Consulta: subjectFacets:"Haugh units"
Registros recuperados: 4
Data/hora: 02/06/2024 05:36:20

Physical-Chemical Characteristics of Designer and Conventional Eggs
Provedor de dados: 89
Autores: Kralik,Z; Kralik,G; Grčevi&amp;#263;,M; Kralik,I; Gantner,V.
ABSTRACT The objective of this study was to compare the internal and external quality of conventional and designer eggs. In total, 120 Tetra SL laying hens were randomly allotted to two treatments (K and P groups), with 12 replicates of five hens each. The control group (K) was fed a standard layer diet, producing conventional eggs, and the P group was fed a modified diet supplemented with 5% of an oil mixture, 0.5 mg organic selenium/kg, 200 mg lutein/kg and 200 mg vitamin E/kg, producing designer eggs. Treatments did not influence (p&gt;0.05) egg weight or egg component weights. Designer eggs presented higher albumen proportion and lower eggshell proportion than conventional eggs (p&lt;0.01). Relative to egg quality parameters, designer eggs presented...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Designer eggs; Haugh units; Laying hens; PH; TBARS.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000100119

The use of light-emitting diodes (LED) in commercial layer production
Provedor de dados: 89
Autores: Borille,R; Garcia,RG; Royer,AFB; Santana,MR; Colet,S; Naas,IA; Caldara,FR; Almeida Paz,ICL; Rosa,ES; Castilho,VAR.
Artificial lighting is one of the most powerful management tools available to commercial layer producers. Artificial light allows anticipating or delaying the beginning of lay, improving egg production, and optimizing feed efficiency. This study aimed at comparing the performance of commercial layers submitted to lighting using different LED colors or conventional incandescent lamps. The study was carried out in a layer house divided in isolated environments in order to prevent any influenced from the neighboring treatments. In total, 360 Isa Brown layers, with an initial age of 56 weeks, were used. The following light sources were used: blue LED, yellow LED, green LED, red LED, white LED, and 40W incandescent light. Birds in all treatment were submitted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial lighting; Commercial layers; Egg weight; Haugh units.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000200009

Egg quality of hens fed different digestible lysine and arginine levels
Provedor de dados: 89
Autores: Carvalho,FB de; Stringhini,JH; Matos,MS; Café,MB; Leandro,NSM; Gomes,NA; Santana,ES; Jardim Filho,RM.
This experiment aimed at evaluating the influence of the supplementation of digestible lysine and digestible arginine at different ratios in the diet fed to layers between 24 to 44 weeks of age on egg quality. In total,320 Lohmann LSL laying hens were allotted according to a completely randomized design in a 2 x 4factorial arrangement, consisting of two digestible lysine levels (700 or 900 mg/kg of diet) and four digestible arginine levels (700, 800, 900,or 1000 mg/kg of diet). Diets contained, therefore, digestible Lys:Arg ratios of 100, 114, 128, and 142 when the diet contained 700 mg digestible lysine per kg of diet, and 78, 89, 100, and 111 when 900 mg digestible lysine per kg was supplemented. The data obtained with digestible arginine levels were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antagonism; Digestible amino acid; Egg components; Haugh units.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000100063

The effect of dietary phytase on broiler performance and digestive, bone, and blood biochemistry characteristics
Provedor de dados: 89
Autores: Sousa,JPL de; Albino,LFT; Vaz,RGMV; Rodrigues,KF; Da Silva,GF; Renno,LN; Barros,VRSM; Kaneko,IN.
The dietary inclusion of phytase increases nutrient and energy bioavailability for broilers. The effect of phytase increases nutrients and energy bioavailability for either the objective of this experiment was to evaluate the influence of nutrient and energy reduction in diets supplemented with phytase on the performance, gastrointestinal pH, organ and bone composition, and blood biochemistry of broilers between eight and 21 days of age. In the study, 1.120 male Cobb 500(r) broilers, with 161±1g average weight, were used. At eight days of age, birds were distributed according to a completely randomized experimental design with seven treatments in a 3x2+1 factorial arrangement with eight replicates of 20 broiler each. Treatments corresponded to reduction of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antagonism; Digestible amino acid; Egg components; Haugh units.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000100069