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Table 2.

Fatty acid composition (%) of two experimental diets and waxwormsGalleria mellonella that were eaten by red-eyed vireos Vireo olivaceous

Fatty acid compositiona
Fatty acidsb58%U dietc82%U dietdWaxwormse
10:0 3.8 3.6 – 
14:0 1.3 – 0.4 
16:0 33.2 10.9 28.4 
16:1n7 <1 <1 1.3 
18:0 3.6 3.3 1.9 
18:1n9 28.6 72.2 48.0 
18:1n7 <1 1.9 0.1 
18:2n6 29.5 8.1 10.7 
18:3n6 – – 1.5 
20:1n9 – – 6.1 
Fatty acid compositiona
Fatty acidsb58%U dietc82%U dietdWaxwormse
10:0 3.8 3.6 – 
14:0 1.3 – 0.4 
16:0 33.2 10.9 28.4 
16:1n7 <1 <1 1.3 
18:0 3.6 3.3 1.9 
18:1n9 28.6 72.2 48.0 
18:1n7 <1 1.9 0.1 
18:2n6 29.5 8.1 10.7 
18:3n6 – – 1.5 
20:1n9 – – 6.1 

Both diets were similar in nutrient composition (41% carbohydrate, 13%protein, 30% fat; see Table 1).

a

Fatty acid composition was directly measured using gas chromatography

b

Other fatty acids found in <1% of the lipid portion of the diet(s) were 8:0, 12:0, 18:3n3, 20:4n6 and 22:6n3

c

Lipid in 58%U diet was equal amounts of cottonseed oil (ICN Biomedicals,Inc., Irvine, CA, USA) and palm oil (Tuscan Sun brand from Sid Wainer, Inc.,New Bedford, MA, USA)

d

Lipid in 82%U diet was Rienzi-brand olive oil

e

Waxworm caterpillars (Grubco, Hamilton, OH, USA)

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