20080
document
Rapeseed and soybean products as protein sources for growing turkeys of different ages . ( 1 ) Apparent ileal and total tract protein digestibilities of rapeseed meal and cake and soybean meal and cake were assayed in growing turkeys at 4 , 8 and 12 weeks of age . ( 2 ) In addition , the effect of killing technique on apparent ileal protein digestibility values obtained by a slaughter method and effect of rapeseed feeding on size of specific organs were studied . ( 3 ) Protein digestibility coefficients of rapeseed products were mostly 0.10 to 0.15 units lower than those of soybean products . Ileal digestibility of protein increased slightly or remained unchanged from 4 to 8 weeks and decreased thereafter . No effect of feed processing method ( meal vs cake ) on ileal digestibility was observed . ( 4 ) Killing the birds by carbon dioxide inhalation and bleeding led to slightly lower ileal digestibility values than mechanical stunning and neck dislocation . ( 5 ) Total tract digestibility of protein decreased from 4 to 8 weeks of age for soybean meal and rapeseed meal but increased for soybean cake and rapeseed cake . From 8 to 12 weeks of age total tract digestibility of protein decreased for all the products tested . ( 6 ) Feed containing rapeseed led to enlargement of thyroid glands and hearts , but did not affect liver size or mortality .
20081
Intervention_Other
Rapeseed and soybean products
20082
Intervention_Other
rapeseed meal and cake and soybean meal and cake
20083
Intervention_Other
rapeseed feeding
20084
Intervention_Other
rapeseed products
20085
Intervention_Other
soybean products
20086
Intervention_Pharmacological
.
20087
Intervention_Other
soybean meal
20088
Intervention_Other
rapeseed meal
20089
Intervention_Other
soybean cake
20090
Intervention_Other
rapeseed cake
20091
Intervention_Other
rapeseed
20092
Outcome_Physical
Protein digestibility coefficients of rapeseed products
20093
Outcome_Other
liver size or mortality .
20094
Participant_Age
4 , 8 and 12 weeks