Agriculture Reference
In-Depth Information
Table 6.5.
Examples of animal feeding studies with more than one feed from GM plants in the diet.
Duration
(days or
body
weight)
Animal species/
category (animals
per group)
GM plant
Traits
Portion in diet (%)
Parameters
Main results
References
Maize and
soybeans
Maize:
gat4621
and
zm-hra
genes;
soybean:
gat4601
and
gm-hra
genes
Laying hens (24);
3
28 days
feeding phases
84
65-71% maize;
13.6-19.6%
soybean meal
Feed intake, body
weight, egg
production, egg
quality
All measured values were
within the tolerance interval
McNaughton
et al
., 2011a
Maize and
soybeans
Maize:
gat4621
and
zm-hra
genes;
soybean:
gat4601
and
gm-hra
genes
Broilers (120)
42
63/66/72% maize;
28/26/21%
soybean meal in
starter/grower/
fi nisher
Feed intake, weight
gain, carcass
composition
All measured values were
within the tolerance
interval. GM maize and
soybeans are nutritionally
equivalent to non-
transgenic plants
McNaughton
et al
., 2011b
Maize and
soybeans
Insect-protected (Bt)
maize and
glyphosate-tolerant
(RR) soybean meal
Growing/fattening
pigs (12)
30-110 kg
BW
Maize: not given;
18/14% soybean
meal in grower/
fi nisher
Feed intake, weight
gain, carcass
composition, meat
quality, fate of tDNA
No signifi cant infl uence on
animal performance,
slaughtering results, meat
quality, no tDNA in tissues
Swiatkiewicz
et al
., 2011
Maize and
soybeans
Insect-protected (Bt)
maize and
glyphosate-tolerant
(RR) soybean meal
Broiler (40)
42
55/60% maize;
39/32% soybean
meal in starter/
grower
Feed intake, weight
gain, slaughtering
yield, meat quality,
fate of tDNA
No signifi cant infl uence on
animal performance,
slaughtering results, small
effects on meat colour, no
tDNA in tissues
Swiatkiewicz
et
al
.,
2010a,b; Stadnik
et al
.,
2011
