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Correlated Response to Selection and...

Harford, Isaac David.

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Correlated Response to Selection and Effects of Pre-Slaughter Environment on Meat Quality in Broilers Divergently Selected for Muscle Color.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Correlated Response to Selection and Effects of Pre-Slaughter Environment on Meat Quality in Broilers Divergently Selected for Muscle Color./
Author:	Harford, Isaac David.
Description:	98 p.
Notes:	Source: Dissertation Abstracts International, Volume: 75-11(E), Section: B.
Contained By:	Dissertation Abstracts International75-11B(E).
Subject:	Agriculture, Animal Culture and Nutrition. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3631297
ISBN:	9781321097252

Correlated Response to Selection and Effects of Pre-Slaughter Environment on Meat Quality in Broilers Divergently Selected for Muscle Color.
Harford, Isaac David.

Correlated Response to Selection and Effects of Pre-Slaughter Environment on Meat Quality in Broilers Divergently Selected for Muscle Color. - 98 p.

Source: Dissertation Abstracts International, Volume: 75-11(E), Section: B.

Thesis (Ph.D.)--University of Arkansas, 2014.

Two broiler lines divergently selected for high (HMC) and low (LMC) muscle lightness (L*) were formed from a random bred control line (RBC). After eight generations of selection, three experimental trials were conducted to investigate the correlated response to selection and effects of pre-slaughter environment on meat quality in all three lines.

ISBN: 9781321097252Subjects--Topical Terms:

1017857
Agriculture, Animal Culture and Nutrition.

Correlated Response to Selection and Effects of Pre-Slaughter Environment on Meat Quality in Broilers Divergently Selected for Muscle Color.
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020 $a 9781321097252
035 $a (MiAaPQ)AAI3631297
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100 1 $a Harford, Isaac David. $3 3169391
245 1 0 $a Correlated Response to Selection and Effects of Pre-Slaughter Environment on Meat Quality in Broilers Divergently Selected for Muscle Color.
300 $a 98 p.
500 $a Source: Dissertation Abstracts International, Volume: 75-11(E), Section: B.
500 $a Adviser: Nick B. Anthony.
502 $a Thesis (Ph.D.)--University of Arkansas, 2014.
520 $a Two broiler lines divergently selected for high (HMC) and low (LMC) muscle lightness (L*) were formed from a random bred control line (RBC). After eight generations of selection, three experimental trials were conducted to investigate the correlated response to selection and effects of pre-slaughter environment on meat quality in all three lines.
520 $a In the first experiment, a total of 100 birds from each line were bled for blood chemistry analysis and were evaluated for meat quality the following day. The HMC line had higher fillet drip loss (DL), L*, heterophil to lymphocyte ratio (H:L), and platelet count (Plt), and lower postmortem muscle pH, lower red blood cell count (RBCC) and hematocrit (HCT) than the LMC line.
520 $a In the second experiment, the effects of pre-slaughter transportation on meat quality were investigated. Sixty birds from each line were selected and placed into transport (T) and non-transport (NT) groups. The T group was transported for approximately 3 h prior to processing. In both treatments, the HMC line had higher DL, L*, and b*, and lower postmortem muscle pH and a* than the LMC line. Within the HMC line, the T group had higher DL, and L*, and lower postmortem pH. Within the LMC line, the T group had higher a*, and lower L* and b*.
520 $a In the third experiment, the effects of pre-slaughter temperature (40°C, 22°C, 1°C) on meat quality were investigated. Twenty birds from each line were selected and placed into heat stress (HS), cold stress (CS), and control groups for 2 h prior to processing. In all treatments, the HMC line had higher DL and L*, and lower muscle pH than the LMC line. In all lines, the HS group had lower DL and muscle pH than the control, whereas the CS group just had lower DL than the control, however within the LMC line the CS group had higher a*, and lower L* and b* than the control group.
590 $a School code: 0011.
650 4 $a Agriculture, Animal Culture and Nutrition. $3 1017857
690 $a 0475
710 2 $a University of Arkansas. $b Poultry Science. $3 2091882
773 0 $t Dissertation Abstracts International $g 75-11B(E).
790 $a 0011
791 $a Ph.D.
792 $a 2014
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3631297