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| Registros recuperados: 703 | |
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| Leenstra, Ferry; Maurer, Veronika; Bestman, Monique; van Sambeek, Frans; Zeltner, Esther; van Niekerk, Thea; Galea, Fabien; Reuvekamp, Berry. |
| Since 1960 the majority of commercial layers are housed in cages. Non-cage housing started to appear again from 1980 onwards and increases in importance. It is questionable if birds bred to perform in cages are also suited for free range housing. We examined the performance of current genotypes in free range systems (organic and conventional) by an inventory among laying hen farmers in Switzerland, The Netherlands and France (325 flocks on 275 farms) and organised workshops with farmers to discuss their ideas on breeding goals (‘the ideal hen’) for free range systems. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding and genetics; Health and welfare; Poultry. |
| Ano: 2011 |
URL: http://orgprints.org/20558/1/leenstra-etal-2011-LowInputBreeds-Edinburgh_layers.pdf |
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| Leenstra, Ferry; Maurer, Veronika; Bestman, Monique; Zeltner, Esther; van Niekerk, Thea; Galea, Fabien; Reuvekamp, Berry. |
| In poultry, breeding is carried out by a very limited number of international operating breeding companies. For laying hens two companies dominate the market. Laying hens are in general 4-way crosses. Since 1960 the majority of commercial layers are bred and housed in cages. Non-cage housing started to appear again from 1980 onwards and increases slowly in importance, at first in Europe, but recently also in North America. It is questionable if birds bred to perform in cages are also suited for free range housing. In this project we examine the performance of current genotypes in free range systems (organic and conventional), and if and how an improved genotype for free range housing can be developed. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding and genetics; Poultry. |
| Ano: 2011 |
URL: http://orgprints.org/18709/1/Leenstra%2DPoultry%2Daims.pdf |
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| Horsted, K.; Allesen-Holm, B.H.; Hermansen, J.E.; Kongsted, A.G.. |
| BACKGROUND: Breast meat from broilers produced in very different production systems may vary considerable in sensory profile, which may affect consumer interests. In this study the aim was to evaluate differences in the sensory profiles of breast meat from five broiler products: two conventional standard products (A and B) and three organic niche genotypes (I657, L40 and K8) reared in an apple orchard. RESULTS: Thirteen out of 22 sensory attributes differed significantly between the products. The aroma attributes ‘chicken’, ‘bouillon’ and ‘fat’ scored highest and the ‘iron/liver’ aroma lowest for the niche products. The meat was more ‘tender’, ‘short’ and ‘crumbly’ and less ‘hard’ and ‘stringy’ in the standard products than in one or more of the niche... |
| Tipo: Journal paper |
Palavras-chave: Poultry. |
| Ano: 2012 |
URL: http://orgprints.org/21614/4/21614.pdf |
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| Nascimento,ER do; Polo,P de A; Pereira,VL de A; Barreto,ML; Nascimento,M da GF do; Zuanaze,MAF; Corrêa,ARA; Silva,R de CF. |
| False positive serologic reactions and difficulties in the diagnosis of Mycoplasma gallisepticum (MG) in chickens have increased lately as a result of infection by low virulent MG strains and the use of live MG vaccines in poultry. The objective of this study was to evaluate the serologic responses of SPF chickens exposed to the three commercially available live MG vaccines, and one low virulent MG strain (MG-70), contributing to the diagnosis and monitoring of MG infection in birds. Six groups of SPF chickens were used. The control group was not infected nor challenged; one group was infected with the low virulent strain MG-70 (MG-70); three groups were immunized and named after the MG vaccine used, i.e., MG-6/85, MG-ts11, and MG-F; and finally one group... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycoplasma; Poultry; Serology; Vaccination. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000100007 |
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| Rodriguez,JM; Rondón,IS; Verjan,N. |
| ABSTRACT Salmonella enterica is a large group of Gram-negative bacteria responsible for a number of foodborne infections associated with the consumption of contaminated poultry products. The hygienic status of raw chicken meat marketed at Ibague, Tolima, Colombia, is currently unknown. To address this issue, a cross-sectional study was conducted to estimate the prevalence of Salmonella spp., in raw chicken marketed at different outlets in this city. Salmonella spp. was isolated by standard microbiological methods, followed by biochemical, serological, and molecular confirmation. Additionally, risk factors associated with the presence of the bacteria were identified. The prevalence of Salmonella in raw chicken was 17.41% (47/270), and 14 different serotypes... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Isolation; Poultry; Prevalence; Risk factors; Serotyping. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000400545 |
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| Horsted, Klaus; Hammershøj, Marianne; Hermansen, John E.. |
| Two experiments were conducted to study the effects of different forage crops on productivity and some egg quality parameters of small flocks of organic laying hens fed whole wheat or concentrates. Each experiment was carried out in a split plot design with two different forage crops and two types of supplementary feed (typical concentrate for organic layers versus whole wheat) with three replications. In the first experiment the tested forage crops were of a well-established grass/clover and a mixture of forbs (Fagopyrum esculentum, Phacelia tanacetifolia and Linum usitatissimum). In the second experiment the tested forage crops were a well-established grass/clover and chicory (Cichorium intybus cv. Grassland Puna). The results on productivity and egg... |
| Tipo: Journal paper |
Palavras-chave: Poultry. |
| Ano: 2006 |
URL: http://orgprints.org/9132/1/9132.pdf |
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| Steenfeldt, S.. |
| High-quality silage can provide nutrients for the hen and encourage natural foraging behaviour, thus reducing the risk for feather pecking. Growing protein-rich silage helps increase self-sufficiency and improve the crop rotation of the organic poultry farms. Practical recommendation • Choose the silage type(s) that provides the best yield and quality, depending on soil type and weather con-ditions. • The silage has to be finely chopped. • Silage generally has to be preserved under proper conditions to optimize the fermentation process. • Analyse the protein content of the silage and other nutrients if possible. • Avoid silage with anti-nutritional factors. • Investing in an automatic feeding system (robot) is recommended for larger flocks to... |
| Tipo: Practice tool |
Palavras-chave: Feeding and growth; Poultry. |
| Ano: 2019 |
URL: http://orgprints.org/35470/1/steenfeldt-2019-silage-feeding.pdf |
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| Weltin, Jessica; Sundrum, Albert; Bellof, Gerhard. |
| In der Gruppe der kleinkörnigen Leguminosen weisen Luzerne und Weißklee die höchsten Protein- und Aminosäurengehalte (Lysin, Methionin) sowie die höchsten Erträge pro ha auf. Luzerne, die in einem sehr frühen Vegetationsstadium geworben wurde, kann einen Proteingehalt von 300 g/kg TS, einen Lysingehalt von 18 g/kg TS und einen Methioningehalt von 5g/kg TS erreichen. Ein solches Material kann verlustarm konserviert werden, wenn die Prinzipien des Silierens konsequent angewendet werden. Ein zusätzliches Extrudieren des angewelkten Materials verbessert den Siliererfolg nicht. Bezogen auf die täglich Gesamttrockenmasseaufnahme nehmen Broiler große Mengen Luzernesilage auf: 10-20 % in der Aufzuchtphase und 30 % in der Mastphase. Um den niedrigen ME-Gehalt der... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Production systems; Feeding and growth; Poultry. |
| Ano: 2015 |
URL: http://orgprints.org/27189/1/27189_weltin.pdf |
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| Maurer, Veronika; Perler, Erika. |
| Control of the poultry red mite Dermanyssus gallinae is a challenge for organic as well as conventional egg producers. In organic agriculture, control should be attempted by mechanically acting substances (e.g. oils or diatomaceous earth), before acaricides are applied. Diatomaceous earth (DE) without acaricides was at least as effective as DE supplemented with pyrethrum or essential oils and a liquid formulation of silica in vitro. In on farm experiments, DE was effective during a limited period only, whereas the liquid formulation had a very good residual effect over several weeks. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Poultry; Health and welfare. |
| Ano: 2006 |
URL: http://orgprints.org/7274/1/Maurer_Dermanyssus_Odense.pdf |
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| Santos,ANA; Cruz,FGG; Oliveira Filho,PA; Farias,TM; Rufino,JPF; Viana Filho,GB. |
| ABSTRACT The present study aimed to determine the ideal sodium levels for muscovy ducks in housing. Two hundred and forty muscovy ducks of creole lineage were used, distributed in boxes with water and food ad libitum. The experimental design was completely randomized, where treatments were constituted by six nutritional plans (initial, growth and termination) with different sodium levels, and four replicates of 10 muscovy ducks each. The birds had weekly performance evaluations, and after 90 days, eight birds (four males and four females) in each treatment were slaughtered for evaluation of carcass traits. Data collected were subjected to Tukey test at 5% of significance. Differences were observed (p<0.05) in performance (feed intake and feed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carcass traits; Mineral; Performance; Poultry; Waterfowl. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000100300 |
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| Knöbl,Terezinha; Gomes,Tânia Aparecida Tardelli; Vieira,Mônica Aparecida Midolli; Ferreira,Fernando; Bottino,José Américo; Ferreira,Antônio José Piantino. |
| Three hundred and fifty strains of E. coli isolated from septicemic poultry from seven states of Brazil were examined for presence of nine adhesion-encoding genes, hemagglutination and adherence to chicken tracheal cells (in vitro). Analysis of the strains by colony hybridization tests demonstrated that 93.7% of the isolates were fim +, 17% pap+ and 5.7% were sfa+. The mannose sensitive fimbriae occur with similar frequency in APEC isolated from all Brazilians states, while significant differences among pap and sfa genes distributions were observed. The results showed that 0.85% and 0.28% of APEC were positive for genes that encoded enteroaggregative adhesins and EPEC adherence factor, respectively. None of APEC was positive for DA, afa, Bfp and Eae... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: APEC; Escherichia coli; Adhesins; Colibacillosis; Poultry. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000300033 |
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| Freitas Neto,OC de; Penha Filho,RAC; Barrow,P; Berchieri Junior,A. |
| Salmonellosis is a worldwide disease caused by bacteria of the genus Salmonella. Currently, there are over 2,500 identified serovars of Salmonella. A reduced number of these serovars, about eighty, are implicated in most animals and human diseases. Most cases of salmonellosis in humans are associated with the consumption of contaminated food products such as beef, pork, poultry meat, eggs, vegetables, juices and other kind of foods. It may also be associated with the contact between humans and infected pet animals. Therefore, the chain of human salmonellosis is very complex and in most cases the origin of the infection is difficult to establish. The use of antimicrobial agents to treat and to prevent bacterial infections in humans and animals, as well as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antimicrobial resistance; Beef; Food; Pork; Poultry; Salmonella spp; Vegetables. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000100001 |
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| Gopinger,E; Krabbe,EL; Avila,VS De; Surek,D; Lopes,LS. |
| ABSTRACT The objective of this study was to evaluate different strategies for the oxidative stabilization of rice bran (RB) in the diet of broiler chickens using natural antioxidant additives, synthetic antioxidant additives and heat treatment on performance, breast meat quality and liver fat content and the nutrient digestibility coefficients. Furthermore, the study aimed to evaluate the effects of heat treatment and antioxidants, antioxidant additive treatments, without antioxidants, natural, and synthetic, and to three heat treatments, without heat, dry-heat and moist-heat, after the rice bran was stored for 90 days and then incorporated into the experimental diets. 1080 broilers were arranged in a 3 x 3-factorial randomized design with 10 replicates... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative feedstuff; Meat quality; Poultry; Oxidation; Digestibility. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000400321 |
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| Registros recuperados: 703 | |
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