Cargando…
Influence of pre-slaughter fasting time on weight loss, meat quality and carcass contamination in broilers
OBJECTIVE: An experiment was conducted to determine the appropriate fasting time prior to slaughter for broilers in floor-feed and scatter-feed mode. METHODS: On 21 d since hatching, 120 Arbor Acres broilers were divided into floor-feed and scatter-feed groups, chicks from each group were further as...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Animal Bioscience
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8100496/ https://www.ncbi.nlm.nih.gov/pubmed/33171031 http://dx.doi.org/10.5713/ajas.20.0560 |
_version_ | 1783688803111665664 |
---|---|
author | Xue, Ge Cheng, Silu Yin, Jingwen Zhang, Runxiang Su, Yingying Li, Xiang Li, Jianhong Bao, Jun |
author_facet | Xue, Ge Cheng, Silu Yin, Jingwen Zhang, Runxiang Su, Yingying Li, Xiang Li, Jianhong Bao, Jun |
author_sort | Xue, Ge |
collection | PubMed |
description | OBJECTIVE: An experiment was conducted to determine the appropriate fasting time prior to slaughter for broilers in floor-feed and scatter-feed mode. METHODS: On 21 d since hatching, 120 Arbor Acres broilers were divided into floor-feed and scatter-feed groups, chicks from each group were further assigned to feed withdrawal treatments for 0, 4, 6, 8, and 10 h. Some resultant indicators such as carcass contamination, body weight loss, meat quality of 54-day-old broilers were measured. RESULTS: It appears that longer feed withdrawal increased weight loss, lightness, drop loss of meat but reduced pH. A significant higher weight loss and lightness for both floor-feed and scatter-feed chicks coincided after 6 to 10 h feed withdrawal (p<0.05). pH for breast muscle at 45 min postmortem reduced when chicks of scatter-feed were fasted 6 and 10 h, while the reduction of floor-feed group occurred only in 10 h (p<0.05). A noticeable effect of feed withdrawal on drop loss occurred after 10 h fasting in scatter-feed of which drop loss were significantly higher than that for other groups including control (p<0.05). The change of contamination propensity revealed that 6 to 10 h fasting significantly reduced the likelihood of carcass contamination under both floor-feed and scatter-feed (p<0.05). Net weights of intestinal contents for gizzard were significantly reduced after feed deprived for 10 h in floor-feed and 6 and 10 h in scatter-feed (p<0.05). The decrease for whole intestine occurred after floor-feed broilers have been without feed for more than 4 h, scatter-feed broilers for more than 8 h (p<0.05). CONCLUSION: On the premise that poultry product properties and welfare were not significantly damaged, proper fasting time could reduce carcass contamination. Current data implied that 6 h fasting was recommendable for both floor and scatter feed pre-slaughter broilers. |
format | Online Article Text |
id | pubmed-8100496 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Animal Bioscience |
record_format | MEDLINE/PubMed |
spelling | pubmed-81004962021-06-01 Influence of pre-slaughter fasting time on weight loss, meat quality and carcass contamination in broilers Xue, Ge Cheng, Silu Yin, Jingwen Zhang, Runxiang Su, Yingying Li, Xiang Li, Jianhong Bao, Jun Anim Biosci Article OBJECTIVE: An experiment was conducted to determine the appropriate fasting time prior to slaughter for broilers in floor-feed and scatter-feed mode. METHODS: On 21 d since hatching, 120 Arbor Acres broilers were divided into floor-feed and scatter-feed groups, chicks from each group were further assigned to feed withdrawal treatments for 0, 4, 6, 8, and 10 h. Some resultant indicators such as carcass contamination, body weight loss, meat quality of 54-day-old broilers were measured. RESULTS: It appears that longer feed withdrawal increased weight loss, lightness, drop loss of meat but reduced pH. A significant higher weight loss and lightness for both floor-feed and scatter-feed chicks coincided after 6 to 10 h feed withdrawal (p<0.05). pH for breast muscle at 45 min postmortem reduced when chicks of scatter-feed were fasted 6 and 10 h, while the reduction of floor-feed group occurred only in 10 h (p<0.05). A noticeable effect of feed withdrawal on drop loss occurred after 10 h fasting in scatter-feed of which drop loss were significantly higher than that for other groups including control (p<0.05). The change of contamination propensity revealed that 6 to 10 h fasting significantly reduced the likelihood of carcass contamination under both floor-feed and scatter-feed (p<0.05). Net weights of intestinal contents for gizzard were significantly reduced after feed deprived for 10 h in floor-feed and 6 and 10 h in scatter-feed (p<0.05). The decrease for whole intestine occurred after floor-feed broilers have been without feed for more than 4 h, scatter-feed broilers for more than 8 h (p<0.05). CONCLUSION: On the premise that poultry product properties and welfare were not significantly damaged, proper fasting time could reduce carcass contamination. Current data implied that 6 h fasting was recommendable for both floor and scatter feed pre-slaughter broilers. Animal Bioscience 2021-06 2020-11-03 /pmc/articles/PMC8100496/ /pubmed/33171031 http://dx.doi.org/10.5713/ajas.20.0560 Text en Copyright © 2021 by Animal Bioscience https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Article Xue, Ge Cheng, Silu Yin, Jingwen Zhang, Runxiang Su, Yingying Li, Xiang Li, Jianhong Bao, Jun Influence of pre-slaughter fasting time on weight loss, meat quality and carcass contamination in broilers |
title | Influence of pre-slaughter fasting time on weight loss, meat quality and carcass contamination in broilers |
title_full | Influence of pre-slaughter fasting time on weight loss, meat quality and carcass contamination in broilers |
title_fullStr | Influence of pre-slaughter fasting time on weight loss, meat quality and carcass contamination in broilers |
title_full_unstemmed | Influence of pre-slaughter fasting time on weight loss, meat quality and carcass contamination in broilers |
title_short | Influence of pre-slaughter fasting time on weight loss, meat quality and carcass contamination in broilers |
title_sort | influence of pre-slaughter fasting time on weight loss, meat quality and carcass contamination in broilers |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8100496/ https://www.ncbi.nlm.nih.gov/pubmed/33171031 http://dx.doi.org/10.5713/ajas.20.0560 |
work_keys_str_mv | AT xuege influenceofpreslaughterfastingtimeonweightlossmeatqualityandcarcasscontaminationinbroilers AT chengsilu influenceofpreslaughterfastingtimeonweightlossmeatqualityandcarcasscontaminationinbroilers AT yinjingwen influenceofpreslaughterfastingtimeonweightlossmeatqualityandcarcasscontaminationinbroilers AT zhangrunxiang influenceofpreslaughterfastingtimeonweightlossmeatqualityandcarcasscontaminationinbroilers AT suyingying influenceofpreslaughterfastingtimeonweightlossmeatqualityandcarcasscontaminationinbroilers AT lixiang influenceofpreslaughterfastingtimeonweightlossmeatqualityandcarcasscontaminationinbroilers AT lijianhong influenceofpreslaughterfastingtimeonweightlossmeatqualityandcarcasscontaminationinbroilers AT baojun influenceofpreslaughterfastingtimeonweightlossmeatqualityandcarcasscontaminationinbroilers |