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INFLUENCE OF SELENIUM ON PRODUCTION AND BIOCHEMICAL TRAITS IN BLOOD OF LAYING HENS
Zlata Gajčević
; Poljoprivredni fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, Osijek, Hrvatska
Gordana Kralik
; Poljoprivredni fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, Osijek, Hrvatska
Marcela Šperanda
; Poljoprivredni fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, Osijek, Hrvatska
Zoran Škrtić
; Poljoprivredni fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, Osijek, Hrvatska
Ivica Matanić
; Alltech Biotehnologija d.o.o. Zagreb, Hrvatska
Sažetak
Selenium is an essential trace element needed for animal growth and maintenance of normal biochemical function. Deficiency of selenium in birds, especially with parallel deficit of vitamin E, causes appearance of exudative diathesis and encephalomalacia, immune deficiencies, production decrease, lower fertility and hatchability of eggs, poor feathering and increased embryonic mortality of chicks. The study was conducted on 480 Hy Line Brown hybrid laying hens in the period of 26th – 30th week of age. The hens were divided into four groups and housed in cages (5 birds per cage). All birds were fed ad libitum commercial diet containing 18% of crude protein and 11.60 MJ/kg ME. Into the diets for experimental groups P1 to P4 0.2
ppm of sodium selenit, 0.2 ppm of organic selenium, 0.4 ppm of inorganic selenium and 0.4 ppm of organic selenium (Sel-Plex Alltech, inc.) was added. In all experimental groups the number of eggs and laying intensity was equal. Biochemical analysis of blood serum showed that experimental group P3 had significantly higher (p<0.05) concentration of glucoses than P1 and P4 groups. Statistically significant differences (P<0.05) in concentration of glucoses were found between experimental groups P2 and
P1.Group P4 had higher total protein content (58.20 g.l-1) than groups P1 and P3 with inorganic selenium (55.50 g.l-1 and 54.32 g.l-1, respectively) and group P2 (55.98 g.l-1) with lower levels of organic selenium in the diet.
Ključne riječi
laying hens; production traits; inorganic selenium; organic selenium; biochemical indicators
Hrčak ID:
32677
URI
Datum izdavanja:
22.12.2008.
Posjeta: 1.360 *