Faba bean (Vicia fabavar.minor) as a protein source for organic chickens: performance and carcass characteristics

Effect of Faba BeanVicia FabaVar.Minor) Inclusion in Starter and Growing Diet on Performance, Carcass and Meat Characteristics of Organic Slow-Growing Chickens

“…The amounts of vicine and convicine in the F1 and F2 diets were, respectively 0.20%, 0.08% and 0.17%, 0.10% of dry matter. These values agree with those observed in our previous study (Perella et al, 2009). Laudadio et al (2011), replacing soybean with dehulledmicronized fava beans (310 g/kg) from 14 days to slaughter age (49 days), obtained values of vicine and convicine equal to 0.11% and 0.01%, respectively.…”

“…Daily feed intakes between groups were not significantly different in the considered periods; on the contrary, the daily weight gain and the feed efficiency of F birds was lower until 60 days of age while later on both groups showed similar values. The lower performance here recorded could be mainly attributed to the starter diets because previous results (Perella et al, 2009) showed that similar formulation with faba bean for growing period produced the same productive performance. This negative effect of the faba bean on performance could be ascribed to various reasons: lower level of some essential aminoacids (methionine plus cysteine, threonine and tryptophan) and the presence of vicine, convicine and tannins as anti-nutritional factors.…”

“…Some studies resulting in adverse effects on performance, and others resulting in growth performance similar to control diets at various inclusion level (Farell et al, 1999;Ravindran, 2002;Nalle et al, 2010). In our previous study (Perella et al, 2009) we demonstrated the effectiveness of the faba bean inclusion (without synthetic amino acids) in slow-growing birds, only if administered after a starter period. On the basis of these considerations, the present study verified the partial substitution of soybean with faba bean in both starter and growing diets on the productive performance, carcass characteristics and meat quality of slow-growing chickens reared under organic system.…”

The impact of faba bean with high or low content of tannins on the results of rearing and carcass quality of broiler chickens. Part I. Performance and slaughter results of chickens

“…Shargh and Azari [2010] and Laudadio et al [2011] also found no effect of the level (from 6% to 31%) of faba bean in the mixtures on the rearing results (BWG, FCR) of broiler chickens. In turn, Perella et al [2009] and Dal Bosco et al [2013] introduced 16% of faba bean into the diet of birds and observed lower weight gain and poorer feed conversion, but in younger chickens, which was compensated in subsequent rearing periods. Sterling et al [2002] and Wijtten et al [2004] emphasized that young chickens, in addition to a high demand for protein of high biological value, are very sensitive to the anti-nutritional substances contained in the feed, which should be associated with not fully developed digestive system.…”

“…Fabaceae plant seeds, including faba bean seeds, create this possibility. In recent years, numerous studies were carried out [Moschini et al 2005, Perella et al 2009, Laudadio et al 2011, Dal Bosco et al 2013, Osek et al 2013, Usayran et al 2014 concerning the possibility of introducing faba bean in place of part of the soybean extraction meal to mixtures for broiler chickens, but the results of these experiments are sometimes divergent. They are typically associated with the presence of anti-nutritional substances contained in those seeds.…”