Insect meal represent a promising ingredient in poultry nutrition. The aim of the trial was to evaluate the effects of dietary administration of partially defatted Hermetia illucens (HI) larvae meal on growth and slaughter performance, and on breast meat quality in broiler chickens. 192 male broiler chickens (Ross 308) were reared from day 1 to day 39 and assigned to 4 dietary treatments (6 replicates/treatment and 8 birds/replicate). HI larvae meal was included at increasing level (0, 5, 10, 15%; HI0, HI5, HI10 and HI15 respectively) in isonitrogenous and isoenergetic diets formulated for 3 periods: starter (1-11 d), growing (11-26 d) and finisher (26-39 d). HI5 showed the lowest final body weight and the worst feed conversion ratio (P<0.05), while no differences were observed among groups HI0, HI5 and HI10 for the same parameters. No differences were observed for slaughtering performance, except for breast weight that resulted higher for HI10. Breast meat color was influenced by dietary treatments resulting in a red (a*) and yellow (b*) indexes increased and decreased respectively for increasing HI inclusion rates (P<0.05), L* index resulted unaffected by treatments. Chemical composition (dry matter, crude protein, total lipids and ash) was unaffected by diets. Breast meat fatty acid composition was influenced by diets, showing increasing (C 12:0, 14:0, 16:0, 14:1, 16:1, 18:1, 20:1) or decreasing (18:0, 24:0, 18:2, 20:4, 22:5, 22:6) concentration in relation to increasing dietary HI inclusion. Total SFA and n6/n3 ratio were unaffected by treatments while total PUFA, n-3 PUFA and n-6 PUFA showed decreasing value whith increasing HI dietary inclusion. In conclusion, HI larvae meal represent a valuable protein source for broiler chicken up to 10% dietary inclusion without affecting growth and slaughter performance. Even if a total reduction of PUFA in breast meat is observed, the improved oleic acid could be considered beneficial for human health.
Hermetia illucens meal in poultry nutrition: effect on productive performance and meat quality
F Gai;
2017
Abstract
Insect meal represent a promising ingredient in poultry nutrition. The aim of the trial was to evaluate the effects of dietary administration of partially defatted Hermetia illucens (HI) larvae meal on growth and slaughter performance, and on breast meat quality in broiler chickens. 192 male broiler chickens (Ross 308) were reared from day 1 to day 39 and assigned to 4 dietary treatments (6 replicates/treatment and 8 birds/replicate). HI larvae meal was included at increasing level (0, 5, 10, 15%; HI0, HI5, HI10 and HI15 respectively) in isonitrogenous and isoenergetic diets formulated for 3 periods: starter (1-11 d), growing (11-26 d) and finisher (26-39 d). HI5 showed the lowest final body weight and the worst feed conversion ratio (P<0.05), while no differences were observed among groups HI0, HI5 and HI10 for the same parameters. No differences were observed for slaughtering performance, except for breast weight that resulted higher for HI10. Breast meat color was influenced by dietary treatments resulting in a red (a*) and yellow (b*) indexes increased and decreased respectively for increasing HI inclusion rates (P<0.05), L* index resulted unaffected by treatments. Chemical composition (dry matter, crude protein, total lipids and ash) was unaffected by diets. Breast meat fatty acid composition was influenced by diets, showing increasing (C 12:0, 14:0, 16:0, 14:1, 16:1, 18:1, 20:1) or decreasing (18:0, 24:0, 18:2, 20:4, 22:5, 22:6) concentration in relation to increasing dietary HI inclusion. Total SFA and n6/n3 ratio were unaffected by treatments while total PUFA, n-3 PUFA and n-6 PUFA showed decreasing value whith increasing HI dietary inclusion. In conclusion, HI larvae meal represent a valuable protein source for broiler chicken up to 10% dietary inclusion without affecting growth and slaughter performance. Even if a total reduction of PUFA in breast meat is observed, the improved oleic acid could be considered beneficial for human health.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
