Effect of slaughter age and post-mortem days on meat quality of longissimus and semimembranosus muscles of Boer goats

Archana Abhijith; Robyn D. Warner; Minh Ha; Frank R. Dunshea; Brian J. Leury; Minghao Zhang; Aleena Joy; Richard Osei-Amponsah; Surinder S. Chauhan

doi:10.1016/j.meatsci.2021.108466

Effect of slaughter age and post-mortem days on meat quality of longissimus and semimembranosus muscles of Boer goats

Archana Abhijith, Robyn D. Warner, Minh Ha, Frank R. Dunshea, Brian J. Leury, Minghao Zhang, Aleena Joy, Richard Osei-Amponsah, Surinder S. Chauhan

Department of Animal Science

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

This study investigated the effects of age of animal and days post-mortem (PM) on meat quality of Boer goats. Twenty-four (24) wether Boer goats of two age groups (2YO group: 2 years old and 9MO: 6–9 months, with 12 animals/group) were slaughtered in a commercial processing plant. The pH@Temp18 was estimated to be above 6 in both age groups with higher (P < 0.01) values in 2YO goats. The PM storage for 14 days reduced the shear force in both age groups (P < 0.01). 2YO goat muscles (longissimus and semimembranosus) exhibited higher (P < 0.01) Thiobarbituric acid reactive substance values (TBARS), indicating increased lipid oxidation. Glycogen (P < 0.01) and lactate content (20 min post-slaughter) in longissimus of 9MO were lower compared to 2YO, and total muscle glycogen concentration was lower (P < 0.01) in both age groups below the threshold levels. Hence, as hypothesized, age and days PM proved to play crucial roles on Boer meat quality.

Original language	English
Article number	108466
Journal	Meat Science
Volume	175
DOIs	https://doi.org/10.1016/j.meatsci.2021.108466
Publication status	Published - May 2021

Keywords

Lipid oxidation
Retail meat quality
TBARS
Total glycogen
pH decline

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10.1016/j.meatsci.2021.108466

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title = "Effect of slaughter age and post-mortem days on meat quality of longissimus and semimembranosus muscles of Boer goats",

abstract = "This study investigated the effects of age of animal and days post-mortem (PM) on meat quality of Boer goats. Twenty-four (24) wether Boer goats of two age groups (2YO group: 2 years old and 9MO: 6–9 months, with 12 animals/group) were slaughtered in a commercial processing plant. The pH@Temp18 was estimated to be above 6 in both age groups with higher (P < 0.01) values in 2YO goats. The PM storage for 14 days reduced the shear force in both age groups (P < 0.01). 2YO goat muscles (longissimus and semimembranosus) exhibited higher (P < 0.01) Thiobarbituric acid reactive substance values (TBARS), indicating increased lipid oxidation. Glycogen (P < 0.01) and lactate content (20 min post-slaughter) in longissimus of 9MO were lower compared to 2YO, and total muscle glycogen concentration was lower (P < 0.01) in both age groups below the threshold levels. Hence, as hypothesized, age and days PM proved to play crucial roles on Boer meat quality.",

keywords = "Lipid oxidation, Retail meat quality, TBARS, Total glycogen, pH decline",

author = "Archana Abhijith and Warner, {Robyn D.} and Minh Ha and Dunshea, {Frank R.} and Leury, {Brian J.} and Minghao Zhang and Aleena Joy and Richard Osei-Amponsah and Chauhan, {Surinder S.}",

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doi = "10.1016/j.meatsci.2021.108466",

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T1 - Effect of slaughter age and post-mortem days on meat quality of longissimus and semimembranosus muscles of Boer goats

AU - Abhijith, Archana

AU - Warner, Robyn D.

AU - Ha, Minh

AU - Dunshea, Frank R.

AU - Leury, Brian J.

AU - Zhang, Minghao

AU - Joy, Aleena

AU - Osei-Amponsah, Richard

AU - Chauhan, Surinder S.

PY - 2021/5

Y1 - 2021/5

N2 - This study investigated the effects of age of animal and days post-mortem (PM) on meat quality of Boer goats. Twenty-four (24) wether Boer goats of two age groups (2YO group: 2 years old and 9MO: 6–9 months, with 12 animals/group) were slaughtered in a commercial processing plant. The pH@Temp18 was estimated to be above 6 in both age groups with higher (P < 0.01) values in 2YO goats. The PM storage for 14 days reduced the shear force in both age groups (P < 0.01). 2YO goat muscles (longissimus and semimembranosus) exhibited higher (P < 0.01) Thiobarbituric acid reactive substance values (TBARS), indicating increased lipid oxidation. Glycogen (P < 0.01) and lactate content (20 min post-slaughter) in longissimus of 9MO were lower compared to 2YO, and total muscle glycogen concentration was lower (P < 0.01) in both age groups below the threshold levels. Hence, as hypothesized, age and days PM proved to play crucial roles on Boer meat quality.

AB - This study investigated the effects of age of animal and days post-mortem (PM) on meat quality of Boer goats. Twenty-four (24) wether Boer goats of two age groups (2YO group: 2 years old and 9MO: 6–9 months, with 12 animals/group) were slaughtered in a commercial processing plant. The pH@Temp18 was estimated to be above 6 in both age groups with higher (P < 0.01) values in 2YO goats. The PM storage for 14 days reduced the shear force in both age groups (P < 0.01). 2YO goat muscles (longissimus and semimembranosus) exhibited higher (P < 0.01) Thiobarbituric acid reactive substance values (TBARS), indicating increased lipid oxidation. Glycogen (P < 0.01) and lactate content (20 min post-slaughter) in longissimus of 9MO were lower compared to 2YO, and total muscle glycogen concentration was lower (P < 0.01) in both age groups below the threshold levels. Hence, as hypothesized, age and days PM proved to play crucial roles on Boer meat quality.

KW - Lipid oxidation

KW - Retail meat quality

KW - TBARS

KW - Total glycogen

KW - pH decline

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Effect of slaughter age and post-mortem days on meat quality of longissimus and semimembranosus muscles of Boer goats

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Keywords

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