Fatty acid composition of broiler abdominal fat as influenced by temperature, diet, age and sex
- 1 September 1988
- journal article
- research article
- Published by Informa UK Limited in British Poultry Science
- Vol. 29 (3), 589-595
- https://doi.org/10.1080/00071668808417085
Abstract
1. Two environmentally controlled houses at 21°‐30°‐21°C (HT) and 21°C (LT) were used to study the effect of temperature on fatty acid composition of the abdominal fat of male and female broilers fed 13.8 and 13 MJ ME/kg diets and slaughtered at 34 and 54 d. 2. Extracts from the abdominal fat of 160 carcases and of the experimental foods were analysed for fatty acids by gas liquid chromatography. 3. Birds reared in HT had a significantly lower proportion of polyun‐saturated fatty acids (PUFA) in their abdominal fat between 34 and 54 d than birds in LT. The depot fat contents of oleic, linoleic and linolenic acids were all reduced by HT at 54 d. 4. For broilers slaughtered at 54 d, saturated fatty acid (SFA) content was much higher in females at high temperatures than in males while at low temperatures PUFA, especially linoleic, was much lower in males than in females. 5. Early finishing of broilers is advantageous from the viewpoint of fatty acid composition because the PUFA/SFA ratio declines significantly with age regardless of temperature.This publication has 14 references indexed in Scilit:
- Effects of Increasing Dietary Levels of Full-Fat Canola on Performance, Nutrient Retention, and Bone MineralizationPoultry Science, 1987
- Effects of Light Source, Ambient Temperature, and Dietary Energy Source on the General Performance and Incidence of Leg Abnormalities of Roaster ChickensPoultry Science, 1987
- Combined Effect of Age and Ambient Temperature on the Comparative Growth of Broiler Chicks Fed Tallow and Soybean OilPoultry Science, 1987
- Apparent metabolisable energy values of fats for broiler chicksBritish Poultry Science, 1986
- Energy Utilization by the Broiler Chicken as Affected by Various Fats and Fat LevelsPoultry Science, 1985
- Effect of dietary amino acids and metabolisable energy on the performance of broilers kept at high temperaturesBritish Poultry Science, 1984
- The effects of temperature on broilers: Interactions between temperature and feeding regimeBritish Poultry Science, 1981
- Effect of Diet Composition on Feed Intake and Growth of Chicks Under Heat StressPoultry Science, 1980
- Fat Utilization in Relation to Intestinal Fatty Acid Binding Protein and Bile Salts in Chicks of Different Ages and Different Genetic SourcesPoultry Science, 1980
- Carcass Composition StudiesPoultry Science, 1975