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| Registros recuperados: 13 | |
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| Moraes,SS; Pereira,AA; Almeida,VVS; Lima Júnior,DM; Silva,WA; Mariz,CBL; Vieira,GMN; Silva,WA; Moreno,GMB. |
| ABSTRACT Currently, agro-industrial by-products have increasingly been used in animal feeding, as they constitute an alternative source of nutrients for the animal diet and a way to simultaneously reduce environmental pollution. The objective of this study was to examine increasing levels of inclusion of coconut cake in Japanese quail diets in the laying phase on their production performance and egg quality. A total of 360 Japanese quails were allotted to eight treatments with nine replicates and eight birds per experimental unit, in a randomized-block design. Five diets were formulated: a diet without inclusion of the by-product; and diets containing 3, 6, 9, and 12% coconut cake. The experiment lasted 63 days, with evaluations occurring at every 21 days.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative feed; Poultry; Production performance. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000100306 |
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| Fülber, Vanice Marli; UEM -Maringá; Mendez, Lauro Daniel Vargas; UEM - Maringá; Braccini, Graciela Lucca; UEM - Maringá; Barrero, Nelson Mauricio Lopera; Digmeyer, Melanye; Ribeiro, Ricardo Pereira; UEM - Maringá. |
| O presente trabalho objetivou avaliar o desempenho produtivo de três linhagens de tilápia do Nilo (O. niloticus) na fase inicial e de crescimento, em diferentes densidades de estocagem. As linhagens estudadas foram Bouaké, Chitralada e GIFT. Foram utilizadas caixas d’água de 500 L, testando-se nove tratamentos e três repetições. Os parâmetros físicos e químicos da água mantiveram condições normais de cultivo para a espécie nas duas fases. Na fase inicial, ao se comparar entre as densidades dentro da mesma linhagem, não foram identificadas diferenças na Chitralada. Entretanto, as linhagens Bouaké e GIFT refletiram sensibilidade ao aumento das densidades de estocagem. Na fase de crescimento, os resultados obtidos para os parâmetros de desempenho médio final... |
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Palavras-chave: Production performance; Stocking density; GIFT; Oreochromis niloticus; Nile tilapia desempenho produtivo; Densidade de estocagem; GIFT; Oreochromis niloticus; Tilápia do Nilo. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/464 |
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| Rafeeq,M; Rashid,N; Awan,MA; Tariq,MM; Abbas,F; Ahmed,Z; Taj,I. |
| White leghorn layer (n=2740), with 85weeksof age, were submitted to forced molting by fasting for 13 days and changes in body characteristics and subsequent laying performance during second laying cycle were evaluated. Live body weight (LBW),ovary weight (OW), oviduct weight (OvW) and oviduct length (OvL) were measured before and after fasting. Post-fasting restricted feeding was applied, initially feeding crushed corn with added 2% Ca for 20 days and thereafter layer crumble feed was offered. Layers lost 632.16g (36%) of their LBW and significant reductions of 45.32, 47.53 and 54% were observed in post-fasting/molt OW, OvW and OvL, respectively (p<0.05). Resting period was 49 days and birds consumed 4.79kg feed during resting period. Egg production... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Layer; Force molting; Body characteristics; Production performance. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000400009 |
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| Gao,J; Liu,W; Geng,B; Lei,Q; Han,H; Zhou,Y; Liu,J; Cao,D; Li,H; Li,F. |
| ABSTRACT The effects of plant essential oil (PEO) on the production performance and immune function of laying hens were evaluated to provide theoretical basis for promoting the natural plant extracts. Eight thousand 1-day-old healthy laying hens were randomly divided into a control group or PEO group, with four replicates per treatment and 1000 hens per replicate. The PEO diet was supplemented with 3g/kg plant extract. Diets were fed for 56 days. The tibia length and keel length were detected on an empty stomach at the end of the trial. Blood samples were collected on the 28th and 56th days to detect the level of C3, C4, IL-1, IL-2, IL-17 and immunoglobulin in the serum. The results showed that, compared with the control, PEO supplementation significantly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Laying hens; Plant essential oil; Production performance; Immune function. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000300301 |
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| Ahmad,S; Khalique,A; Pasha,TN; Mehmood,S; Ahmad,S Sohail; Khan,AM; Hussain,K. |
| ABSTRACT Phytogenic feed additives have been increasingly used in the last decade, and several plants and their metabolites have been investigated for the said purpose. In this context, present study aimed at evaluating the effects of Moringa oleifera as feed additive on layer performance, and egg bioactive compound levels and nutrient profile. HyLine W36 layers (n=200), 50 weeks of age, were randomly distributed in four treatments with five replicates of ten birds each. Four isocaloric (2725 kcal/kg) and isonitrogenous (CP 16%) diets were formulated and supplemented with 0, 0.5, 1.0, or 1.5% (w/w) of dried Moringa oleifera leaf powder (MLM). The results showed positive effects of MLM on egg production, egg mass, and feed conversion ratio, but negative... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Β-carotene; Moringa leaf; Quercetin; Production performance; Serum biochemistry. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000200325 |
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| Watanabe,André Luiz; Viegas,Elisabete Maria Macedo; Gonçalves,Lígia Uribe. |
| This study was conducted to evaluate the inclusion of two levels (2.5 e 5.0%) of dried yeast (Saccharomyces cerevisiae) and its by-products, disrupted yeast cells and yeast cell wall in diets for juveniles of pacu (Piaractus mesopotamicus). Production performance, body and plasmatic composition indexes were evaluated. Seven isoproteic (26% digestible protein) and isoenergetic (3.100 kcal digestible energy) diets were formulated containing increased levels of each ingredient. The diets were supplied for 86 days, "ad libitum". Yeast and by-products increase feed efficiency and protein use, when compared to the control diet. Carcass composition and plasmatic (glucose, cortisol, uric acid, urea and plasmatic protein) levels are not affected by the test... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Piaractus mesopotamicus; Pre-biotic; Production performance; Saccharomyces cerevisiae; Yeast by-products. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000300001 |
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| Lourençoni,Dian; Abreu,Paulo G. de; Yanagi Junior,Tadayuki; Campos,Alessandro T.; Yanagi,Silvia de N. M.. |
| ABSTRACT The selection of the type of fuzzy systems pertinence curve allows a better representation of the mathematical model and a smaller simulation error. We aimed to study the effect of pertinence curves in fuzzy modeling of broiler performance, created in different production systems. For the development and testing of fuzzy models, three commercial aviaries (conventional, tunnel with negative pressure, and dark house) were evaluated over one year, totaling six lots per system. For the development of the model, the input variables were enthalpy in each rearing phase (initial: phases 1, 2, and 3; growth: phase 4; and final: phase 5) and the output variables were feed intake (FE), weight gain (GP), feed conversion (FE), and the productive efficiency... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Poultry farming; Production performance; Artificial intelligence; Fuzzy logic. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000300265 |
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| Martinez-Cordero, Francisco Javier; Leung, PingSun. |
| Sustainability in operations is a key consideration when discussing aquaculture’s current and future role in providing food and increasing coastal and rural employment and incomes, among other social benefits. An important problem from the economics point of view is how the economics point of view is how the externalities generated by aquaculture and those that the industry suffers are internalized. This paper extends the analysis reported in Martinez-Cordero and leung (2004) for a group of semi-intensive shrimp farms in Mexico. Modifications to the traditional Total Factor Productivity (TFP) and Technical Efficiency (TE) indicators are carried out in order to incorporate in the evaluation the environmental effects of aquacultural activities. In a... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Externalities; Production performance; Shrimp farming; TFP; Efficiency; Livestock Production/Industries. |
| Ano: 2005 |
URL: http://purl.umn.edu/56006 |
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| Wang,Y; Yang,Q; Lin,P; Li,C; Lu,Y; Daijun,S. |
| ABSTRACT This study was conducted to evaluate the influence of supplementing tea polyphenols (TP) in diet of laying hens on yolk cholesterol content and production performance. A total of 1800 Lohmann laying hens aged 48 weeks were randomly allocated to 6 groups. Each group consisted of 6 replicates with 50 layers. The feeding experiment was 4 weeks including one-week acclimatization. Layers fed basal diet supplemented with 0, 150, 200, 250, 300 and 350 mg TP/kg diet, respectively. The results showed that average daily feed intake (ADFI), feed conversion ratio (FCR), average egg weight (AEW), laying rate and the indicators of egg quality were not significantly affected by the diet supplemented with 300 mg/kg TP (p>0.05). However, yolk cholesterol... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant; Laying hens; Production performance; Tea polyphenols; Yolk cholesterol content. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2021000200302 |
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| Zhang,XX; Ran,JS; Lian,T; Li,ZQ; Yang,CW; Jiang,XS; Du,HR; Cui,ZF; Liu,YP. |
| ABSTRACT Myostatin (MSTN) is a negative regulator of skeletal muscle growth. In order to investigate whether there is a correlation between MSTN polymorphisms and chicken production performance, in this study, single nucleotide polymorphisms (SNPs) in MSTN gene were examined across 180 Daheng broilers by direct sequencing of PCR product, and the correlations between the genotype and body weight at the age of 1-10 weeks and carcass traits at the age of 73 day were analyzed. Five SNPs (rs313622770, rs313744840, rs316247861, rs314431084, rs317126751) of MSTN gene were identified across Daheng broiler samples, and four haplotypes were reconstructed based on the five SNPs. Results of association analysis showed that four (rs313622770, rs313744840, rs316247861... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Association analysis; Chicken; Production performance; MSTN; SNP. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300319 |
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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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| Registros recuperados: 13 | |
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