Abstract
In the present experiment, 320 one day old Ross 308 broiler chickens were used completely randomized design with 4 treatments, 4 replicates, and each replicate contained 20 broiler chickens. Experimental treatments include control, 0.5, 1, and 2% of Thymolina powder in chickens’ diet. Thymolina ® is an anti-bacterial powder drug which is made by composing 4 medicinal plants. A significant difference observed between treatments in each parameter of the Intestinal morphology (villus height, villus width, crypt depth and epithelial thickness). Goblet cells number was not affected. Our findings indicated that using Thymolina ® in the diet of broiler chickens causes improvements in carcass characteristics. Therefore, it may improve the carcass characteristics and morphology of small intestine in broiler chickens.
Highlights
Several studies indicate that phytogenic result in improving growth and weight gain (Jamroz et al, 2003; Hernández, Madrid, García, Orengo, & Megías, 2004; Cross, McDevitt, Hillman, & Acamovic, 2007), improving feed efficiency ratio (Ciftci et al, 2005), reducing Escherichia Coli bacteria and population growth of Lactobacillus (Jamroz et al, 2005), preventing
In the present study, an antibacterial medicinal plant feed additive called Thymolina® in powder form was used to find the effects on carcass characteristics and small intestin morphology
In the present experimental study, the cornwheat-soybean meal based diet was used to supply chickens’ nutritional needs in different periods [Starter (0-15 days), Grower (16-28 days), Finisher (29-42 days)], experimental diets were prepared and regulated based by the UFFDA software, and diets were formulized based on Ross 308 broiler chickens nutritional requirements (Table 2)
Summary
Due to having suitable effects on intestinal morphology and performances (JuglChizzola et al, 2006), antibacterial effects (Ozer et al, 2007), wide antioxidant activities (Wei & Shibamoto, 2007), stimulation of the immune system (Roth-Maier, Bohmer, Maass, Damme, & Pau-Licks, 2005) and improvement in nutrient absorption (Windisch, Schedle, Plitzner, & Kroismayr, 2008) are added to diets of broiler chickens.Several studies indicate that phytogenic result in improving growth and weight gain (Jamroz et al, 2003; Hernández, Madrid, García, Orengo, & Megías, 2004; Cross, McDevitt, Hillman, & Acamovic, 2007), improving feed efficiency ratio (Ciftci et al, 2005), reducing Escherichia Coli bacteria and population growth of Lactobacillus (Jamroz et al, 2005), preventingActa Scientiarum. Animal Sciences fat oxidative (Stoni, Zitterl-Egelseer, Kroismayr, Wetscherek, & Windisch, 2006), intestinal morphological characteristics (Garcia, Catala-Gregori, Hernandez, Megias, & Madrid, 2007), and antimicrobial activity (Farag, Badei, Hewedi, & ElBaroty, 1989). In the present study, an antibacterial medicinal plant feed additive called Thymolina® in powder form was used to find the effects on carcass characteristics and small intestin morphology. In making this drug, 4 medicinal plants Salvia officinalis, Matricaria chamomilla, Teucrium polium and Origanum majorana were composed
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