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Relationship of Residual Feed Intake on Specific Hematological and Biochemical Parameters in Rambouillet Sheep

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Author(s): R.M. Rincon-Delgado | H. Gutierrez-Banuelos | E.D. Perez-Vazquez | A. Muro-Reyes | L.H. Diaz-Garcia | R. Banuelos-Valenzuela | F.J. Gutierrez-Pina | C.A. Medina-Flores | L.M. Escareno-Sanchez | J.I. Aguilera-Soto | M.A. Lopez-Carlos | C.F. Arechiga-Flores

Journal: Journal of Animal and Veterinary Advances
ISSN 1680-5593

Volume: 10;
Issue: 9;
Start page: 1112;
Date: 2011;
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Keywords: Erytrocyte | glucose | leucocyte | residual feed intake | triglyceride | sheep | Mexico

ABSTRACT
Relationships of Residual Feed Intake (RFI) on hematological and biochemical parameters were determined in Rambouillet sheep. After feeding period of 42 days (research period), RFI was calculated in 16 rams and 24 ewes. Lowest negative and highest positive RFI (0.5 SD above the mean, respectively) rams (n = 8) and ewes (n = 12) were selected. From RFI-categorized sheep, hematological and biochemical parameters were evaluated at day 0, 21, 42 and at day 0, 42 of the feeding period, respectively. Positive RFI ewes (less efficient) tended (p≤0.10) to have more Red Blood Cells (RBC, 106 μL) (9.66 vs. 7.68) and less Mean Corpuscular Hemoglobin (MCH, pg) (9.59 vs. 12.95) than negative RFI ewes. Positive RFI rams have (p
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