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EC number: 265-232-9 | CAS number: 64771-71-7 A combination of normal paraffins having carbon numbers predominantly greater than C10 obtained by urea adduction or molecular sieve processes.
Table 1. Weights of whole bodies and organs of adult Mallard ducks after 26 weeks on diet contaminated with paraffin mixture
Body weight (g)
Organ weights (g/1000g body weight)
1339 ± 66.8
22.1 ± 0.86
0.49 ± 0.04
26.0 ± 4.16
1274 ± 26.3
41.5 ± 3.5
0.66 ± 0.06
16.6 ± 4.86
1268 ± 69.8
21.7 ± 0.91
0.47 ± 0.05
24.3 ± 4.09
1186 ± 40.9
0.56 ± 0.06
25.2 ± 5.2
Table 2. Egg production in adult Mallard ducks after 26 weeks on diet contaminated with paraffin mixture
Number of total eggs laid
Number of Eggs laid / hen
Number of Eggs laid / hen / week
Adult Mallard ducks were exposed to diet contaminated with 1.0% paraffin mixture (equal parts of tridecane, pentadecane, hexadecane, heptadecane, octadecane, nonadecane, 2,2,4,6,6-pentamethylheptane, 2,2,4,4,6,8,8-heptamethylnonane, and decahydronaphthalene) for 26 weeks. No statistical differences were seen between treated and control duck body weight, organ (liver, kidney, spleen) weights, blood parameters (hematocrit, hemoglobin, plasma sodium, potassium, cholesterol and triglycerides, plasma enzyme activities glutamic oxalacetic transaminase - GOT, lactated deshydrogenase - LDH, alpha-hydroxybutiric acid dehydrogenase - HBDH, and orinithine carbamyl transferase - OCT). The exposure had no effect on the number of laid eggs, neither on eggshell thickness, fertility and egg viability.
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