UPM Institutional Repository

Dietary selection of fat by heat-stressed broiler chickens


Idrus, Zulkifli and Htwe, Nwe Nwe and Alimon, Abdul Razak and Loh, Teck Chwen and Bejo, Mohd Hair (2007) Dietary selection of fat by heat-stressed broiler chickens. Asian-Australasian Journal of Animal Sciences, 20 (2). pp. 245-251. ISSN 1011-2367; ESSN: 1976-5517


A total of 160 d-old male broiler chicks (Cobb) were brooded for three weeks and then maintained at 24±1°C. Commencing from d 21, chicks were assigned to one of four feeding regimens: (1) diet with 8% palm oil (PO), (2) diet with 8% soybean oil (SO), (3) diet without added fat (control), (4) a choice of PO, SO and control (CH). The diets were formulated to maintain a constant ratio of energy and protein. From d 28 to 41, all birds were exposed to 34±1°C. The PO, SO and CH birds had greater body weight than controls on d 42. The PO but not SO diet reduced mortality rate, body temperature and serum creatine kinase level of broiler chickens during heat exposure. Although the total intake of control, PO and SO diets was not significantly different during heat exposure, the CH birds had lower creatine kinase activity and mortality rate than those provided SO diet but not significantly different from the birds fed control and PO diets. The relative abdominal fat weight and breast intramuscular fat content percentage were significantly lower in the control birds than those of PO, SO and CH groups. There were no significant differences in both parameters among the three latter groups. These findings suggest that the uncertainty of how much dietary fat to put into diets for heat stressed broilers can be overcome by allowing them to select their own consumption.

Download File

PDF (Abstract)
Dietary selection of fat by heat-stressed broiler chickens.pdf

Download (34kB) | Preview
Official URL or Download Paper: http://www.ajas.info/journal/view.php?number=21508

Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Faculty of Veterinary Medicine
DOI Number: https://doi.org/10.5713/ajas.2007.245
Publisher: Asian-Australasian Association of Animal Production Societies
Keywords: Broiler chickens; Dietary fat; Dietary selection; Heat stress
Depositing User: Nabilah Mustapa
Date Deposited: 01 Feb 2017 04:37
Last Modified: 01 Feb 2017 04:37
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.5713/ajas.2007.245
URI: http://psasir.upm.edu.my/id/eprint/50080
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item