NARASIN
|
BROILER |
At 140 ppm reduction of the
daily weight gain of 8 % versus 80 ppm. At 240 ppm reduction of the feed
consumption and growth of 30%, histopathological lesions in the muscle. At 400 ppm mortality of 17%. |
|
LAYING AND BREEDER PULLET |
No information. |
|
LAYING HEN |
Residue in the eggs, reduction
of laying at 70 ppm. 20 ppm does not affect the production. |
|
BREEDER HEN |
Reduction of the laying and of
the hatchability at 70 ppm. |
|
TURKEY |
Mortality at 70 ppm. |
|
DUCK |
No negative results at 68 ppm for
28 days. |
|
GUINEA FOWL |
Toxic. |
|
PHEASANT |
No
negative results at the usual dose. |
|
QUAIL |
No
negative results up to 50 ppm for 5
days, prostration, ataxia above. |
|
PARTRIDGE |
No information. |
|
RABBIT |
At 10 - 36 ppm : 34 to 40% mortality, lack of
co-ordination and paralysis. |
|
HORSE |
LD50 = 1 mg/kg LW. Very toxic at the common dose,
mortality when the dose exceeds. |
|
CATTLE |
LD0* = 5 mg/kg LW. Reduction of the consumption and the daily weight gain
from 0.5 mg/kg LW. Mortality at 4 mg/kg LW
after 6 days. |
|
SHEEP |
40 - 50 ppm
for a few days caused
dyspnoea, posterior weakness lack of co-ordination, prostration,
muscular toxicity. |
|
SWINE |
LD50=8 mg/kg LW
from a single oral dose 5
mg/kg LW showed ionophore toxicity (emesis, dyspnoea,
ataxia, death) |
* LD0=
Minimum fatal dose at single administration.