Save

Feeding value of black soldier fly larvae compared to soybean in methionine- and lysine-deficient laying hen diets

In: Journal of Insects as Food and Feed
Authors:
M. Heuel ETH Zurich, Institute of Agricultural Sciences, Animal Nutrition, Eschikon 27, 8315 Lindau, Switzerland.

Search for other papers by M. Heuel in
Current site
Google Scholar
PubMed
Close
https://orcid.org/0000-0002-0750-4506
,
M. Kreuzer ETH Zurich, Institute of Agricultural Sciences, Animal Nutrition, Eschikon 27, 8315 Lindau, Switzerland.

Search for other papers by M. Kreuzer in
Current site
Google Scholar
PubMed
Close
https://orcid.org/0000-0002-9978-1171
,
C. Sandrock Research Institute of Organic Agriculture (FiBL), Department of Livestock Science, Ackerstrasse 113, 5070 Frick, Switzerland.

Search for other papers by C. Sandrock in
Current site
Google Scholar
PubMed
Close
https://orcid.org/0000-0002-2054-2216
,
F. Leiber Research Institute of Organic Agriculture (FiBL), Department of Livestock Science, Ackerstrasse 113, 5070 Frick, Switzerland.

Search for other papers by F. Leiber in
Current site
Google Scholar
PubMed
Close
https://orcid.org/0000-0002-1434-6155
,
A. Mathys ETH Zurich, Institute of Food, Nutrition and Health, Laboratory of Sustainable Food Processing, Schmelzbergstrasse 9, 8092 Zurich, Switzerland.

Search for other papers by A. Mathys in
Current site
Google Scholar
PubMed
Close
https://orcid.org/0000-0003-1633-848X
,
B. Guggenbühl Agroscope, Microbial Systems of Food, Schwarzenburgstrasse 161, 3003 Bern, Switzerland.

Search for other papers by B. Guggenbühl in
Current site
Google Scholar
PubMed
Close
,
I.D.M. Gangnat ETH Zurich, Institute of Agricultural Sciences, Animal Nutrition, Eschikon 27, 8315 Lindau, Switzerland.

Search for other papers by I.D.M. Gangnat in
Current site
Google Scholar
PubMed
Close
https://orcid.org/0000-0001-8148-3830
, and
M. Terranova ETH Zurich, Institute of Agricultural Sciences, Animal Nutrition, Eschikon 27, 8315 Lindau, Switzerland.
ETH Zurich, AgroVet-Strickhof, Eschikon 27, 8315 Lindau, Switzerland.

Search for other papers by M. Terranova in
Current site
Google Scholar
PubMed
Close
https://orcid.org/0000-0003-4152-8429

To increase the sustainability of egg production, alternatives to soybean in poultry nutrition are intensively searched for. Black soldier fly larvae (BSFL) could have a great potential, but the comparative protein value to soybean is not well known. The main objective of this study was to facilitate this comparison by using experimental diets clearly limited in calculated supply of sulphurous amino acids and lysine. Fifty laying hens (Lohmann Brown Classic), aged 40 weeks, were fed one of five diets for 7 weeks (n=10). Two diets were based on soybean cake and oil (SS, SS-) as protein and energy sources, and three diets contained partially defatted BSFL meal and fat from two different origins (AA-, AB-, BB-). Different from SS, all other diets were designed to be deficient in methionine and lysine in relation to requirements by >20%. The realised supply with total sulphurous amino acids and lysine was indeed superior with SS even though this diet was analysed to be more deficient in methionine than the BSFL-based diets. Despite the calculated deficiency in limiting amino acids, laying performance of the hens of all groups was similar and ranged between 93 and 97%. Similarly, egg mass, daily feed intake and feed efficiency were not influenced by the BSFL-based diets. The yolks of group BB- were more intensely coloured compared to the others indicating a difference between BSFL origins. Yolks of SS-, but not of the BSFL-based diets, had lower contents of dry matter and ether extract than those of SS. Including BSFL into the diet did not influence the odour of the eggs tested in scrambled form. The results show that soybean-based feeds for laying hens may be completely replaced by BSFL-based feeds and suggest that the recommendations for amino acid supply of laying hens might need revision.

Content Metrics

All Time Past 365 days Past 30 Days
Abstract Views 0 0 0
Full Text Views 745 286 23
PDF Views & Downloads 531 223 14