creators_name: Andersson, Robby
creators_name: Meyer zu Bakum, R.J.
creators_name: Schreiber, A.
editors_name: Heß, J
editors_name: Rahmann, G
type: conference_item
datestamp: 2005-03-05
lastmod: 2009-08-20 14:23:56
metadata_visibility: show
title: Legehennefutter mit 100% Öko-Komponenten
ispublished: pub
subjects: 9poultry
full_text_status: public
keywords: Geflügel, Tierernährung, Tiergesundheit
abstract: EC Regulation 1804/99 requires organic sources of all components of feed in organic husbandry. Especially for organic pig and poultry nutrition it is not researched which components ensure the supply of amino acids. 
In our previous studies in 2003 with laying hens with genetics of TETRA, the effect of a high percentage of linoleic acids coming from soybeans was demonstrated. The egg weight increased to an average of 73 g in laying week 38 (ANDERSSON et al. 2004). Consequently we tried in 2004 to reduce the egg weights  
•	by using the genetics of ISA XH 
•	by using components with less linoleic acid in the feed. 
Using the genetics of ISA XH was one advisable result to reduce egg weights. In this actual study, the hens fed with soybeans laid eggs with highest weight, but on an acceptable level of about 60 – 68 g / egg. Rations with very low energy concentration (9,6 MJ ME, 21 g/kg linoleic acid) were accepted by the hens, while feed consumption increased to more than 145 g/ hen and day. Therefore it seems possible to lower concentrations of amino acids, especially methionine, if the feed intake increases. The laying performance of hens fed with energy concentrations of 9,4 – 9,8 MJ ME was during the laying period of first 14 weeks comparable with the performance of the control group fed with a “standard” ration, later (data only until week 22) it was on a lower but acceptable level.

date: 2005
date_type: published
publication: Ende der Nische, Beiträge zur 8. Wissenschaftstagung Ökologischer Landbau
publisher: kassel university press GmbH, Kassel
refereed: yes
referencetext: %
Andersson R, Jost Meyer zu Bakum R, Schreiber A (2004) Legehennen-Fütterung:
100% - Bio – Die Folgen einer Proteinversorgung durch ölhaltige Proteinträger oder
D/L Methionin-Zusatz. SÖL Berater-Rundbrief 2/04 : 35 - 40
Benevenga NJ, Gahl MJ, Blemings KP (1993) Role of protein synthesis in amino acid
catabolism. J.Nutr. 123:332 – 336
Han YM, Suzuki H, Parsons KM, Baker DH (1992) Amino acid fortification of a lowprotein
corn and soybean meal diet for chicks. Poultry Sci. 71:1168 - 1178
Kirchgessner M, Voreck O (1980) Zur Umsetzbarkeit der Futterenergie bei
Legehennen in Abhängigkeit von der Energie- Proteinversorgung.
Arch. Geflügelk. 44: 61-44
Schutte JB, Pack M, (1994) Requirement of laying hen for sulfur amino acids. Poultry
Sci 73: 274 – 280
citation: Andersson, Robby; Meyer zu Bakum, R.J. and Schreiber, A. (2005) Legehennefutter mit 100% Öko-Komponenten. [Using 100% organic feed in laying hens.] 8. Wissenschaftstagung Ökologischer Landbau - Ende der Nische, Kassel, 01.03.2005 - 04.03.2005. In: Heß, J and Rahmann, G (Eds.) Ende der Nische, Beiträge zur 8. Wissenschaftstagung Ökologischer Landbau, kassel university press GmbH, Kassel.
document_url: http://orgprints.org/3398/1/3398.pdf