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To study the influence of licorice (Glycyrrhiza glabra) extracts on broiler performance, carcass quality parameters and blood
profile in broiler. One hundred eighty, day-old broiler chicks were divided in eighteen experimental units (ten chicks each).
Six treatments, namely positive control, Feed +Antibiotic (T1), negative control (T2) i.e., basal diet without antibiotic growth
promoter, Feed +Licorice Extract 10ml/L (T3), Feed +Licorice Extract 15ml/L (T4), Feed +Licorice Extract 20ml/L (T5) and
Feed +Licorice Extract 25ml/L (T6) were basal diet along-with water supplemented with licorice root extract @ 10, 15, 20 and
25 ml/L, respectively. Weekly body weight, feed consumption and mortality (if any) was recorded while feed conversion ratios
were calculated for starter, finisher and overall duration. At the completion of trial, one bird/replicate was randomly selected
and slaughtered for estimation of carcass parameters. Blood samples were also collected for hemoglobin, hematocrit and
serum analysis at the end of study. Data were analyzed with SAS software using general linear model procedure and to compare
means Tukey’s test was used. A significant increasing trend for feed intake (3428.50), weight gain (2039.34), breast meat yield
(279.16), and dressing percentage (58.16) was witnessed with increasing level of licorice root extract compared with controls.
Decreasing trend for feed conversion ratio (1.68) and hematocrit (29.34) was observed with increasing licorice root extract.
Hemoglobin (14.93) increased with increasing licorice extract but decreased significantly (11.90) at 25 ml/L extract level. It
may be concluded that use of licorice root aqueous extract administered in drinking water showed favorable effect on growth
and carcass yield in broilers.
Hafiz Furqan Iqbal, Muhammad Khalid Bashir, Muhammad Zafar Iqbal, Shahid-urRehman, Muhammad Ashraf, Muhammad Qamar Bilal, M. Usman, Bahar-e-Mustafa. (2020) EFFECT OF LICORICE (Glycyrrhiza glabra) EXTRACT ON GROWTH PERFORMANCE, CARCASS PARAMETERS AND HEMATOLOGY OF BROILERS, Pakistan Journal of Agricultural Sciences, Volume 57, Issue 2.
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