Abstract

The study was conducted in the poultry field of the animal production department, college
of agriculture, Kirkuk university from the 30th of Sep 2021 to the 1st of Nov 2021. The
objective of the study was to evaluate the addition of L. Carnitine with Herbal methionine
and sunflower seeds to the broiler’s diet and its effect on their productivity. At age a day,
350 broilers (Ross308) with an average weight of 42 gm. They were raised on a sawdust
floor in a closed chamber with the use of 35 pen (dimension 190 x 90 cm), each chamber
was equipped with two air pullers. Chicks were randomly assigned to 8 treatments with 4
replicates for each treatment (10 chicks per replicate). The result of statistical analysis
showed that at 42 day of age the body weight of T 3, 4, 5, 6, 7, and 8 differed significantly
(P≤0.05) compared to T1 and T2. The average daily gain of treatment 6 was higher
significantly (P≤0.05) compared to treatments 3, 4, 5, 7, and 8. Also, treatments 3, 4, 5, 7,
and 8 were higher than the control and treatment 2. The feed consumption rate was
significantly lower in all treatments compared to the control, while T8 was higher than the
other experiment treatment. Also, it has been noticed that T4 was significantly lower in feed
consumption rate compared to treatments 1, 2, 3, 5, 6, and 7. The rate of feed conversion
was significantly improved in treatments 4 and 8 compared to the other treatment. The
abdominal fat was significantly lower in all treatments compared to treatments 1 and 2,
whereas the relative weight ratio of heart, liver, and gizzard did not differ between the
treatments. The carcass composition was significantly higher in treatments 6 and 8 compared
to the other treatments. There was no significant effect on the relative weight ratio of breast,
leg, wing, neck, back, and drumstick between the treatments