Different slaughtering techniques and possible physiological and biomolecular effects

The aim of the study was to identify possible physiological and biomolecular changes during slaughtering. For slaughtering, before the neck cutting, chickens are immobilized manually or immobilized using shackles. Neck cutting is generally performed using automated knife, often results in decapita...

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Main Authors:	Zaman, Rahela, Shahdan, Intan Azura, Idid, Syed Zahir, Nafiu, Abdulrazaq Bidemi, Rahman, Mohammad Tariqur
Format:	Article
Language:	English English
Published:	Malaysian Society of Applied Biology 2017
Subjects:	Q Science (General) S Agriculture (General)
Online Access:	http://irep.iium.edu.my/62265/ http://irep.iium.edu.my/62265/ http://irep.iium.edu.my/62265/12/62265_Different%20slaughtering%20techniques%20and%20possible%20physiological_complete.pdf http://irep.iium.edu.my/62265/7/62265_Different%C2%A0slaughtering%C2%A0techniques_scopus.pdf

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spelling	iium-622652018-05-17T02:03:40Z http://irep.iium.edu.my/62265/ Different slaughtering techniques and possible physiological and biomolecular effects Zaman, Rahela Shahdan, Intan Azura Idid, Syed Zahir Nafiu, Abdulrazaq Bidemi Rahman, Mohammad Tariqur Q Science (General) S Agriculture (General) The aim of the study was to identify possible physiological and biomolecular changes during slaughtering. For slaughtering, before the neck cutting, chickens are immobilized manually or immobilized using shackles. Neck cutting is generally performed using automated knife, often results in decapitation. Both of these immobilization and neck cutting conditions are expected to influence muscle contraction and blood loss. We have investigated the activity and transcription of acetylcholinesterase (AChE) which terminates cholinergic synaptic transmission by hydrolysing the neurotransmitter acetylcholine that is responsible for muscle contraction and relaxation. We have also analysed the residual haemoglobin content of the skeletal muscle as indicator of blood loss. Skeletal muscle sample was collected from the chickens that were slaughtered either by decapitation (C) or by severance of the jugular veins, carotid arteries, oesophagus and trachea only (P); whilst immediately after slaughtering, chickens were either released (R) or manually constrained (T). Differences in the conditions of slaughtering: CR, PR or PT did not affect blood loss as measured by the residual Hb content and the amount of Zn and Fe either in muscle or liver, deducing no significant difference (p>0.05) in blood loss due to different type of slaughtering. No significant differences (p>0.05) were observed in AChE activity in muscles taken from all slaughter groups. However, AChE transcripts were detected in muscles from chickens from PT and CR groups which might be due to the decapitation and/or constrained muscular activity after neck cutting. Hence the results of the current study indicate that, constraining during slaughtering and decapitation might induce stress to the animals. Malaysian Society of Applied Biology 2017-12-31 Article PeerReviewed application/pdf en http://irep.iium.edu.my/62265/12/62265_Different%20slaughtering%20techniques%20and%20possible%20physiological_complete.pdf application/pdf en http://irep.iium.edu.my/62265/7/62265_Different%C2%A0slaughtering%C2%A0techniques_scopus.pdf Zaman, Rahela and Shahdan, Intan Azura and Idid, Syed Zahir and Nafiu, Abdulrazaq Bidemi and Rahman, Mohammad Tariqur (2017) Different slaughtering techniques and possible physiological and biomolecular effects. Malaysian Applied Biology, 46 (4). pp. 103-109. ISSN 0126-8643 http://mabjournal.com/
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	Q Science (General) S Agriculture (General)
spellingShingle	Q Science (General) S Agriculture (General) Zaman, Rahela Shahdan, Intan Azura Idid, Syed Zahir Nafiu, Abdulrazaq Bidemi Rahman, Mohammad Tariqur Different slaughtering techniques and possible physiological and biomolecular effects
description	The aim of the study was to identify possible physiological and biomolecular changes during slaughtering. For slaughtering, before the neck cutting, chickens are immobilized manually or immobilized using shackles. Neck cutting is generally performed using automated knife, often results in decapitation. Both of these immobilization and neck cutting conditions are expected to influence muscle contraction and blood loss. We have investigated the activity and transcription of acetylcholinesterase (AChE) which terminates cholinergic synaptic transmission by hydrolysing the neurotransmitter acetylcholine that is responsible for muscle contraction and relaxation. We have also analysed the residual haemoglobin content of the skeletal muscle as indicator of blood loss. Skeletal muscle sample was collected from the chickens that were slaughtered either by decapitation (C) or by severance of the jugular veins, carotid arteries, oesophagus and trachea only (P); whilst immediately after slaughtering, chickens were either released (R) or manually constrained (T). Differences in the conditions of slaughtering: CR, PR or PT did not affect blood loss as measured by the residual Hb content and the amount of Zn and Fe either in muscle or liver, deducing no significant difference (p>0.05) in blood loss due to different type of slaughtering. No significant differences (p>0.05) were observed in AChE activity in muscles taken from all slaughter groups. However, AChE transcripts were detected in muscles from chickens from PT and CR groups which might be due to the decapitation and/or constrained muscular activity after neck cutting. Hence the results of the current study indicate that, constraining during slaughtering and decapitation might induce stress to the animals.
format	Article
author	Zaman, Rahela Shahdan, Intan Azura Idid, Syed Zahir Nafiu, Abdulrazaq Bidemi Rahman, Mohammad Tariqur
author_facet	Zaman, Rahela Shahdan, Intan Azura Idid, Syed Zahir Nafiu, Abdulrazaq Bidemi Rahman, Mohammad Tariqur
author_sort	Zaman, Rahela
title	Different slaughtering techniques and possible physiological and biomolecular effects
title_short	Different slaughtering techniques and possible physiological and biomolecular effects
title_full	Different slaughtering techniques and possible physiological and biomolecular effects
title_fullStr	Different slaughtering techniques and possible physiological and biomolecular effects
title_full_unstemmed	Different slaughtering techniques and possible physiological and biomolecular effects
title_sort	different slaughtering techniques and possible physiological and biomolecular effects
publisher	Malaysian Society of Applied Biology
publishDate	2017
url	http://irep.iium.edu.my/62265/ http://irep.iium.edu.my/62265/ http://irep.iium.edu.my/62265/12/62265_Different%20slaughtering%20techniques%20and%20possible%20physiological_complete.pdf http://irep.iium.edu.my/62265/7/62265_Different%C2%A0slaughtering%C2%A0techniques_scopus.pdf
first_indexed	2023-09-18T21:28:16Z
last_indexed	2023-09-18T21:28:16Z
_version_	1777412338456985600

Different slaughtering techniques and possible physiological and biomolecular effects

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