TITLE

The effect of energy increasing and protein lowering on performance and some serum biochemical parameters of broiler chickens

AUTHOR(S)
Riyazi, Seyyed Reza; Vahdatpour, Tohid; Mirzaei-Aghsaghali, Afshar; Fathi, Hasan; Davoodi, Jaber; Vahdatpour, Sina
PUB. DATE
August 2011
SOURCE
Annals of Biological Research;2011, Vol. 2 Issue 4, p516
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This experiment was conducted to determine the effects of increasing energy to protein ratio and partial decreasing of nutrient contents of diet using different levels of fats on broiler chickens performance and serum biochemical parameters. With addition of fats (poultry oil, soybean oil and tallow) in two levels (4 or 8%) to basal diet that was already balanced on NRC (1994) recommendations, seven different non-isocaloric and non-isonitrogenic diets were prepared and given ad libitum between 22 to 49 day of age. The blood samples were collected at 35 and 49 day. The results showed that high fat intake had no significant effect on final body weight and feed conversion ratio. Serum calcium concentration in control group was found to be significantly higher than other groups, whereas serum phosphorus and albumin levels had no significant difference in dietary treatments. Therefore the result of this experiment suggested that energy increasing and protein lowering have no beneficial effects on performance and serum biochemical parameters.
ACCESSION #
73567423

 

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