Investigation the effects using different levels of Mentha pulegium L.(pennyroyal) in comparison with an antibiotic growth promoter on performance, carcass traits and …
Asian Pacific Journal of Tropical Biomedicine, 2012•Elsevier
Abstract Objective The trial involved 240 Ross 308 broiler chicks in order to investigate the
effects of Mentha pulegium L.(pennyroyal) on performance, carcass traits and immune
responses in broiler chickens. Methods Birds were assigned to 4 treatments: control feed,
antibiotic group receiving 4.5 mg/kg flavophospholipol, and 5 and 10 g/kg pennyroyal
powder added to the basal diet. Body weights of broilers were determined at d 1, 14, 28 and
42, feed intake was determined at the same periods, and feed conversion ratio was …
effects of Mentha pulegium L.(pennyroyal) on performance, carcass traits and immune
responses in broiler chickens. Methods Birds were assigned to 4 treatments: control feed,
antibiotic group receiving 4.5 mg/kg flavophospholipol, and 5 and 10 g/kg pennyroyal
powder added to the basal diet. Body weights of broilers were determined at d 1, 14, 28 and
42, feed intake was determined at the same periods, and feed conversion ratio was …
Objective
The trial involved 240 Ross 308 broiler chicks in order to investigate the effects of Mentha pulegium L. (pennyroyal) on performance, carcass traits and immune responses in broiler chickens.
Methods
Birds were assigned to 4 treatments: control feed, antibiotic group receiving 4.5 mg/kg flavophospholipol, and 5 and 10 g/kg pennyroyal powder added to the basal diet. Body weights of broilers were determined at d 1, 14, 28 and 42, feed intake was determined at the same periods, and feed conversion ratio was calculated accordingly. At day 42, two birds per replicate were slaughtered for the determination of carcass traits. Antibody titers against newcastle, influenza viruses and sheep red blood cell (SRBC) were determined.
Results
Performance, Internal organ weights and carcass characteristics were not significantly influenced by the dietary treatments at day 42. Humoral immune responses were not affected by dietary treatments.
Conclusions
In conclusion, the results of this study showed that addition of pennyroyal powder seem not to have a positive influence on growth performance of broiler chicks.
Elsevier
以上显示的是最相近的搜索结果。 查看全部搜索结果