[PDF] Top 20 Egg production evaluation of laying hens by multivariate analysis

Egg production evaluation of laying hens by multivariate analysis

... Egg production is a trait controlled by many pairs of genes, and is influenced by the environment; it has great influence on the relationship between income/cost on egg ... See full document

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Evaluation of Genetic Divergence among Lines of Laying Hens using Cluster Analysis

... lines of laying hens (Leghorn) were used and had been developed at Universidade Federal de Viçosa, MG, ...obtained by artificial insemination in an open house with ...weeks of age ... See full document

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Lysine and zinc chelate in diets for brown laying hens: effects on egg production and composition1

... on egg production. With respect to the use of zinc (Table 2 and 3), the increased concentration of mineral coincided with a linear decrease (P = throughout the experimental period (P = ...in ... See full document

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Genotypic parameters for egg production in pure breed hens by using random regression model

... and egg production (CRUZ et ...random production curve of each animal, expressed as deviation from the mean curve of the population or group of animals (BONAFÉ et ...the ... See full document

7

Age influence on quality of shell and penetration in bacterial laying lightweight eggs

... influence of the bird’s age on the quality of the shell and percentage of bacterial penetration in commercial ...laid by light laying hens in their first laying cycle at ... See full document

10

Organic Egg Production, Egg Quality, Calcium Utilization, and Digestibility in Laying Hens Fed with Mushroom (Flammulina velutipes) Stem Waste

... possibility of using mushroom (Flammulina velutipes) stem waste (FVW) in layer diets was explored in this ...total of 180, 40-week- old ISA Brown laying hens were randomly assigned to 5 ... See full document

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Effect of the Inclusion of Organic Copper, Manganese, And Zinc in The Diet of Layers on Mineral Excretion, Egg Production, and Eggshell Quality

... replacement of inorganic copper, manganese, and zinc sources by organic sources in the diet of laying hens during the second laying cycle in trace mineral excretion, egg ... See full document

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Previsão de mortalidade de galinhas poedeiras em função de ondas de calor

... sheds of an egg-producing farm, located in the municipality of Bastos-SP, whose coordinates are 21º92’02” South latitude, 50º73’17” West longitude and 445 meters of ...characterized by ... See full document

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EFFECTS OF THE USE OF SOYBEAN OIL AND ANIMAL FAT IN THE DIET OF LAYING HENS ON PRODUCTION PERFORMANCE AND EGG QUALITY

... precursor of n-6 and n-3 chains, the highest proportions were found in the egg yolks of laying hens that received the diet containing soybean ...percentage of C18:2 ...percentage ... See full document

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Fernando Guilherme Perazzo Costa1 , Valéria Pereira Rodrigues2 , Cláudia de Castro Goulart 3,4

... semi-heavy laying hens, observed increases in feed intake as an attempt to maintain the nutrient levels for egg ...intake of egg-producing quails, in percentage of body weight, ... See full document

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Digestible lysine levels for laying hens and their effects on egg quality

... effect of supplemented digestible lysine for this parameter when studying ...0.900% of digestible lysine for light laying hens, with lower feed intake at level ...reduction of 2.92 ... See full document

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Metabolizable energy levels for semi-heavy laying hens at the second production cycle

... effect of the metabolizable energy levels on the egg production, egg mass, feed conversion per egg mass and per dozen eggs was observed in this study ...the egg weight was not ... See full document

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Egg Quality in Layers Housed in Different Production Systems and Submitted to Two Environmental Conditions

... The production system using cages is a highly polemical issue in Europe, because of the space restriction imposed to laying ...and egg quality. This study evaluated egg quality and ... See full document

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Ramos do Egypto Queiroga3 , Walter Esfrain Pereira4 , Raul da Cunha Lima Neto5, Janete Gouveia de Souza5

... mg/g egg yolk) observed in this study was similar to that observed by Bragagnolo et ...state of Sao Paulo and obtained an average content of 12.3 mg of cholesterol per gram of ... See full document

5

Production of laying hens in different rearing systems under hot weather

... Laying hens in a state of heat stress have, as the first consequences, a lower feed intake and higher water intake, which reduce the availability of essential nutrients for production ... See full document

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ENZYME COMPLEX AND WHOLE RICE BRAN ON THE PRODUCTIVE PERFORMANCE AND QUALITY OF EGGS FROM LAYING HENS AT THE SECOND PRODUCTION CYCLE COMPLEXO ENZIMÁTICO E FARELO DE ARROZ INTEGRAL SOBRE O DE- SEMPENHO PRODUTIVO E QUALIDADE DOS OVOS DE POEDEIRAS EM SEGUNDO

... variables of productive performance analyzed were live weight (LW, g), feed intake (FI, g) percentage of eggs produced (PEP, %), feed conversion by the dozen (FC/Dz, kg/dz), and feed conversion per ... See full document

10

Effect of dietary energy concentration on performance parameters and egg quality of white leghorn laying hens

... function of feed intake. However, feed intake is inluenced by several factors, such as egg production, bird age, and management and environmental ...addition, laying hens adjust ... See full document

8

Effects of Boric Acid and Humate Supplementation on Performance and Egg Quality Parameters of Laying Hens

... results of studies involving hens on supplementations of humate (Kucukersan et ...level of B (25, 50, 75 ppm) effects on laying ...parameters of hens (feed intake, ... See full document

8

THE PERFORMANCE OF LAYING HENS FED DIFFERENT CALCIUM SOURCE

... metabolism of carbohydrates. Mg intake can increase the digestibility of feed and increase egg ...body of poultry and Zn is an essential component of several enzymes, and it has both ... See full document

8

Salmonella contamination in an egg production chain of a laying hens integration.

... Contamination of ISA BROWN layer hens by Salmonella ...serotyping of the isolated strains were performed in 30 ...contaminated by Salmonella spp. were analyzed by culturing the ... See full document

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