One thousand two hundred and fifty sexed day-old broiler chicks obtained from a commercial hatchery were divided randomly into five treatment groups (negative control, antibiotic essential oil combination (EOC) at three levels) of 250 birds each. Each group was further sub-divided replicates 50 (25 male 25 female) per replicate. The in the EOC extracted different herbs growing Turkey. 24, 48 or 72 mg/kg diet an 10 mg avilamycin/kg added to basal diet. There significant effects dietary...

The aim of the present study was to examine effects a herbal essential oil mixture on performance broilers produced by young (30 wk) or an old breeder (80 flock. One thousand and eight unsexed day-old broiler chicks (Ross-308) originating from two flocks were randomly allocated three treatment groups 336 birds each. Dietary treatments were: control diets containing 24 mg/kg 48 mixture. There no significant dietary body weight at 21 42 days. effect age parents did not have days age. Up feed...

The effects of dietary supplementation Yucca schidigera and natural zeolite on broile r performance, ammonia concentration broiler house, litter moisture, fecal dry matter crude ash were investigated. One day-old, nine hundred sixty unsexed chicks obtained from a commercial hatchery divided into 4 treatment groups 240 birds each. Birds randomly assigned to the four diets, consist control, 15 g zeolite/kg, 25 zeolite/kg 120 mg schidigera/kg. Body weights significantly (P<0.05) different among...

The present experiment was conducted to examine the effects of pre- and postnatal conditioning induce thermotolerance in broilers hatching from eggs orginating younger older breeder flocks. From each flock, 500 were randomly divided into 2 groups incubated at standard (SIT) high (HIT) temperatures. At hatch, chicks allotted 36 floor pens. 5 d age 3 pens per parent incubation temperature heat conditioned (C) for 24 h. 21 age, kept under (S) rearing temperatures, whereas remaining (including...

This study was conducted to determine the effects of supplementation different levels fish oil (FO) and flax seed (FS) in diets layers on content egg yolk fatty acid, cholesterol, blood parameters, production quality criteria. In experiment, a total 120 Isa-White laying hens 34 weeks age were used. Hens divided randomly into five groups fed containing no FO FS; 1.5% FO; 4.32% FO+4.32% FS 8.64% for eight weeks. A significant decrease cholesterol (mg/g yolk) found eggs from 1.5 % as compared...

The experiment was conducted to evaluate the effects of dietary supplements either an essential oil mixture (EOM) or a mannan oligosaccharide (MOS) as alternatives antibiotic feed additive (avilamycin) for layers kept under hot summer conditions. Four hundred and eighty 54-week old NickBrown hens were assigned four treatments. Each treatment consisted replications 10 cages (three per cage). groups were: 1) Control: Basal diet without additive; 2) plus (10 mg avilamycin/kg feed); 3) 1 g...

Eggs obtained from broiler breeders at 32 (young), 42 (middle aged), and 65 wk (old) were used to measure the effects of heat acclimation during incubation on morphological, physiological, metabolic traits internal pipping (IP) hatch. All eggs same stock, hatching performance was also evaluated. each breeder age incubated control (CONT) or 38.5°C for 6 h daily d 10 18 (HA). On after exposure 14, absolute proportional weights significantly lower HA than CONT embryos. By time hatching, chicks...

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...

One thousand two hundred 1-day-old Lohmann LSL white and Brown layer chickens were fed diets supplemented with either an antibiotic growth promoter (AGP) or herbal essential oil mixture (EOM) till 58 wk of age to reveal the long-term effects those additives on growth, performance wholesome egg quality parameters. The study was arranged in a 2×3 factorial design strains three feed additive regimens. Thus, birds both randomly assigned dietary treatments, i.e., standard basal diet (control),...

One hundred and eighty 7-week-old laying quail were fed various diets over a 12-week period. The included control diet (without essential oil mixture (EOM) or antibiotics (ANTs)), basal including EOM (24 mg/kg feed), an ANT (avilamycin, 10 feed). Each treatment comprised 4 replications with cages (15 per cage), amounting to 60 group. Diets (in mash form) water provided for ad libitum consumption. consisted of 6 different oils derived from the following herbs: oregano ( Origanum sp.), laurel...

1. This study compared the effect of dietary supplementation with organic or inorganic selenium (Se) sources plus control amounts large vitamin E (α-tocopherol acetate) in broilers raised at (20 to 24°C) low (14·5 16·8°C) temperatures after 2 weeks age. 2. The following treatments were used from one day old. Diet 1, diet, comprised a commercial diet containing 0·15 mg/kg Se and 50 mg E/kg feed. was same as supplemented Se. 3 but 200 E. 4 replaced 0·30 5 4, 3. Low temperature reduced growth...

The effects of supplementing a basal diet with 2 levels an essential oil mixture and antibiotic on the growth, laying traits, egg hatching characteristics broiler breeders were examined in this study. Nine hundred sixty female 128 male at age 1 d old randomly allocated to 16 replicates (i.e., 4 dietary treatments) floor pen trial. Two (EOM; i.e., 24 48 mg EOM/kg diet) l0 avilamycin/kg added starter, grower, diets from 0 45 wk age. Daily feed allocations adjusted produce target BW production...

The aim of this study was to investigate the efficacy feed-grade preparations mannan oligosaccharides ( MOS: ) and oregano essential oil OEO: in forced molted or fully fed 82-week-old, laying hens. A 2 × 3 factorial experiment investigated influence molting vs. full feeding dietary supplements [i.e., unsupplemented control, MOS (1 g/kg) diet, OEO (24 mg/kg) diet] on production parameters, egg quality, serum stress indicators, blood constituents, tibial characteristics, liver antioxidant...

The aim of the present study was to investigate effects parental age and heat acclimation during incubation on BW, cloacal temperature, blood acid-base balance in fast-growing broilers exposed daily cyclic high ambient temperatures from 21 42 d posthatch. Eggs obtained 32- (younger), 42- (middle-aged), 65-wk-old (older) breeders were divided into 2 groups. One group eggs incubated at control temperature (IT(CONT)) second acclimated 38.5 degrees C for 6 h/d 10 18 (IT(HA)). Chicks reared...

This study was undertaken to investigate the effects of management techniques used under heat stress on growth as well developmental instability, duration tonic immobility (TI), and heterophil-to-lymphocyte ratios (H:L) broilers. Three-hundred sixty cockerels obtained from a commercial hatchery were randomly assigned 12 floor pens. When reached 21 d age, three pens kept controls. Broilers in other nine moved room heated 32 35°C between 1000 1700 h each day 42 age. randomized into treatment...

This study was designed to determine the physiological effects of 3 preslaughter treatments (catching, crating, and transportation) on male female broiler chickens slaughtered at 35, 42, 49, 56 d age. At each age, 18 birds (3 per sex pen; replicate pens) were sampled after catching, transportation for 1 h core body (rectal) temperature (Rt), blood pH, gases (partial CO2 O2 pressures), ions (Na+, K+, Ca++, HCO3-), hemoglobin, plasma glucose, albumin, uric acid, creatine kinase (CK) activity,...

The objective of the present experiment was to study effects parental age and heat acclimation embryos on blood metabolites hormones broilers exposed daily cyclic ambient temperatures from d 21 42. Eggs obtained 32 (younger), 42 (middle-aged), 65 wk (older) breeders were divided into 2 groups. One group eggs incubated at control incubation temperature (ITCONT), whereas second heat-acclimated 38.5 degrees C for 6 h/d 10 18 (ITHA). Chicks reared standard brooding 1 d. From 42, half...

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 effect of dietary fat type on broiler breeder performance was evaluated in the experiment. Three different sources (sunflower oil, fish tallow) were supplemented into a corn-soybean meal-based diet. control diet included no supplemental fat. All diets isocaloric and isonitrogenous. Feeding experimental initiated when breeders (Ross 508) 22 wk old. Body weights hens males not affected by treatments during period. Tallow supplementation to significantly decreased hen-day egg production...

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...

One hundred and sixty-eight 11-week-old laying quails (Coturnix coturnix japonica) were fed one of the following three diets: (1) control: basal diet with no lentil (Lens culinaris L.) byproduct; (2) inclusion 10% (3) 20% byproduct. In recent years, colour sorting machines are used in order to separate red lentils according their colours. The goal is select items which discoloured, not as ripe required, or still hull even after dehulling seed. During sorting, a new byproduct called “sorting...

Four hundred and eighty 54-week old Nick-Brown hens were assigned to four dietary treatments. Each treatment consisted of replications 10 cages (three per cage). The experimental diets were: 4.5 g available phosphorus (aP)/kg without phytase (control); aP/kg with phytase; 3.0 phytase. Commercial microbial phytase, Natuphos(R), was added at 300 unit (FTU) /kg diet. Diets isonitrogenous (16.5% crude protein) isoenergetic (11.5 MJ, ME/kg). Criteria evaluated included egg production, feed...

This experiment was performed to determine the effects of dietary ascorbic acid (ASA) supplementation on blood components, leukocyte and tonic immobility male turkeys under summer conditions. A total 120 one-day-old were fed with three different diets. The experimental diets were: control without ASA (ASA-0), 150mg ASA/kg (ASA-150) 300mg (ASA-300) diet. received for 18 weeks. Diets in mash form water provided ad libitum. In ASA-150 ASA-300 groups, eosinophile basophile ratios higher than...