Influence of dietary inorganic and organic copper salt and level of soybean oil on plasma lipids, metabolites and mineral balance of broiler chickens

At present, there is limited knowledge about the possible utilization of the fat fraction derived from Hermetia illucens (HI) larvae processing. The objective of the present study was to evaluate the replacement of soybean oil with HI larvae fat in broiler finisher diet, on the quality and sensory traits of their meat. At 21 days of age, 120 male broiler chickens were randomly allocated to three experimental groups (5 replicates and 8 birds/pen): a basal control diet (C), and two groups in which either 50% or 100% of the soybean oil was replaced with HI larvae fat (the HI50 and HI100 group, respectively). At day 48, 15 birds (3 birds/pen) per group were slaughtered, and breasts and legs were excised and used for meat quality evaluations. Breast and leg physical meat quality, nutritional composition and sensory profile remained substantially unaffected by the dietary treatments. In contrast, the dietary incorporation of HI larvae fat modified the fatty acid (FA) profile of both the breast and leg meat cuts: the proportion of saturated fatty acids increased (p < 0.0001) to the detriment of the polyunsaturated (PUFA) fraction (p < 0.0001). Moreover, the meat n-6/n-3 ratio increased in the HI50 and HI100 groups compared to the C group. HI larvae fat dietary inclusion decreased the monounsaturated fatty acids in the breast (p = 0.0012) but not in the leg meat. Further research should focus on the improvement of the FA profile of the larvae through substrate modulation, or by combining HI larvae with a PUFA-rich feedstuff in feed formulations.

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Predicted Changes in Fatty Acid Intakes, Plasma Lipids, and Cardiovascular Disease Risk Following Replacement of trans Fatty Acid-Containing Soybean Oil with Application-Appropriate Alternatives

Lipids ◽

10.1007/s11745-012-3705-y ◽

2012 ◽

Vol 47 (10) ◽

pp. 951-962 ◽

Cited By ~ 14

Author(s):

Michael Lefevre ◽

Ronald P. Mensink ◽

Penny M. Kris-Etherton ◽

Barbara Petersen ◽

Kim Smith ◽

...

Keyword(s):

Cardiovascular Disease ◽

Fatty Acid ◽

Soybean Oil ◽

Trans Fatty Acid ◽

Plasma Lipids ◽

Disease Risk ◽

Cardiovascular Disease Risk

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Influence of cereal type and fat source on the performance and fat utilisation of broiler starters

Animal Production Science ◽

10.1071/an13375 ◽

2015 ◽

Vol 55 (1) ◽

pp. 74 ◽

Cited By ~ 2

Author(s):

P. Tancharoenrat ◽

V. Ravindran ◽

G. Ravindran

Keyword(s):

Weight Gain ◽

Experimental Design ◽

Soybean Oil ◽

Broiler Chickens ◽

Experimental Period ◽

Apparent Digestibility

An experiment was conducted to determine the influence of cereal type and fat source on performance and utilisation of fat in young broiler chickens. The experimental design was a 3 × 2 factorial arrangement of treatments, which included three cereals (wheat, maize or sorghum) and two fat sources (soybean oil or tallow). Broiler starter diets, based on each cereal and supplemented with 60 g/kg of soybean oil or tallow, were fed during the 21-day experimental period. Weight gain was increased (P < 0.05) with soybean oil supplementation compared with tallow supplementation in wheat- and maize-based diets, but was unaffected (P > 0.05) by fat source in sorghum-based diets. Feed per gain was lower (P < 0.05) in birds fed soybean oil diets than those fed tallow-supplemented diets. Coefficients of total tract retention and ileal apparent digestibility of fat were higher (P < 0.05) in birds fed soybean oil diets than in those fed tallow-supplemented diets. Overall, the results suggest that the effect of fat source on weight gain of broiler starters differed depending on the cereal base used, and that soybean oil is a better fat source than tallow for young broilers.

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