TY - JOUR
T1 - Performance, nutrient digestibility and selected gut health parameters of broilers fed with black soldier fly, lesser mealworm and yellow mealworm
AU - van der Heide, Marleen Elise
AU - Nørgaard, Jan Værum
AU - Engberg, Ricarda Margarete
PY - 2021
Y1 - 2021
N2 - This study aimed to investigate the effect of feeding three types of insect meal on broilers’ performance and selected gut health parameters. Day-old straight-run Ross 308 broilers (n=600) were group housed in 24 pens and fed diets containing10% of either Tenebrio molitor (yellow mealworm, YMW), defatted Hermetia illucens (black soldier fly, BSF) or Alphitobiusdiaperinus (lesser mealworm, LMW), or a control (CTRL) diet for 35 days. Feed intake and gain were recorded at days14, 28 and 35. On day 13, four broilers from each pen were placed in metabolic cages to determine apparent total tractdigestibility after adaptation to 100% of one of three types of insect meal. Birds were killed, and intestinal content wascollected on days 22 and 36 for determination of pH, selected groups of intestinal bacteria and short chain fatty acids(SCFA). Footpad lesions were scored on day 36. Birds fed LMW and YMW ate less than birds fed BSF or CTRL, but feedconversion ratio (FCR) was improved when birds were fed LMW. Dry matter digestibility was similar among insects,but differences were observed in ash and fat digestibility and nitrogen retention in which the BSF meal gave the highestdigestibility of these nutrients. Birds fed any type of insect meal diet had higher levels of Clostridium perfringens in caecaland ileal digesta. Footpad dermatitis severity was similar between CTRL and insect-supplemented diets. Total SCFAlevels as well as butyrate in digesta of birds fed BSF was lower than the levels of these SCFA in the other treatments. Thepropionate concentrations in caecal and ileal digesta were high for all diets containing insect meal. In conclusion, gainwas maintained when feeding BSF but not LMW and YMW due to lower feed intake.
AB - This study aimed to investigate the effect of feeding three types of insect meal on broilers’ performance and selected gut health parameters. Day-old straight-run Ross 308 broilers (n=600) were group housed in 24 pens and fed diets containing10% of either Tenebrio molitor (yellow mealworm, YMW), defatted Hermetia illucens (black soldier fly, BSF) or Alphitobiusdiaperinus (lesser mealworm, LMW), or a control (CTRL) diet for 35 days. Feed intake and gain were recorded at days14, 28 and 35. On day 13, four broilers from each pen were placed in metabolic cages to determine apparent total tractdigestibility after adaptation to 100% of one of three types of insect meal. Birds were killed, and intestinal content wascollected on days 22 and 36 for determination of pH, selected groups of intestinal bacteria and short chain fatty acids(SCFA). Footpad lesions were scored on day 36. Birds fed LMW and YMW ate less than birds fed BSF or CTRL, but feedconversion ratio (FCR) was improved when birds were fed LMW. Dry matter digestibility was similar among insects,but differences were observed in ash and fat digestibility and nitrogen retention in which the BSF meal gave the highestdigestibility of these nutrients. Birds fed any type of insect meal diet had higher levels of Clostridium perfringens in caecaland ileal digesta. Footpad dermatitis severity was similar between CTRL and insect-supplemented diets. Total SCFAlevels as well as butyrate in digesta of birds fed BSF was lower than the levels of these SCFA in the other treatments. Thepropionate concentrations in caecal and ileal digesta were high for all diets containing insect meal. In conclusion, gainwas maintained when feeding BSF but not LMW and YMW due to lower feed intake.
KW - Alphitobius diaperinus
KW - Clostridium perfringens
KW - Hermetia illucens
KW - Tenebrio molitor
KW - insect meal
UR - http://www.scopus.com/inward/record.url?scp=85123543988&partnerID=8YFLogxK
U2 - 10.3920/JIFF2020.0150
DO - 10.3920/JIFF2020.0150
M3 - Journal article
SN - 2352-4588
VL - 7
SP - 1011
EP - 1022
JO - Journal of Insects as Food and Feed
JF - Journal of Insects as Food and Feed
IS - 6
ER -