López Luján, MDC.; Fernández Martínez, CJ. (2013). Changes in heat production by sheep of Guirra breed after increase in quantity of barley grain on the diet. Small Ruminant Research. 109(2-3):113-118. https://doi.org/10.1016/j.smallrumres.2012.07.008
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/63868
Title:
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Changes in heat production by sheep of Guirra breed after increase in quantity of barley grain on the diet
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Author:
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López Luján, Mª del Carmen
Fernández Martínez, Carlos Javier
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UPV Unit:
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Universitat Politècnica de València. Instituto de Ciencia y Tecnología Animal - Institut de Ciència i Tecnologia Animal
Universitat Politècnica de València. Departamento de Ciencia Animal - Departament de Ciència Animal
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Issued date:
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Abstract:
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The heat production (HP) from CH4 and CO2 production and O-2 consumption was determined by the respirometry quotient (RQ) method and by C-N balance measurements (CN method). Twelve dry and none pregnant Guirras sheep were ...[+]
The heat production (HP) from CH4 and CO2 production and O-2 consumption was determined by the respirometry quotient (RQ) method and by C-N balance measurements (CN method). Twelve dry and none pregnant Guirras sheep were fed with 3 diets consisting in the same quantity of alfalfa hay (2 kg/d offered) and increasing quantities of barley grain (150,300 and 450 g/d). The experimental design was completely random with 4 replication by treatment. Fasting HP was determinate in one sheep from each group. Ewes were allocated to individual metabolism cages at thermoneutrality. After 10 d of adaptation, feed intake, and total fecal and urine output were recorded daily for each ewe during a 5 d period, as well as BW at the beginning and end of the period. Gas exchange measurements were recorded by open-circuit face mask respirometry system. Average HP measured by RQ method was in agreement with the average HP determined by CN method accounting for 395.6 and 393.4 kJ/kg(0.75) BW/d, respectively. The metabolizable energy requirement for maintenance (MEm) was estimated by linear regression at 352.3 kJ/kg(0.75) BW. (C) 2012 Elsevier B.V. All rights reserved.
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Subjects:
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Gas exchange
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Heat production
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Indirect calorimetry
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Guirra ewe
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Copyrigths:
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Cerrado |
Source:
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Small Ruminant Research. (issn:
0921-4488
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DOI:
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10.1016/j.smallrumres.2012.07.008
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Publisher:
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Elsevier
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Publisher version:
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http://dx.doi.org/10.1016/j.smallrumres.2012.07.008
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Project ID:
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info:eu-repo/grantAgreement/MICINN//RTA2011-00107-C02-02/ES/Utilización de los carbohidratos de la dieta como indicadores técnicos de la producción de metano en rumiantes lecheros/
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Thanks:
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This study was supported by Agroalimed Foundation and INIA Project (ref. RTA2011-00107-C02-02).
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Type:
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Artículo
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