0.857
IF5
0.900
IF
Q3
JCR
0.92
CiteScore
0.405
SJR
Q2
SJR
20
MNiSW
165.24
ICV
ORIGINAL PAPER
 
CC-BY 4.0
 
 

The use of Avoparcin (Avotan) in laying hens feeding

D. Jamroz 1,  
T. Trziszka 2,  
 
1
Department of Nutrition and Feed Management, Wrocław Agricultural University, Norwida 25/27, 50-375 Wrocław, Poland
2
Department of Technology of Animal Products, Wrocław Agricultural University, Norwida 25/27, 50-375 Wrocław, Poland
3
Tronina, Raków 34a, 56-412 Borowa, Poland
J. Anim. Feed Sci. 1994;3(2):107–117
Publish date: 1994-05-12
KEYWORDS
ABSTRACT
Two experiments were carried out with 192 hybrid Tetra SL hens kept in cages (A) and 5340 medium-weight Hisex Brown layers kept on litter (B). Experimental diets contained 16 (A) or 18% (B) crude protein and about 11.2 MJ ME/kg. Five or 10 (A) and 10 or 20 (B) ppm of Avoparcin (Avotan) were added to the experimental diets. The laying rate, egg mass, feed intake, mortality, egg quality and Ca, inorganic-P and Mg levels in blood serum were investigated. In experiment A Avoparcin in both 5 and 10 ppm concentration did not affect the laying rate which averaged 85.7%. In experiment B the dose of 10 ppm Avoparcin increased the laying rate by 18%, 20 ppm by 6%. The improvement of feed utilization per egg by 6% and the strength of the shell by about 10% after Avoparcin addition were observed in Experiment B only. The influence of antibiotic on the mineral components of the blood was negligible and only the level of inorganic P varied.
ISSN:1230-1388