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| Registros recuperados: 85 | |
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| Lee,HH; Kim,DH; Lee,KW; Kim,KE; Shin,DE; An,BK. |
| ABSTRACT This study was conducted to investigate the effects of dietary oxidized oil and natural polyphenol antioxidants on laying performances and egg quality of laying hens. A total of two hundred, 61-week-old Lohmann Brown laying hens were divided into five groups, consisting in four replicates of 10 birds each. They were fed one of the five experimental diets (fresh oil only, oxidized oil without antioxidants, oxidized oil with vitamin E 200 ppm, oxidized oil with vitamin E 100 ppm + Cabanin CSDⓇ 100 ppm, oxidized oil with Cabanin CSDⓇ 500 ppm)respectively, for 6 weeks. There were no significant differences in laying performances and egg weight among the treatments. However, egg mass in group fed oxidized oil with vitamin E 100 ppm + Cabanin CSDⓇ 100... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Laying hens; Oxidized oil; Natural antioxidants; Vitamin E; Egg quality. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100319 |
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| Brelaz,KCBTR; Cruz,FGG; Brasil,RJM; Silva,AF; Rufino,JPF; Costa,VR; Viana Filho,GB. |
| ABSTRACT The present study aimed to evaluate increasing levels of fish waste oil in laying hens diets on performance, egg quality, and sensory features of the eggs. 192 Hisex White laying hens with 29 weeks of age were used, with water and food ad libitum. The experimental design was completely randomized consisting of eight treatments corresponding to the inclusion levels of fish waste oil (0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0 and 3.5%) in the diets, with four replicates of six birds each. Data collected were subjected to polynomial regression at 5% of significance. Differences (p<0.05) were observed in feed intake and egg mass. Feed intake increased until 2.50% of fish waste oil in the diets. Differences were not observed (p>0.05) in all variables... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative food; Egg quality; Fish by-product; Flavor; Performance. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000400305 |
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| Freitas,ER; Raquel,DL; Nascimento,AJN; Watanabe,PH; Lopes,IRV. |
| This study aimed at evaluating the total replacement of corn by white or red sorghum and the inclusion or not of pigment in the diet on the performance and yolk color of Japanese quail eggs. In the trial, 210 Japanese quails were distributed according to a completely randomized experimental design consisting of five treatments with six replicates of seven birds each. Treatments consisted of Corn-based diet (C), white sorghum-based diet (WS), white sorghum-based diet + pigment (WSP), red sorghum-based diet (RS), and red sorghum-based diet + pigment (RSP). Feed intake, feed conversion ratio, egg production, and egg mass were no influenced by the treatments. However, paler egg yolks were produced when corn was replaced by sorghum. When red and white sorghum... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Yolk color; Egg production; Egg quality. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000300016 |
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| Berto,DA; Garcia,EA; Móri,C; Faitarone,ABG; Pelícia,K; Molino,AB. |
| This study aimed at evaluating performance and egg quality of Japanese quails fed feeds containing different corn and limestone particle sizes. A total number of 648 birds in the peak of production was distributed in a random complete block experimental design, using a 2x3 factorial arrangement (2 corn particle sizes and 3 limestone particle sizes). Birds were designated to one of two blocks, with six replicates of 18 birds each. Mean geometric diameter (MGD) values used were 0.617mm and 0.723mm (corn fine and coarse particle sizes, respectively), and 0.361mm, 0.721mm, and 0.947mm (limestone fine, intermediate and coarse particle sizes, respectively). The following treatments were applied: T1: fine corn feed, with 100% fine limestone; T2: fine corn feed,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Corn; Egg quality; Geometrical diameter; Lmestone; Performance. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000300005 |
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| Casartelli,EM; Filardi,RS; Junqueira,OM; Laurentiz,AC; Assuena,V; Duarte,KF. |
| An experiment was conduced to evaluate the inclusion of sunflower meal (SBM) in commercial layer diets formulated on total or digestible amino acids basis. One hundred forty-four 41-week-old Lohmann LSL layers were distributed in a completely randomized experimental design in a 2 x 4 factorial arrangement with three replications of six birds each. Treatments consisted of a combination of four SBM inclusion levels SBM(0%, 4%, 8%, and 12%) and feed formulation according two amino acid recommendations (total or digestible). The experimental period was divided into five periods of fourteen days. Performance parameters (egg production, feed intake, feed conversion, egg mass) were evaluated for each period. In the last two days of each period, three eggs per... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg quality; Nutrition; Performance; Poultry. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000300005 |
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| Lee,AR; Niu,KM; Lee,WD; Kothari,D; Kim,SK. |
| ABSTRACT Artemisia annua L. is a widely distributed medicinal plant and well-known for treating malaria due to the artemisinin content. We previously found enhanced antioxidant and antibacterial activities of Lactobacillus plantarum-fermented A. annua dried leaves in vitro. The present study compared the effects of the dietary supplementation of L. plantarum, fermented (FA) or non-fermented (NFA) A. annua on laying performance, egg quality, serum cholesterol, and egg yolk oxidative stability during storage in 40-weeks-old Hy-Line Brown layers. In total, 180 layers were randomly allocated into four treatments for 6 weeks: basal diet (CON), basal diet + 0.5% L. plantarum only (LO), basal diet + 0.5% NFA, and basal diet + 0.5% FA. Each treatment comprised... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artemisia annua L; Egg quality; Lactobacillus plantarum; Laying hens; Malondialdehyde. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000400311 |
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| Mahfuz,S; Song,H; Wei,J; Chen,M; Zhen,D; Nahar,J; Liu,Z. |
| ABSTRACT The possibility of using mushroom (Flammulina velutipes) stem waste (FVW) in layer diets was explored in this study. A total of 180, 40-week-old ISA Brown laying hens were randomly assigned to 5 groups, with 6 replications of 6 birds for each group. Layers were fed a standard basal diet as control; antibiotic (0.05% flavomycin); 2% FVW; 4%FVW; and 6% FVW. No significant differences (p>0.05) were observed on hen daily egg production, egg weight, egg mass, unmarketable eggs, feed intake, feed conversion ratio, and live weight among experimental groups. Haugh unit was found higher (p<0.05) in FVW fed groups than in antibiotic fed groups. Shape index, shell weight, shell thickness, yolk weight, yolk index, yolk weight and albumen weight were not... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apparent nutrient retention; Calcium utilization; Egg quality; Laying performance; Mushroom waste. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000400717 |
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| Fernandes,JIM; Murakami,AE; Sakamoto,MI; Souza,LMG; Malaguido,A; Martins,EN. |
| This trial aimed at evaluating the effect of organic trace mineral supplementation of commercial layer diets on productive performance and egg quality. One-hundred-ninety-two Hy Line W36 white 69-w-old layers were distributed into a completely randomized design with three treatments, and eight replicates, with eight birds each. Treatments consisted of a basal diet supplemented with inorganic trace minerals (R1), and two others experimental diets containing 0.250 ppm (R2) and 0.500 ppm (R3) of an organic source of zinc, manganese, and selenium. Feed intake (g/bird/day), feed conversion ratio (kg/dozen egg and kg/kg egg), egg weight (g), egg production (%), thin and cracked eggshells (%), specific gravity (g/mL), Haugh Units, total egg solids (%), yolk... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg quality; Organic minerals; Productive performance. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000100009 |
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| Abdelghani,E; Xing,W; Li,Y; Shen,D; Alsiddig,MA; Li,C. |
| ABSTRACT To investigate the effects of soy isoflavones (ISF) on the laying performance of Xueshan breeder hens at different phases of the egg production cycle, 32 weeks (wks) old local Chinese breeder hens were assigned to two groups with three replicates (750 hens/replicate) for control and treatment groups. Then every group was divided into three sub-groups following 4, 12, and 20 wks administration of control or ISF diet. General Linear Model procedure was used (2× 3), and treatments were considered of two factors (diets and time) with different levels (control and ISF diets; 4, 12, and 20 wks of diet supply time). Basal diet with 3 mg/kg ISF was used. Performance, egg quality, organs relative weight and cholesterol level were measured at three... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Xueshan hens; Egg quality; Hatching traits; Organs weight; Cholesterol. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000400315 |
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| Pelicia,K; Garcia,EA; Faitarone,ABG; Silva,AP; Berto,DA; Molino,AB; Vercese,F. |
| This experiment studied the effect of four calcium (3.0, 3.5, 4.0, and 4.5%) and four available phosphorus levels (0.25, 0.30, 0.35, and 0.40%) in the diet of semi-heavy commercial layers after molting. Hisex Brown® layers between 90 and 108 weeks of age were distributed in a completely randomized experimental design with a 4x4 factorial arrangement with 16 treatments of five replicates of eight birds each. mortality, egg production, feed intake, egg mass, average egg weight, calcium and phosphorus intake, feed conversion ratio (per dozen eggs and per kg eggs), eggshell percentage and thickness, eggshell strength, eggshell weight per surface area (ESWSA), yolk percentage and color, albumen percentage, albumen and yolk heights, and blood and excreta calcium... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Available phosphorus; Egg quality; Nutritional requirements; Post-molting; Semi-heavy layers. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000100007 |
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| Nassar,FS; El-Komy,EM; Abdou,AM. |
| ABSTRACT An experiment was conducted to evaluate the effect of selection for egg production performance of Cairo L-2 strain, as a local layer strain, after five generations of selection on productivity, ovarian morphology and some egg quality traits versus commercial Lohmann Brown-Lite (LBL) strain. The performance in the 5th generation was evaluated in Cairo L-2 and LBL strains for live body weight at sexual maturity (BWSM), age at sexual maturity (ASM), first egg weight (FEW), ovarian morphology, ovarian follicles number, ovarian weights and diameter, oviduct weight, liver weight, and stroma weight and their percentages to live body weight at sexual maturity for Cairo L-2 and LBL strains. Egg traits at 36 weeks of age including: egg number (EN), egg... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg production; Egg quality; Ovarian morphology; Selection; Sexual maturity. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000400683 |
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| Murakami,AE; Souza,LMG; Sakamoto,MI; Fernandes,JIM. |
| The aim of this experiment was to determine the productive performance and egg quality of Japanese quails fed different types of processed rations (mash, extruded, or pelleted). One hundred and forty-four 18-w-old quails (Coturnix coturnix japonica) were housed in galvanized wire cages and fed a 21.50% CP and 2850 kcal ME/kg basal feed supplied in mash, extruded, or pelleted form. Experimental data were analyzed by ANOVA as a complete randomized design, with three treatments (ration forms) and six replicates of eight quails each. When necessary, means were compared by Tukey's test at 5% significance. Quails fed pelleted feed presented higher egg production, feed intake, and egg mass weight as compared to mash- and extruded-diet-fed birds. Under the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg quality; Processing; Production performance. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000400002 |
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| Sgavioli,S; Filardi,R da S; Praes,MFFM; Assuena,V; Pileggi,J; Andrade,P de C; Boleli,I C; Junqueira,OM. |
| This study was carried out to evaluate the performance and egg quality of laying hens, in their second laying cycle submitted to different forced-molting methods and three environmental temperatures. Six hundred layers were distributed in a completely randomized experimental design with 15 treatments with five replicates of eight birds each, according to 5x3 factorial arrangement (molting methods vs. temperatures). The following forced-molting methods were applied: 90%, 70%, 50% dietary alfalfa inclusion, addition of 2,800 ppm zinc, and feed fasting. Temperatures were: 20 ºC, 27 ºC and 35 ºC. At the end of each period of the second laying cycle, bird performance and egg quality were evaluated. Data were submitted to analysis of variance and means were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg quality; Heat stress; Performance; Welfare. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000300008 |
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| Casartelli,EM; Filardi,RS; Junqueira,OM; Laurentiz,AC; Assuena,V; Duarte,KF. |
| An experiment was conducted to evaluate different commercial laying hen diets formulated based on recommendations for total and digestible amino acids. One hundred and twenty Lohmann LSL commercial laying hens aged 25 weeks were distributed in a completely randomized experimental design involving five replications of six birds in four treatments. Diet formulation on a total amino acid basis followed the recommendations of NRC (1994) and Rostagno et al. (2000), whereas formulation on digestible amino acids basis was according to Rostagno et al. (2000) and Degussa (1997) recommendations. The experimental period was divided into five periods of fourteen days. Performance parameters (egg production, feed intake, feed conversion, egg mass) were evaluated for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg quality; Layers; Nutrition; Performance; Poultry. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000300007 |
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| Pizzolante,CC; Moraes,JE; Kakimoto,SK; Budiño,FEL; Móri,C; Soares,DF; Saccomani,APO. |
| ABSTRACT Bovine meat and bone meal (MBM) has been used as a low-cost protein source in corn- and soybean meal-based poultry diets. However, to date, no studies investigating the effect of the dietary inclusion of MBM on the performance of Japanese quails and on egg production costs were found in literature. In this study, 600 Japanese quails in lay were distributed in a completely randomized experimental design consisting of six treatments (replacement levels of soybean meal by MBM:0, 1, 2, 3, 4, and 5%) with five replicates of 20 birds each to investigate if MBM is a viable alternative to maintain or to improve the live and economic performances of these birds. Treatments consisted of a control diet, based on corn and soybean meal, with no inclusion of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative feedstuff; Performance; Costs; Levels; Egg quality. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000500007 |
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| Saki,AA; Rahmati,MMH; Eskandarlou,A; Zamani,P; Hosseini Siyar,SA. |
| In this study, the effects of the inclusion of different vitamin C levels in the diet on bone mineral density (BMD) and eggshell quality was determined. Four experimental diets with four levels of vitamin C (0, 250, 500 and 750 mg/kg) were used. During the experiment, environmental temperature and humidity were 19±1°C and 55±5% respectively. Correlation coefficients of BMD index and shell characteristics with production parameters were also determined. Egg weight, egg mass, hen-day egg production and eggshell quality were not significantly influenced by vitamin C levels. BMD was not affected by vitamin C utilization. A positive correlation was observed between BMD and egg weight and hen-day egg production. A significant positive correlation between... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone mineralization; Egg quality; Layer hen; Vitamin C. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000300007 |
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| Pereira,DF; Vitorasso,G; Oliveira,SC; Kakimoto,SK; Togashi,CK; Soares,NM. |
| Heat stress limits the productivity of laying hens, as reflected by egg production and egg quality. The present study aimed at showing the correlations between egg quality parameters and environmental variables recorded on the day eggs were laid and on the previous days. Birds were housed in battery cages in a commercial poultry house. Main component analyses were used to verify associations between environmental and production variables, and Pearson's linear correlation tests were used to further investigate those associations. Analyses were carried out separately for to layer strains, Dekalb® White and Hy-Line® w36, and the variables egg weight (g), eggshell weight (g), specific gravity (g/cm³) and eggshell percentage (%) were compared with the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cage; Egg quality; Environment; Layer; Poultry house. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000200002 |
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| Garcia,EA; Mendes,AA; Pizzolante,CC; Saldanha,ESPB; Moreira,J; Mori,C; Pavan,AC. |
| An experiment was conducted at Faculdade de Medicina Veterinária e Zootecnia/Unesp - Botucatu for 168 days to evaluate the effects of protein, Met + Cys and lysine diet levels on egg production and egg quality of laying Japanese quails. Quails with 42 days of age were reared in a completely randomized design. There were 1,944 quails distributed in four replicates of 27 birds per pen, according to a factorial 3x3x2 with three crude protein levels (16, 18 and 20% CP), three Met + Cys levels (0.700; 0.875 and 1.050%) and two lysine levels (1.100 and 1.375%). Birds fed diets with 18 and 20% CP had higher feed intake and egg production than those fed diets with 16% CP. There was significant interaction (p<0.05) between protein and Met + Cys levels on egg... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg production; Egg quality; Lysine; Methionine+Cystine; Protein; Quails. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000100002 |
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| Barbosa Filho,JAD; Silva,MAN; Silva,IJO; Coelho,AAD. |
| The production system using cages is a highly polemical issue in Europe, because of the space restriction imposed to laying hens. It is considered that the cage system might compromise important comfort movements, welfare and egg quality. This study evaluated egg quality and welfare of two strains of hens housed in a conventional system (battery laying cages) or litter system with nest and perches, and submitted to heat stress or comfort conditions. Two groups of 20 birds (10 Hy-line W36 and 10 Hy-line Brown) were submitted to two environmental conditions (26°C and 60% RH or 35°C and 70% RH) and two housing systems (cages or litter) in the early production phase. Egg quality was analyzed based on egg weight, eggshell thickness, specific gravity, and Haugh... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg quality; Environment; Housing systems; Laying hens. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000100003 |
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| Registros recuperados: 85 | |
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