Effect of microbial probiotics on performance of broiler chicks undere normal or heat stress conditions. 1- lactobacillus or pediococcus
Abstract: Three hundreds unsexed one day old Arbor Acres broiler chicks were randomly distributed into three equal groups of 100 birds each with two replicates floor pens. Chicks were fed a commercial diet or inoculated with either Lactobacillus or Pediococcus concentrate, respectively. At 35 days of age, each group was divided into two equal sub-groups, the first was kept under normal conditions (24 ºC) while, the second sub-group was exposed for 6 days to (38 CC) for 3 hrs daily from 35 to 40 days of age.
Adding the tested biological additives to broiler diets ethier normal or high temperature conditions increased (P<0.05) live body weight, weight gainjeed consumption ant! improved feed conversion. Total protein as well as albumin and globulin fraction, glucose and triiodothyronine (T3) of plasma were also increased Whereas, mortality rate, plasma cholesterol and totaillpids values were reduced (P<0.05). However, creatinine, GPT and GOT enzymes, respiration rates and body temperatures were not affected Furthermore, there were significant decreases (P<0.05) in pH of intestine (dudenum, jejunum, ilium and caecum) and total count of some pathogenic bacteria (E.coli and Salmonella pullorum). On the other hand.
there were (P<0.05) decreases in body weight, weight gain, feed consumption, (T3), plasma glucose, total plasma proteins and increase in mortality rate of chicks subjected to heat stress. Probiotics improved broiler performance, blood constituents and reduce the deleterious effects of heat stress.
Publication year 2004
Pages 351-367
Availability location معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى - الجيزة
Availability number
Organization Name
Country Egypt
City الاسكندرية
serial title Egyptian poultry science
Volume 24 . 2
Department Poultry Breeding Research Department
Author(s) from ARC
External authors (outside ARC)
    سعيد محمود محمد ابو زيد جامعة قناة السويس
Agris Categories Animal physiology - Nutrition
AGROVOC
TERMS		 Body weight. Broiler chickens. Feed consumption. Heat stress. Lactobacillus. Pediococcus. Weight gain.
Publication Type Journal
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