In total, 432 thirty-six-week-old laying hens were fed a basal diet supplemented with mannan-oligosaccharide (MOS) or an essential oil mixture (EOM) from 36 to 51 wk of age. Hens divided into 3 equal groups replicated 6 times 24 per replicate. No significant difference was observed among the dietary treatments in terms performance indices. Different manipulation, high environmental temperatures negatively influenced all traits except feed conversion ratio association diminished consumption....

The efficacies of 5 widely used dietary supplements were investigated on performance indices, fecal oocyst excretion, lesion score, and intestinal tract measurements in healthy Eimeria spp.-infected birds by using a comparative model. This study included 2,400 sexed Ross 308 broiler chicks that equally divided 2 groups: the infected group, experimentally with oocysts mixed spp. at 14 d age, controls. both groups further into 6 groups, which one was fed basal diet served as control without...

White (Lohmann LSL) and Brown (ATAK-S) laying hens, were reared under organic conventional cage rearing systems, the effects of system on performance parameters, egg production, characteristics, immune response investigated. For this purpose, a total 832 hens two commercial hybrids, i.e., 416 white layers, used. The experiment lasted between 23 70 wk age. In study, layers yielded more eggs as compared to brown in both production systems. Egg weight exhibited similar pattern that performance....

A study was conducted to investigate the effect of dietary supplementation an organic acid, a probiotic or prebiotic alone combined with acid on performance and slaughter characteristics broiler chickens fed maize-soya based diet. The six treatments were: basal diet (negative control) diets containing 0.5 g mannan oligosaccharide/kg (prebiotic), 1.0 formic acid/kg (organic acid), at g/kg, prebiotic/kg + acid/kg, probiotic/kg feed. Each treatment consisted eight pens 50 birds per pen (25 male...

The effects of some alternative feed additives for antibiotic growth promoters on performance and slaughter characteristics were examined in broilers fed wheat-soya based basal starter finisher diets. A total 2160 one-day-old male broiler chicks randomly allocated to six groups with replicate pens per treatment. treatments the diet (Control), supplemented an promoter (AGP); a prebiotic, mannan oligosaccharide (Bio-Mos, MOS); essential oil oregano (Herb-Mos Oregano, HMO); plant extract hop...

The role of dietary supplemental mannan oligosaccharide (MOS) and an essential oil blend (EOB) on performance laying hens, susceptibility egg yolk hen liver to lipid oxidation were examined. Four hundred thirty-two 52-week old Lohmann hens divided into three groups fed a basal diet containing no antioxidant as control (CNT), plus 1 g/kg MOS with 24 mg/kg EOB, for 10-week experimental period. Supplementation EOB improved production rate eggshell weight, but did not influence other or quality...

Three levels of boron (0, 30, 60 ppm) were supplemented in practical corn-soybean based starter and grower diets, containing either adequate or inadequate Ca P. A total 1,800, 1-day-old sexed broiler chicks assigned to six dietary treatments fed with the experimental diets for 42 days. Boron improved overall feed conversion ratio, but increased body weight only at 21 days age (p<0.01). decreased intake case feeding on a diet deficient P, tended increase when birds received signifying...

The major quality characteristics of breast and thigh meat, including chemical composition, fatty acid cholesterol content colour slow-growing broilers (Hubbard Red-JA), reared under either organic or conventional rearing systems, fast-growing (Ross-308) grown the procedure, were investigated in this comparative study. Slaughter age was 81 days 42 for slow- birds, respectively. A lower protein, but higher fat measured meat both compared with conventionally fast growers. In systems birds had...

1. A herbal extract containing a blend of three essential oils, derived from oregano, laurel leaf and lavender, was investigated as feed additive alternative to the conventional anticoccidial sodium monensin. 2. Broilers were infected with mixture Eimeria species or left uninfected. Both uninfected broilers provided diets either (HEX), monensin (MON) without these supplements (CON). The HEX group had 50 mg extract/kg diet MON 100 monensin/kg diet. 3. All exhibited higher body weight gain...

Meat and bone meal (MBM) oyster shell (OSM) were supplemented to a basal diet (LMS), either alone or in combination, order assess the dietary influences of those complementary Ca sources on performance egg quality laying hens. Four hundred thirty-two Brown-Nick hens, at beginning their second production period, divided into four treatment groups with six replicates each. The final body weight OSM-fed hens was highest, whereas others did not differ significantly. Hens receiving OSM produced...

Abstract Sepiolite is a hydrated magnesium silicate with fibrous structure. It undergoes acid‐base interactions around the natural pH of 8.5. The zeta potential (zp) sepiolite depends on type, chemical, and mineralogical composition more importantly ionic environment suspensions. In this study, electrokinetic properties have been determined. A series systematic measurements performed to determine isoelectric point (iep), determining ions (pdi), effect monovalent sepiolite. behavior was...

The aim of this study was to investigate the effect diet type, supplementation with an essential oil mixture (EOM), and bird gender on growth performance, carcass yield, internal organ weight, immune response, small intestine histology broiler chickens. To do this, a 2×2×2 factorial arrangement designed. variables used were: two types (based either wheat or corn), 2 feed additives (with without EOM), (male female). EOM in decreased body weight corn-fed male birds at Days 21 42, but not those...

K-feldspar and Na-feldspar exhibit similar mineralogical, chemical surface properties. Froth flotation is known to be the only technique enable their separation. Our earlier studies revealed a good selectivity in presence of K+ larger extent with Na+ ions. In this context, order further identify role ions selective separation these minerals, ion electrodes were employed determine released Na K from albite microcline into solution those adsorbed onto mineral surfaces. Adsorption isotherms...

The aim of this paper is to present an approach for integrated evaluation the sustainability pig farming systems, taking into account three classical pillars: economy, environment and society. Eight themes were considered: Animal Welfare (AW), Health (AH), Breeding Programmes (BP), Environment (EN), Meat Safety (MS), Market Conformity (MC), Economy (EC) Working Conditions (WC). A total 37 primary indicators identified used 15 much contrasted systems in five EU countries. results show that...

Recently, organic broiler chicken production has received more attention worldwide. This study carried out an economic analysis to compare the profitability of versus conventional growing systems per unit meat production. To achieve this goal, 400 slow-growing chickens (Hubbard Red-JA) were reared in system, and same number fast-growing birds (Ross-308) a system. The was deduced with that compared total costs net income. Results showed can cost from 70% 86% respect variable fixed when main...

1. Two experiments were designed to determine the effect of dietary boron (B) in broiler chickens. In Experiment 1, a 2 × 4 factorial arrangement treatments was used investigate calcium (Ca) and available phosphorus (aP) (adequate or deficient) supplemental B (0, 20, 40, 60 mg/kg diet). 2, B, at 20 mg/kg, phytase (PHY) (500 FTU/kg diet) incorporated into basal diet deficient Ca aP, either alone combination. 2. The parameters that measured growth performance indices, serum biochemical...

Natural zeolite, or sodium aluminosilicate, influences calcium (Ca) and phosphorus (P) utilisation in chicks. A 2×2 factorial arrangement of treatments was used to investigate the effect dietary Ca (recommended below recommended levels) zeolite (0 0.8%) on growth, plasma, tibia faeces chickens from 1 42 days age. Zeolite supplementation did not affect overall body weight (BW) gain, feed intake (FI) conversion ratio (FCR) broiler (P>0.05). Overall mortality zeolite-fed lower than untreated...