Efficacy as a growth promoter of Tulsi leaves extract in broiler production with carcass characteristics and hematological profile

Abstract

This experiment was conducted to investigate the efficacy of tulsi leaves (Ocimum sanctum) extract supplementation in drinking water as a growth promoter in broiler chickens. A total No. of 30 day old Cobb-500 broiler chicks was purchased from local hatchery and after seven days of acclimatization chicks were randomly divided into two groups A and B in equal number. The group A was kept as a control and not treated. The group B was supplemented with tulsi leaves extract with feed and water. Weekly observations were recorded for live body weight gain up to 30 days and hematological tests were performed at 30th day’s age of broiler to evaluate the hematological changes between two groups. The initial body weight of groups A and B on 1st day of this experiment were 42.80±10.31 gm and 42.68±6.90 gm respectively and after 30th days of experiment final body weight were 1530± 33.07 gm and 1600± 44.80 gm respectively; the net body weight gain from 7th day were 1488±41.12 gm and 1551±39.29 gm respectively and economics of production was analyzed and found that net profit per broiler was Tk. 24.51 and Tk. 32.50 respectively. The treatment group B was reported statistically significant (at 1% level) increased 16.43% for live body weight than the control group A. The hematological parameters TEC, ESR and PCV value of treatment group showed significant difference, while Hemoglobin (Hb) estimation did not show significant difference from control group. Therefore, the findings of the study results suggest that supplemented with tulsi leaves extract with feed and water can improve the growth performance of broiler.

Utjecaj fitobiotičkog svetog bosiljka (Ocimum sanctum) na proizvodnju i zdravlje tovnih pilića

“…Likewise, insignificant differences have been detected in hot carcass and liver weights, and in the dressing percentage after treatment with tulsi leaf powder (0.5%) and tulsi leaf extract (0.1%), while intestinal length was longer in treated groups than in nontreated ones (Vasanthakumar et al, 2013) Mixing tulsi leaf extract in drinking water of Cobb broilers significantly increased body weight by 16.97% when compared to the control non-treated broilers (Hasan et al, 2016). Similarly, supplementation with tulsi leaves extract in feed and water resulting in a significant increase (16.43%) in the live body weight compared to the control non-treated group (Islam et al, 2021). In the presence of a bacterial disease condition such as colibacillosis, feeding on tulsi leaf powder at a level of 5g/kg feed resulting in increased body weight gain (Kumara, 2012).…”

“…Reports indicated that supplementation with tulsi in optimum doses results in an augmentation of performance and biochemical blood parameters, as well as improvement of economic traits and digestibility (Bhosale et al, 2015;Shende et al, 2019Shende et al, , 2020aShende et al, ,b, 2021Naeem et al, 2022). From the economic perspective, the report of Islam et al (2021) proved that the dietary addition of tulsi leaf extract for broilers may be useful for safe, economical, and efficient production, while also reducing production costs via reducing the use of antibiotics or vaccines. In addition, Vasanthakumar et al (2013) revealed that the feed cost per unit weight gain was higher in groups receiving the tulsi extract.…”