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dc.contributor.author
Relling, Alejandro Enrique
dc.contributor.author
Crompton, L. A.
dc.contributor.author
Loerch, S. C.
dc.contributor.author
Reynolds, C. K.
dc.date.available
2017-01-18T21:24:23Z
dc.date.issued
2014-04
dc.identifier.citation
Relling, Alejandro Enrique; Crompton, L. A.; Loerch, S. C.; Reynolds, C. K.; Plasma concentration of glucose-dependent insulinotropic polypeptide may regulate milk energy production in lactating dairy cows; Amer Dairy Science Assoc-adsa; Journal Of Dairy Science; 97; 4; 4-2014; 2440-2443
dc.identifier.issn
0022-0302
dc.identifier.uri
http://hdl.handle.net/11336/11618
dc.description.abstract
In dairy cows, an increase in plasma concentration of glucose-dependent insulinotropic polypeptide (GIP) is associated with an increase in metabolizable energy intake, but the role of GIP in energy partitioning of dairy cattle is not certain. The objective of this study was to examine the relationship between plasma GIP concentrations and energy partitioning toward milk production. Four mid-lactation, primiparous, rumen-fistulated Holstein-Friesian cows were fed a control diet of 55% forage and 45% concentrate [dry matter (DM) basis] in a 4 × 4 Latin square design with 4-wk periods. The 4 treatments were (1) control diet fed at 1000 and 1600 h, and (2) once-daily (1000 h) feeding, (3) twice-daily (1000 and 1600 h) feeding, and (4) 4 times/d (1000, 1600, 2200 and 0400 h) feeding of the control diet plus 1 dose (1.75 kg on a DM basis at 0955 h) into the rumen of supplemental vegetable proteins (Amino Green; SCA NuTec Ltd., Thirsk, UK). Measurements of respiratory exchange and energy balance were obtained over 4 d during the last week of each period while cows were housed in open-circuit respiration chambers. Blood was collected from the jugular vein every 30 min for 12 h, using indwelling catheters, starting at 0800 h on d 20 of each period. Plasma GIP concentration was measured in samples pooled over each 5 consecutive blood samplings. The relationships between plasma GIP, DM intake, heat production, respiratory quotient (RQ), milk yield, and milk energy output were analyzed using linear correlation procedures, with metabolizable intake as a partial variant. Plasma GIP concentration was not correlated with heat production, or milk yield, but was positively correlated with milk energy yield (correlation coefficient = 0.67) and negatively correlated with RQ (correlation coefficient = −0.72). The correlations between GIP with RQ and milk energy output do not imply causality, but support a role for GIP in the regulation of energy metabolism in dairy cows.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Amer Dairy Science Assoc-adsa
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Dairy Cow
dc.subject
Energy Partitioning
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Glucose-Dependent Insulinotropic Polypeptide
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Milk Energy Output
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Otras Producción Animal y Lechería
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Producción Animal y Lechería
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CIENCIAS AGRÍCOLAS
dc.title
Plasma concentration of glucose-dependent insulinotropic polypeptide may regulate milk energy production in lactating dairy cows
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-01-17T19:03:06Z
dc.journal.volume
97
dc.journal.number
4
dc.journal.pagination
2440-2443
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Champaign
dc.description.fil
Fil: Relling, Alejandro Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Genética Veterinaria "ingeniero Fernando Noel Dulout"; Argentina. Ohio State University; Estados Unidos. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias; Argentina
dc.description.fil
Fil: Crompton, L. A.. University Of Reading; Reino Unido
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Fil: Loerch, S. C.. Ohio State University; Estados Unidos
dc.description.fil
Fil: Reynolds, C. K.. University Of Reading; Reino Unido
dc.journal.title
Journal Of Dairy Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3168/jds.2013-7574
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S002203021400085X
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