Copper is a key element affecting blood vessel growth and muscle development. However, the ions released from Cu salts are toxic. Given their specific physicochemical properties, nanoparticles of (NanoCu) may have different bioactivity affect development muscles in manner than salts. The objective study was to evaluate influence NanoCu on embryo angiogenesis at systemic molecular level, experiments using chick model. Fertilized chicken eggs were divided into control group, groups injected...

Copper (Cu) is a key trace mineral involved in variety of physiological processes, and commonly used poultry production. However, regardless the inclusion level majority Cu excreted with faeces. We hypothesise that ovo administration will allow for better utilisation during embryo development than when supplied post-natally feed to growing chickens. Thus, objective this study was evaluate effects NanoCu copper sulfate (CuSO4 ) on broiler chicken performance.The showed positive influences...

The study was aimed at evaluating the effect of supplementing a diet for laying hens with onion and garlic extracts on their productive performance egg quality. Two-hundred-sixteen were divided into 3 groups: standard diet, 0.0032% addition extract, extract. production rate, weight, feed conversion ratio monitored within first 17 wk period. In 6, 8, 10, 12, 14, 16 period, eggs analyzed for: weight to yolk ratio, color, albumen quality, eggshell 7 15 analyses conducted consistency, aroma,...

An effect of modification storage conditions the eggs broiler breeder flocks at age 49-, 52- and 70-, 73-wks life on an early embryonic development, hatching time synchronization, hatchability rates, chicks quality growth was investigated. The were divided into 4 experimental groups: COI = 5 d, turning every 12 h; NSP SPIDES treated with h pre-incubation 30°C 50–55% air humidity, delivered 10 d over storage, NCOI no pre-incubation. Eggs from older hens characterized by poorer quality. use 2...

We hypothesised that copper nanoparticles (NanoCu), because of their high physicochemical reactivity and bioavailability, could be used in much smaller quantities than bulk Cu, consequently reducing excretion Cu into the environment. The objective study was to evaluate effects various levels NanoCu on development growth broiler chickens, order establish an optimum level dietary supplementation. Broiler chickens were randomly divided five groups 10 birds each. control group received 7.5 mg...

In this study, we aimed to determine the effect of hens age and storage time on functional physicochemical properties eggs. Eggs from 25–26, 45–46, 55–56, 69–70 wk were assessed, when fresh (0 d) after 3, 6, 9 d at 30°C 50% humidity. As progressed, albumen height, Haugh unit (HU) score, yolk index (YI), vitelline membrane strength (force breaking elasticity) significantly decreased. The values HU, YI found be higher in eggs obtained younger (25–26 age) than those older hens. A significant...

1. Age-related changes in the growth performance, meat quality, and oxidativeprocesses breast muscles of three chicken genotypes Monika MICHALCZUK, Artur JÓŹWIK, Krzysztof DAMAZIAK, Żaneta ZDANOWSKA-SĄSIADEK, Agata MARZEC, Dariusz GOZDOWSKI, Nina STRZAŁKOWSKA TURKISH JOURNAL OF VETERINARY AND ANIMAL SCIENCES CrossRef

In this study, we aimed to evaluate the effect of canthaxanthin (CX) and iodine (I) on production laying hens, counteracting debilitation vitelline membrane, inhibiting Salmonella growth in eggs stored at 30°C. Three hundred hens were reared cages. Birds divided into six feeding groups (10 × 5 repetitions) that administered 0, 3 or 6 ppm CX 1 10 I with their diets. Laying rate, egg weights, feed conversion ratios controlled. The quality fresh was assessed wks 25–26, 48–50 62–63 lives. An...

The aim of this study was to determine the effect rearing system (with and without outdoor access) on carcass composition meat quality in slow-growing chickens.The highest shear force found for breast muscles chickens from group. Breast (P < 0.05) leg 0.01) birds group were characterized by content vitamin E. Therefore, differences observed fatty acid composition. A lower level saturated (SFA) 0.01), a higher n-3 polyunsaturated (PUFA) 0.05), n-6/n-3 PUFA ratio monounsaturated acids (MUFA)...

SUMMARYThe modern broiler chicken industry is connected with various disorders of the skeletal system. The fast-growing birds by increased weight gain often have leg problem which leads to economic losses. correct bone development broilers highly correlated calcium and phosphorus ratio (about 2:1) so providing these macroelements diet seemed be fundamental. most common inorganic sources such as limestone, mono- di-calcium phosphates are commonly used nowadays. doses in feed generally range...

The objective of this study was to evaluate bone resistance after in ovo administration copper nanoparticles (NanoCu) and determine the number cells positive for proliferating cell nuclear antigen (PCNA) femoral bones broiler chickens (n = 12 per group). demonstrated that from NanoCu group were characterised by a higher weight volume significantly greater fractures compared Control group. promoted proliferation PCNA-positive long chickens. A birds with (137 122, respectively) indicate...

The aim of the study was to determine effect dietary vitamin E level on cholesterol and content fatty acid profile in broiler chicken breast leg muscles. Chickens (420 cocks) were randomly divided into two feeding groups (210 birds each). control group fed with standard diet containing 44 mg kg −1 E, whereas experimental supplemented extra 200 E. addition caused a significant increase its muscles, higher value noted Meat chickens dose also characterized by lower level. as well type muscles...

Abstract BACKGROUND The purpose of this study was to determine the quality meat and histological structure muscles Ayam Cemani chickens, × Sussex hybrids slow‐growing Hubbard JA 957 chickens examine whether crossing generally available with little gives a good product interest poultry industry in food technology. RESULTS size breast leg muscle fibers varied among genotypes. had largest fiber diameter. biochemical properties muscles, including type, number, proportions, diameter metabolic...

This study was aimed at determining the effect of housing systems on growth, feed conversion ratio (FCR), meatiness and size muscle fibres Pekin (P44) Muscovy (MR71) ducks. Each genetic group included 360 birds (180 males 180 females). The ducks were divided into four experimental groups according to their sex system: intensive system (IS) outdoor (OS). A significant final body weight FCR value noted only in P44 both sexes, with OS having higher weights than IS birds. As a result, MR71...

Raw and smoked (spickgans) fillets of oat-fattened White Kołuda® goose were packed in: PET - ethylene terephthalate bags; VSP 99% vacuum; MAP1 80% O2, 20% CO2; MAP2 70% N2, 30% O2; MAP3 40% CO2, stored at a temperature 2°C. On the day packaging (0 d) during storage raw (5, 7, 10 10, 15 d), samples analyzed for weight losses, physicochemical traits, chemical composition. The study demonstrated effect time method on yield fillets. In VSP, characterized by lowest amount leakage, whereas...

Summary The aim of this study was to determine the effect dietary vitamin E on growth performance, meat quality and histological parameters chicken meat. Four hundred twenty chicks were divided into two groups with 210 birds in each. Chickens from control group receiving basal diet, whereas experimental fed diet supplemented 200 mg/kg E. Growth performance determined day change. At 63 days age slaughtered samples muscles collected for physical properties, sensory analyses.

Abstract The aim of this study was to evaluate the strength vitelline membrane and its correlation with other morphological traits viscosity egg yolk different poultry species: goose, turkey, Muscovy duck, chicken, guinea fowl Japanese quail. Vitelline (VMS) defined as work force after deformation at 6 mm. Bird species affected VMS yolk. lowest measured for goose There were no apparent differences in ducks, fowl, chickens In contrast, turkey appeared be highest strength. Statistically...

We studied the changes in morphological, geometric, densitometric, and mechanical parameters of femur tibia during 56 D rearing chickens with different growth rates. Ten were collected from fast-growing (FG) 2 types medium-growing (MGH MGGP) immediately after hatching (0 D) on 7, 14, 21, 35, 42, 49, life. The bone across all genetic groups found to be similar 0 D, exceptions lower percentage contribution weight (BW) FG (P < 0.05), total volume MGGP maximum elastic strength MGH 0.05). bones...

1. Opinion of the Scientific Panel on contaminants in food chain [CONTAM] related to ochratoxin A (OTA) as undesirable substance animal feed EFSA Journal CrossRef

The use of intensive selection procedure in modern broiler chicken lines has led to the development several skeletal disorders chickens. Therefore, current research is focused on methods improve bone quality birds. In ovo technology, using nanoparticles with a high specificity bones, potential approach. present study aimed evaluate effect inoculation (IOI) calcium carbonate (CCN) embryo development, health status, characteristics, and production results quality. After assessing vitro cell...

Abstract To improve the quality of poultry meat and increase health-promoting properties, nutrition used additives such as phytobiotic substances amino acids. The aim this study was to analyze possibility improving production rates by simultaneously supplementing broiler diets with garlic extract β-alanine. A total 1050 ROSS 308 chickens were part experiment. divided into several groups: control group without (Control), groups 0.5% (G05) or 2% (G2), added β-alanine (B0.5) (B2), both (BG0.5)...