Effects of summer shield supplementation on growth performance, nutrient utilisation, and plasma lipid profiles in broiler chickens

A.A. Saleh, D. Ijiri and A. Ohtsuka
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A.A. Saleh: Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, Egypt
D. Ijiri: Faculty of Agriculture, Kagoshima University, Kagoshima, Japan
A. Ohtsuka: Faculty of Agriculture, Kagoshima University, Kagoshima, Japan

Veterinární medicína, 2014, vol. 59, issue 11, 536-542

Abstract: This study was conducted to evaluate the effects of herb mixture (summer shield) supplementation on growth performance, nutrient utilisation, and plasma lipid profiles in broiler chickens. Thirty-six male chicks at 15 days of age were divided into three groups with three replicates of four birds. The control group of chicks was fed a basal diet and the remaining two groups of chicks were fed the basal diet supplemented with summer shield at a concentration of 1 g/kg or 2 g/kg, respectively, until 37 days of age. Although feed intake was not different among the three groups, both body weight gain and breast muscle weight were increased in chicks fed a summer shield-supplemented diet. Summer shield supplementation decreased abdominal fat weight and consequently feed efficiency was improved. Both protein and fat utilisation was improved in chickens fed a summer shield-supplemented diet although dry matter content was not influenced. In addition, summer shield supplementation improved plasma lipid profiles, i.e., total cholesterol, triglyceride, and low-density lipoprotein cholesterol were decreased, whereas high-density lipoprotein cholesterol was increased. Furthermore, summer shield supplementation increased total protein, albumin, and globulin levels in plasma, while neither glutamate oxaloacetate transaminase nor glutamate pyruvate transaminase were affected. These results suggest that summer shield supplementation has positive effects on growth performance, nutrient utilisation, and plasma lipid profiles in broiler chickens.

Keywords: summer shield; antibiotics; broilers; nutrient utilisation; growth performance; plasma lipid profiles (search for similar items in EconPapers)
Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlvet:v:59:y:2014:i:11:id:7818-vetmed

DOI: 10.17221/7818-VETMED

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