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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
02/10/2017 |
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Actualizado : |
02/10/2017 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
LANFRANCO, B.; CASTAÑO, J.P. |
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Afiliación : |
BRUNO ANTONIO LANFRANCO CRESPO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSE PEDRO CASTAÑO SANCHEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Hedonic pricing of grass-fed cattle in Uruguay: effect of regional resource endowments. (Original research). |
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Fecha de publicación : |
2017 |
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Fuente / Imprenta : |
Rangeland Ecology and Management, 2017, 70(5):549-559. |
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ISSN : |
1550-7424 |
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DOI : |
10.1016/j.rama.2017.04.001 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 23 March 2016; Received in revised form 24 March 2017; Accepted 3 April 2017; Available online xxxx.
This work is part of the normal research activities carried out by the authors as staff members of the National Agricultural Research Institute of Uruguay (INIA, Instituto Nacional
de Investigación Agropecuaria). The project was financed 100% by this institution . |
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Contenido : |
ABSTRACT.
A hedonic model of feeder and replacement cattle prices in Uruguay was specified to include both permanent agroecological factors (soil productivity and water holding capacity [WHC]) and nonpermanent factors (season, available soil moisture, and pasture conditions) as explanatory variables. Results indicate that predominant agroecological endowments (soil characteristics, water availability, and average seasonal climatic conditions) determine geographic price patterns for cattle produced under extensive production systems. In addition, weather variability and especially extreme events have an important impact on short-run cattle markets. As pasture conditions improve or precipitation increases (e.g., both soil moisture and surface runoff), livestock prices tend to fall, ceteris paribus. A cattle price gap between different regions of Uruguay based on permanent resource endowments (e.g., soil productivity and WHC) and temporary agroecological conditions exists and is illustrated using a series of iso-price maps. The hedonic price model also included various cattle characteristics and marketing conditions as explanatory variables. Grass-fed cattle in Uruguay are not a homogeneous commodity; video auction prices incorporate information about a range of agroecological factors that influence cattle production, marketing patterns, as well as perceived and actual cattle quality and performance.
© 2017 The Society for Range Management. Published by Elsevier Inc. All rights reserved. MenosABSTRACT.
A hedonic model of feeder and replacement cattle prices in Uruguay was specified to include both permanent agroecological factors (soil productivity and water holding capacity [WHC]) and nonpermanent factors (season, available soil moisture, and pasture conditions) as explanatory variables. Results indicate that predominant agroecological endowments (soil characteristics, water availability, and average seasonal climatic conditions) determine geographic price patterns for cattle produced under extensive production systems. In addition, weather variability and especially extreme events have an important impact on short-run cattle markets. As pasture conditions improve or precipitation increases (e.g., both soil moisture and surface runoff), livestock prices tend to fall, ceteris paribus. A cattle price gap between different regions of Uruguay based on permanent resource endowments (e.g., soil productivity and WHC) and temporary agroecological conditions exists and is illustrated using a series of iso-price maps. The hedonic price model also included various cattle characteristics and marketing conditions as explanatory variables. Grass-fed cattle in Uruguay are not a homogeneous commodity; video auction prices incorporate information about a range of agroecological factors that influence cattle production, marketing patterns, as well as perceived and actual cattle quality and performance.
© 2017 The Society for Range Management. Published by Elsevier Inc. All right... Presentar Todo |
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Palabras claves : |
AGROECOLOGICAL CONDITIONS; CATTLE PRICES; GRAS-FED; HEDONIC MODEL; PROVENANCE; RESOURCE ENDOWMENT. |
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Asunto categoría : |
L01 Ganadería |
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Marc : |
LEADER 02623naa a2200241 a 4500
001 1057618
005 2017-10-02
008 2017 bl uuuu u00u1 u #d
022 $a1550-7424
024 7 $a10.1016/j.rama.2017.04.001$2DOI
100 1 $aLANFRANCO, B.
245 $aHedonic pricing of grass-fed cattle in Uruguay$beffect of regional resource endowments. (Original research).$h[electronic resource]
260 $c2017
500 $aArticle history: Received 23 March 2016; Received in revised form 24 March 2017; Accepted 3 April 2017; Available online xxxx. This work is part of the normal research activities carried out by the authors as staff members of the National Agricultural Research Institute of Uruguay (INIA, Instituto Nacional de Investigación Agropecuaria). The project was financed 100% by this institution .
520 $aABSTRACT. A hedonic model of feeder and replacement cattle prices in Uruguay was specified to include both permanent agroecological factors (soil productivity and water holding capacity [WHC]) and nonpermanent factors (season, available soil moisture, and pasture conditions) as explanatory variables. Results indicate that predominant agroecological endowments (soil characteristics, water availability, and average seasonal climatic conditions) determine geographic price patterns for cattle produced under extensive production systems. In addition, weather variability and especially extreme events have an important impact on short-run cattle markets. As pasture conditions improve or precipitation increases (e.g., both soil moisture and surface runoff), livestock prices tend to fall, ceteris paribus. A cattle price gap between different regions of Uruguay based on permanent resource endowments (e.g., soil productivity and WHC) and temporary agroecological conditions exists and is illustrated using a series of iso-price maps. The hedonic price model also included various cattle characteristics and marketing conditions as explanatory variables. Grass-fed cattle in Uruguay are not a homogeneous commodity; video auction prices incorporate information about a range of agroecological factors that influence cattle production, marketing patterns, as well as perceived and actual cattle quality and performance. © 2017 The Society for Range Management. Published by Elsevier Inc. All rights reserved.
653 $aAGROECOLOGICAL CONDITIONS
653 $aCATTLE PRICES
653 $aGRAS-FED
653 $aHEDONIC MODEL
653 $aPROVENANCE
653 $aRESOURCE ENDOWMENT
700 1 $aCASTAÑO, J.P.
773 $tRangeland Ecology and Management, 2017, 70(5):549-559.
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INIA Las Brujas (LB) |
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| Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
07/11/2018 |
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Actualizado : |
07/11/2018 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
DAMIÁN, J.P.; HÖTZEL ,M.J.; BANCHERO, G.; UNGERFELD, R. |
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Afiliación : |
JUAN PABLO DAMIÁN, UdelaR (Universidad de la República), FVET ( Facultad de Veterinaria), Montevideo, Uruguay.; MARIA JOSÉ HÖTZEL, Laboratório de Etologia Aplicada e Bem-Estar Animal, Departamento de Zootecnia e Desenvolvimento Rural, Universidade Federal de Santa Catarina, Brazil.; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RODOLFO UNGERFELD, UdelaR (Universidad de la República), FVET ( Facultad de Veterinaria), Montevideo, Uruguay. |
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Título : |
Growing without a mother during rearing affects the response to stressors in rams. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
Applied Animal Behaviour Science, December 2018, volumen 209, pages 36-40. |
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DOI : |
10.1016/j.applanim.2018.08.022 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 18 September 2017 // Received in revised form 7 August 2018 // Accepted 31 August 2018 // Available online 05 September 2018. |
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Contenido : |
ABSTRACT.
Early maternal care contributes to the normal development of the physiological, social and emotional functions of the offspring. As sheep are a strongly gregarious species, separation and isolation of an individual from the flock provokes fear and, consequently a stress response. The first aim of this study was to compare the stress response to social isolation of rams that were reared by their mothers or artificially reared. A complementary objective was to compare the cortisol response to an ACTH challenge in both groups of rams. Rams were: 1) separated from their dams 24?36 h after birth (Week 0) and artificially fed with sheep milk until Week 10 (group AR, n = 14); or 2) reared by their dams until Week 10 (group DR, n = 13). The rams were then kept in separate, adjacent paddocks for the rest of the study. When they were 8 months old, 10 animals randomly selected from each group were isolated from the group in an unfamiliar pen during 10 min. Behavioural (the number of lines crossed, frequencies of vocalizations, eliminations, sniffing, escape attempts and freezing), physiological (heart and respiratory rate, and rectal temperature), biochemical (total blood proteins, globulins and albumin), and endocrine (serum cortisol concentrations) variables were recorded. Dam-reared rams eliminated (defecations + urinations) more times and crossed more lines during the social isolation test than AR lambs (P < 0.05). The increase in total proteins and albumin concentration after the social isolation test was also greater in DR than AR rams (P = 0.01 and P < 0.01 respectively). Artificially-reared rams had greater globulin concentration than DR rams after the test (P = 0.04). When rams were 2 years old, ACTH was administered to 10 rams randomly selected from each group, and the cortisol response was measured. Dam-reared rams had greater cortisol concentrations than AR rams at 150 and 180 min after the administration of ACTH (P < 0.05). In conclusion, artificially reared rams were less affected by social isolation and had lower adrenal response to an ACTH challenge than rams reared by their mothers. This study suggests that the relationship with the mother plays a key role in the development of rams? social behaviour. © 2018 Elsevier B.V. MenosABSTRACT.
Early maternal care contributes to the normal development of the physiological, social and emotional functions of the offspring. As sheep are a strongly gregarious species, separation and isolation of an individual from the flock provokes fear and, consequently a stress response. The first aim of this study was to compare the stress response to social isolation of rams that were reared by their mothers or artificially reared. A complementary objective was to compare the cortisol response to an ACTH challenge in both groups of rams. Rams were: 1) separated from their dams 24?36 h after birth (Week 0) and artificially fed with sheep milk until Week 10 (group AR, n = 14); or 2) reared by their dams until Week 10 (group DR, n = 13). The rams were then kept in separate, adjacent paddocks for the rest of the study. When they were 8 months old, 10 animals randomly selected from each group were isolated from the group in an unfamiliar pen during 10 min. Behavioural (the number of lines crossed, frequencies of vocalizations, eliminations, sniffing, escape attempts and freezing), physiological (heart and respiratory rate, and rectal temperature), biochemical (total blood proteins, globulins and albumin), and endocrine (serum cortisol concentrations) variables were recorded. Dam-reared rams eliminated (defecations + urinations) more times and crossed more lines during the social isolation test than AR lambs (P < 0.05). The increase in total proteins and albumin concentration ... Presentar Todo |
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Palabras claves : |
CORTISOL; MOTHER-OFFSPRING BOND; SHEEP; STRESS. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 03098naa a2200229 a 4500
001 1059281
005 2018-11-07
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1016/j.applanim.2018.08.022$2DOI
100 1 $aDAMIÁN, J.P.
245 $aGrowing without a mother during rearing affects the response to stressors in rams.$h[electronic resource]
260 $c2018
500 $aArticle history: Received 18 September 2017 // Received in revised form 7 August 2018 // Accepted 31 August 2018 // Available online 05 September 2018.
520 $aABSTRACT. Early maternal care contributes to the normal development of the physiological, social and emotional functions of the offspring. As sheep are a strongly gregarious species, separation and isolation of an individual from the flock provokes fear and, consequently a stress response. The first aim of this study was to compare the stress response to social isolation of rams that were reared by their mothers or artificially reared. A complementary objective was to compare the cortisol response to an ACTH challenge in both groups of rams. Rams were: 1) separated from their dams 24?36 h after birth (Week 0) and artificially fed with sheep milk until Week 10 (group AR, n = 14); or 2) reared by their dams until Week 10 (group DR, n = 13). The rams were then kept in separate, adjacent paddocks for the rest of the study. When they were 8 months old, 10 animals randomly selected from each group were isolated from the group in an unfamiliar pen during 10 min. Behavioural (the number of lines crossed, frequencies of vocalizations, eliminations, sniffing, escape attempts and freezing), physiological (heart and respiratory rate, and rectal temperature), biochemical (total blood proteins, globulins and albumin), and endocrine (serum cortisol concentrations) variables were recorded. Dam-reared rams eliminated (defecations + urinations) more times and crossed more lines during the social isolation test than AR lambs (P < 0.05). The increase in total proteins and albumin concentration after the social isolation test was also greater in DR than AR rams (P = 0.01 and P < 0.01 respectively). Artificially-reared rams had greater globulin concentration than DR rams after the test (P = 0.04). When rams were 2 years old, ACTH was administered to 10 rams randomly selected from each group, and the cortisol response was measured. Dam-reared rams had greater cortisol concentrations than AR rams at 150 and 180 min after the administration of ACTH (P < 0.05). In conclusion, artificially reared rams were less affected by social isolation and had lower adrenal response to an ACTH challenge than rams reared by their mothers. This study suggests that the relationship with the mother plays a key role in the development of rams? social behaviour. © 2018 Elsevier B.V.
653 $aCORTISOL
653 $aMOTHER-OFFSPRING BOND
653 $aSHEEP
653 $aSTRESS
700 1 $aHÖTZEL ,M.J.
700 1 $aBANCHERO, G.
700 1 $aUNGERFELD, R.
773 $tApplied Animal Behaviour Science, December 2018, volumen 209, pages 36-40.
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