Agriculture Reference
In-Depth Information
60
50
40
30
20
10
0
Year
Fig. 6.1.
Registered references in the FASS System (2013) on feeding of transgenic crops in livestock.
of such transgenic crops now in use'.
Aumaitre
et al
. (2002), Cockburn (2002)
and Faust and Glenn (2002) came to the
same conclusion.
In summary, from the present per-
spective, there is no need for further
feeding studies with feed from i rst-
generation GM plants (GM plants with
input traits) in target animals. Such studies
do not contribute substantially to more
and better knowledge about the safety and
nutritious value of such feed. h is
statement is also rel ected in the published
scientii c feeding studies (Fig. 6.1). Most
feeding studies were done immediately
after the cultivation of GM plants under
farm conditions (about 50 papers/year).
Afterwards, there was a stabilization of
between 15 and 30 peer-reviewed papers/
year.
h e inl uences of feeds from i rst-
generation GM plants on animal health and
welfare, animal yields, body composition,
product quality and transfer of transgenic
DNA and newly expressed proteins in animal
body/tissue are described in Chapters 9 and
10. More references about animal feeding
studies with transgenic crops to food-
producing animals can be found in FASS
(2013).
Since 1996 (Hammond
et al
., 1996), about
150 feeding studies with feeds from i rst-
generation GM plants (GM plants with
input traits) in food-producing animals have
been reported in the scientii c literature (see
FASS, 2013). Such plants did not show
biologically relevant ef ects on the com-
position of the feed. h erefore, no
biologically relevant ef ects on animal health
and welfare, animal yields and the quality of
products of animal origin are expected (see
Tables 6.2-6.6 and Chapter 10).
In summary, feeding studies with feeds
from i rst-generation GM plants in food-
producing animals do not add substantial
knowledge to feed science and animal
nutrition because of the substantial
equivalence of such plants/feeds to their
isogenic counterparts.
From the present perspective, there is no
reason to use other feed value tables for such
feeds in animal feeding. Feeds from i rst-
generation GM plants can be used as
traditional feeds under consideration of
their composition to meet the energy and
nutrient requirements (NRC, 1994, 1998,
2001; GfE, 1999, 2001, 2008) of food-
producing animals.
