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Higher inclusion rate of canola meal under high ambient temperature for broiler chickens


Citation

Aljuobori, A. and Idrus, Zulkifli and Soleimani, Abdoreza Farjam and Abdullah, Norhani and Liang, Juan Boo and Mujahid, A. (2016) Higher inclusion rate of canola meal under high ambient temperature for broiler chickens. Poultry Science, 95 (6). pp. 1326-1331. ISSN 0032-5791; ESSN: 1525-3171

Abstract / Synopsis

Extruded canola meal (ECM) was included in diet of broiler chickens at 0, 10, 20, and 30% (wt/wt) from 1 to 35 days of age. A total of 240 day-old male chicks were assigned in groups of 5 to 48 battery cages in environmentally controlled chambers and diets were replicated with 12 cages/treatment. From d 29 to 35, birds from each dietary group were exposed to either thermoneutral (23 ± 1°C; unheated) or high (36 ± 1°C; heated) temperature conditions. High ambient temperature, irrespective of ECM inclusion, depressed the growth performance of birds. Inclusion of ECM increased feed conversion ratio (FCR) linearly in unheated birds during d 1 to 28 (P < 0.001) and d 29 to 35 (P = 0.001). However, no adverse effects of ECM inclusion were observed on the growth performance of heated birds. The absence of these detrimental effects could be associated with the lack of triiodothyronine (T3) elevation by ECM inclusion in heated birds. In conclusion, ECM can be fed, at least, up to 30%, without any adverse effect on growth performance of broiler chickens raised under chronic high ambient temperature.


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Additional Metadata

Item Type: Article
Subject: Broiler; Extruded canola meal; Heat stress; Triiodothyronine
Divisions: Institute of Tropical Agriculture
DOI Number: https://doi.org/10.3382/ps/pew023
Publisher: Poultry Science Association
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 16 Mar 2018 15:44
Last Modified: 16 Mar 2018 15:44
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3382/ps/pew023
URI: http://psasir.upm.edu.my/id/eprint/54439
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