eISSN: 1836-5787 |
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DOI : |
http://dx.doi.org/10.1071/AN13366 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 2 September 2013, accepted 6 February 2014, published online 8 May 2014. |
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Contenido : |
Abstract:
Calcium nitrate and urea were fed as a supplement on an isonitrogenous basis to Angus steers and their erythrocytic methaemoglobin concentrations and NADH- and NADPH-methaemoglobin reductase levels were measured over a 54-day period. Methaemoglobin concentrations remained elevated despite increases in NADH-methaemoglobin reductase activity. In a second experiment, Brahman cross steers were fed either calcium nitrate or urea supplements for 111 days. Blood cells were then taken, washed and exposed to sodium nitrite to convert all haemoglobin to methaemoglobin.
The rates of glycolysis and methaemoglobin reduction were measured following incubation of these cells in buffers containing 1, 5 or 10 mM inorganic phosphate. Glucose consumption and methaemoglobin reduction were increased by inorganic phosphate and were more rapid in those animals supplemented with nitrate. Lactate production of erythrocytes was reduced in those animals fed nitrate. It is concluded that adaptation to chronic nitrite exposure occurs in the erythron, resulting in greater methaemoglobin reduction potential and that there is competition between NADH-methaemoglobin reductase and lactate dehydrogenase for NADH. |
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Palabras claves : |
EMISIONES DE GASES; EMISIONES DE METANO; FOSFATO INORGÁNICO; INORGANIC PHOSPHATE; METAHEMOGLOBINA REDUCTASA; METHAEMOGLOBIN REDUCTASE. |
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Thesagro : |
BOVINOS; DIETA; SUPLEMENTACION. |
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Asunto categoría : |
L20 Ecología animal |
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Marc : |
LEADER 02263naa a2200337 a 4500
001 1052767
005 2018-09-25
008 2015 bl uuuu u00u1 u #d
022 $a1836-0939; eISSN: 1836-5787
024 7 $ahttp://dx.doi.org/10.1071/AN13366$2DOI
100 1 $aGODWIN, I.
245 $aThe effects of chronic nitrate supplementation on erythrocytic methaemoglobin reduction in cattle.
260 $c2015
500 $aArticle history: Received 2 September 2013, accepted 6 February 2014, published online 8 May 2014.
520 $aAbstract: Calcium nitrate and urea were fed as a supplement on an isonitrogenous basis to Angus steers and their erythrocytic methaemoglobin concentrations and NADH- and NADPH-methaemoglobin reductase levels were measured over a 54-day period. Methaemoglobin concentrations remained elevated despite increases in NADH-methaemoglobin reductase activity. In a second experiment, Brahman cross steers were fed either calcium nitrate or urea supplements for 111 days. Blood cells were then taken, washed and exposed to sodium nitrite to convert all haemoglobin to methaemoglobin. The rates of glycolysis and methaemoglobin reduction were measured following incubation of these cells in buffers containing 1, 5 or 10 mM inorganic phosphate. Glucose consumption and methaemoglobin reduction were increased by inorganic phosphate and were more rapid in those animals supplemented with nitrate. Lactate production of erythrocytes was reduced in those animals fed nitrate. It is concluded that adaptation to chronic nitrite exposure occurs in the erythron, resulting in greater methaemoglobin reduction potential and that there is competition between NADH-methaemoglobin reductase and lactate dehydrogenase for NADH.
650 $aBOVINOS
650 $aDIETA
650 $aSUPLEMENTACION
653 $aEMISIONES DE GASES
653 $aEMISIONES DE METANO
653 $aFOSFATO INORGÁNICO
653 $aINORGANIC PHOSPHATE
653 $aMETAHEMOGLOBINA REDUCTASA
653 $aMETHAEMOGLOBIN REDUCTASE
700 1 $aLI, L.
700 1 $aLUIJBEN, K.
700 1 $aOELBRANDT, N.
700 1 $aVELAZCO, J.I.
700 1 $aMILLER, J.
700 1 $aHEGARTY, R.
773 $tAnimal Production Science, 2015$gv. 55(5), p. 611-616.
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