Evaluation of Hempseed (Cannabis sativa L.) Presscake and Oil on Production Performance, Amelioration of Fatty Liver Disease, and Feather Pecking in Laying Hens (Gallus gallus domesticus)
Date
2024-08-31
Authors
Gill, Jessica
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Abstract
As the Canadian poultry industry transitions to alternative housing systems by 2036, larger group sizes may increase feather pecking (FP), leading to mortality, and reduced egg production. Hempseeds are rich in protein and fatty acids, which may support egg production and feather growth, and the CBD may provide a calming effect. Hemp’s antioxidant and anti-inflammatory properties may reduce fatty liver disease (FLD), a prominent cause of mortality in cage systems. Two 14-week studies tested hempseed presscake (HP at 10, 20%) and hempseed oil (HO at 3 and 6%) as feed ingredients in laying hen diets. Study 1 involved Lohmann LSL-Lite White and Lohmann Brown-Lite hens in conventional housing; study 2 used Lohmann LSL-Lite White in a single-tier system. Results showed that hemp products improved egg quality, bone strength, and feather condition, with potential benefits for FLD. Findings support hemp's inclusion in poultry diets, with applications under review for CFIA approval.
Description
This research examines the effects of hempseed presscake (HP) at inclusion levels of 10 and 20% and hempseed oil (HO) at inclusion levels of 3 and 6%, respectively, on two strains of laying hens in a conventional cage and single-tier housing system. Results show that HP and HO improved egg quality, bone strength, and feather condition, while potentially reducing liver fat. The findings suggest that including these hemp products in hen diets can benefit their health and performance.
Keywords
hempseed presscake, hempseed oil, laying hen, egg quality, fatty acids, cannabidiol