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| Registros recuperados: 18 | |
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| Aranda,MA; Sgavioli,S; Domingues,CHF; Santos,ET; Nääs,IA; Moura,JB; Garcia,RG. |
| ABSTRACT Trade liberalization during the last decades has increased among nations as a result of decreased tariffs. However, during the same period, market agents have created new protection measures to replace such mechanisms in an attempt to promote the domestic economic stability of countries, while expanding and ensuring the trade between nations. Considering that Brazil is the second largest broiler producer and chicken-meat exporter worldwide, the present study proposed to analyze the main barriers imposed on Brazilian chicken meat imports by the ten major importing countries. This is a documentary research with primary and secondary data, of a descriptive-exploratory nature, under a qualitative approach. Semi-structured questionnaires including... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Poultry production; International trade; Exports; Protectionism. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000200312 |
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| Colet,S; Garcia,RG; Almeida Paz,ICL; Caldara,FR; Borille,R; Royer,AFB; Nääs,IA; Sgavioli,S. |
| ABSTRACTVitamin D is added to broiler diets to supply its physiological requirement for bone formation. The fast growth rate of modern broilers is often associated with poor bone formation. Increasing vitamin D supplementation levels and the use of more available sources have applied to try to prevent leg problems, to increase carcass yield, and to improve the performance of broilers. The present study evaluated three vitamin D supplementation levels (1) 3,500 IU (control); (2) control + 1,954 IU of 25-hydroxycholecalciferol; and (3) control + 3,500 IU of vitamin D in broiler diets supplied up to 21 days of age. The objective was to investigate if the vitamin D levels above the recommendations could reduce leg problems in broilers. In this experiment, a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gait score; Tibial dyschondroplasia; Valgus; Varus; Pododermatitis.. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000300325 |
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| Sgavioli,S; Filardi,R da S; Praes,M F F M; Domingues,C H de F; Pileggi,J; Andrade,P de C; Boleli,I C; Junqueira,O M. |
| The objective of the present experiment was to compare the performance, egg quality and organ morphometrics of commercial layers submitted to alternative forced molting methods using dietary fibers. The experimental period included the phases of molting, rest, and second laying cycle (six periods of 28 days each). In the trial, 320 commercial Isa Brown layers with 72 weeks of age were distributed, according to a completely randomized experimental design into five treatments with eight replicates of eight birds each, totaling 40 experimental units. Molting was induced by feeding diets with the inclusion of alfalfa or soybean husks at 80% and 60% or feed fasting. Treatments were applied for 14 days. Performance and egg quality parameters were evaluated for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alfalfa; Soybean husks; Egg production; Morphometrics. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000400011 |
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| Assuena,V; Junqueira,OM; Duarte,KF; Laurentiz,AC; Filardi,RS; Sgavioli,S. |
| This experiment was carried out to evaluate the effects of the inclusion of different levels of phytase on broiler performance, bone densitometry, and phosphorus and nitrogen excretion. Nine hundred and sixty one-day old broilers, 50% males and 50% females, were distributed in a completely randomized experimental design into five treatments and six replicates 32 birds each. The treatments consisted of a control diet and four diets with the addition 25, 50, 75, and 100 g/ ton of phytase (250, 500, 750 and 1000 FTU of phytase/kg fed). Diets were formulated to contain equal nutritional levels, and considered the phytase product nutritional levels. In general, the addition of phytase resulted in a linear decrease in broiler performance. However, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone mineralization; Feed conversion ratio; Feed intake; Weight gain. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000100005 |
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| Sgavioli,S; Filardi,R da S; Praes,M F F M; Domingues,C H de F; Andrade,P de C; Pileggi,J; Boleli,I C; Junqueira,O M. |
| An experiment was conducted to evaluate the biometrics of organs (ovary, oviduct, liver, proventriculus and gizzard) of laying hens submitted to different forced-molting methods of molt and maintained at three different temperature. Organs were evaluated after molting and resting period. Six hundred birds were distributed according to a completely randomized experimental design in a 5x3 factorial arrangement (forced-molting methods x environmental temperatures) into 15 treatments with 5 replicates of 8 birds each. The molting methods applied were the dietary inclusion of 90%, 70%, 50% of alfalfa, 2,800 ppm zinc oxide, or total feed restriction. Birds were kept at ±20 ºC, ±27 ºC, or ±35 ºC. Data were submitted to analysis of variance and means were compared... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heat stress; Ovary; Feed restriction; Welfare. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000300011 |
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| Sgavioli,S; Santos,ET; Domingues,CHF; Quadros,TCO; Castiblanco,DMC; Andrade-Garcia,GM; Amoroso,L; Nääs,IA; Garcia,RG; Baraldi-Artoni,SM. |
| ABSTRACT Adequate environmental temperature control is essential for incubation efficiency. Layer breeder eggs (n=360) were weighed and distributed in a completely randomized experimental design with two treatments, consisting of two incubation temperatures (T1=37.5 °C, control; and T2=39.0 °C, hot), with two incubators per temperature, and 90 eggs per incubator, totaling 360 eggs. Hatchability, embryo mortality, and chick cloacal and body surface temperatures were not affected by incubation temperature. Eggs incubated at the hot temperature presented greater egg mass loss and higher eggshell conductance than those incubated at the control temperature. Layer chicks derived from eggs incubated at control temperature showed greater absolute weight, yolk-free... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body weight; Cloacal temperature; Conductance; Hatchability; Loss of mass. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000600041 |
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| Sgavioli,S; Domingues,CHF; Santos,ET; Quadros,TCO de; Borges,LL; Garcia,RG; Louzada,MJQL; Boleli,IC. |
| Abstract This experiment was conducted to evaluate the effect of in-ovo ascorbic acid (AA) injection on the bone development of broilers submitted to heat stress during incubation and rearing. One thousand (1,000) Cobb(r)fertile broiler eggs were randomly distributed according to the weight into five incubators, with 200 eggs per incubator. The incubation treatments were: eggs not injected with AA and incubated at 37.5°C; eggs not injected with AA and incubated at 39°C; and eggs injected with 6 µg AA/100 µL water prior to incubation and incubated at 39ºC. The hatched birds were reared at three different house temperatures: cold, thermoneutral, or and hot. The high incubation temperature negatively influenced broilers' bone characteristics. The femur of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ash; Mineral density; Femoral bone strength; Tibia; Vitamin C. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000100153 |
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| Nunes,KC; Garcia,RG; Nääs,IA; Eyng,C; Caldara,FR; Sgavioli,S; Roriz,BC; Ayala,CM. |
| ABSTRACT Time of exposure and light intensity rearing house may affect the performance and egg quality of laying quails. This research aimed at evaluating the live performance, egg quality, biometry of the reproductive system, and the gastrointestinal tract of Japanese quails (Coturnix coturnix japonica) exposed to artificial light-emitting diodes (LED) of different colors in comparison with fluorescent lamps. A total of 240 Japanese quails were distributed in completely randomized experimental design with four treatments (fluorescent lamp, and green, red, or blue LED lamps) with six replicates of 10 birds each. Average egg weight and eggshell thickness were different (p<0.05) when LED bulbs were compared with fluorescent lamps. The egg weight of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coturnix coturnix japonica; Light-emitting diode; Fluorescent light bulb; Egg quality. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000500051 |
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| Sgavioli,S; Matos Júnior,JB; Borges,LL; Praes,MFFM; Morita,VS; Zanirato,GL; Garcia,RG; Boleli,IC. |
| Dose-dependent positive effects on hatchability and hatchling weight have been attributed to ascorbic acid (AA) when eggs were submitted or not to intermittent heat stress during incubation. Fertile breeder (Cobb(r)) eggs were used to determine if the pre-incubation injection of AA in ovo affects the incubation and hatchling quality of egg incubated under thermoneutral or intermittent heat stress conditions. Eggs were not injected or injected with 0, 2,4, or 6% AA/100µL water and incubated at continuous thermoneutral (37.5ºC) or hot (39.0ºC) temperature. Eggshell temperature (EST) increased in the second half of the incubation period in all experimental groups. The EST of non-injected eggs and of those injected with water was higher when incubated at 39°C... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conductance; Hatchability; Egg mass loss; Hatchling weight; Eggshell temperature. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000200181 |
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| Praes,MFFM; Junqueira,OM; Pereira,AA; Filardi,RS; Duarte,KF; Sgavioli,S; Alva,JCR; Domingues,CHF. |
| This study aimed at evaluating diets containing different fiber sources and two crude protein levels on the performance, egg quality, and nitrogen metabolism of commercial layers. In total, 392 48-wk-old Isa Brown layers were distributed according to a completely randomized experimental design in a 3x2+1 (control) factorial arrangement, resulting in seven treatments with seven replicates of eight birds each. Treatments consisted of three fiber feedstuffs (cottonseed hulls, soybean hulls, and rice hulls) and two dietary crude protein levels (12% and 16%). Cottonseed hulls associated with the high crude protein level (16%) resulted in the worst feed conversion ratio per dozen eggs. Diets with 16% crude protein resulted in the highest feed intake, egg... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rice hulls; Cottonseed hulls; Soybean hulls; Crude protein; Egg production. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000200006 |
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| Domingues,C H de F; Sgavioli,S; Praes,M F F M; Duarte,K F; Castiblanco,D M C; Santos,E T; Alva,J C R; Junqueira,O M. |
| One experiment was conducted to evaluate the effect of using different lysine and methionine + cystine levels on body weight recovery, performance, and egg quality of laying hens during the post-molting period. In this trial, 432 Isa Brown layers, with 72 weeks of age, were distributed in 54 cages according to a completely randomized design with six treatments and nine replicates of eight birds each. During the resting period, six diets with different digestible lysine and methionine + cystine levels were used, as follows: 0.48% digestible lysine and 0.43% methionine + cystine; 0.48% digestible lysine and 0.47% methionine + cystine; 0.48% digestible lysine and 0.52% methionine + cystine; 0.56% digestible lysine and 0.50% methionine + cystine; 0.56%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sulfur amino acids; Amino acid ratios; Forced molting; Morphometrics. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000300005 |
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| Garcia,RG; Roriz,BC; Nääs,IA; Lima,NDS; Sgavioli,S; Caldara,FR. |
| ABSTRACT Intensive broiler production requires large flock density, which compromises litter quality and increases the prevalence of footpad lesions. The present study aimed at comparing the incidence of footpad dermatitis of broilers reared in two different rearing environments. Data from two broiler houses were recorded during 42 d. Air temperature and relative humidity; litter moisture, pH, and temperature; footpad surface temperature; and the incidence of footpad lesions was investigated. Litter quality was analyzed in a 2 x 4 factorial arrangement, with two house types (dark house or open-sided house) and four rearing phases (21, 28, 35, and 42 d of growth), with four replicates per treatment using 12 replicates. Four replicates were used for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Litter quality; Rearing environment; Broiler management; Footpad dermatitis. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100301 |
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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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| Praes,MFFM; Lucas Junior,J; Duarte,KF; Sorbara,JOB; Matos Junior,JB; Sgavioli,S; Domingues,CHF; Garcia,RG; Hermes,RG. |
| Abstract This study evaluated the effects of the dietary inclusion of an enzyme blend and a direct-fed microbials in broiler diets on litter production and quality. In total, 900 Cobb 500(r) broiler chicks were distributed according to a completely randomized design into 4 treatments and 9 replicates of 25 birds each. Broilers were reared from 1 to 42 days of age. The treatments consisted of the following diets: NC: negative control; DFM: NC + 500 ppm of direct-fed microbials product (DFM), containing Bacillus subtilis and Bacillus licheniformis; ENZ: diet formulated with an enzyme blend (20 ppm phytase, 200 ppm protease and 200 ppm of xylanase); DFM+E: ENZ + DFM. Birds and litter were weighed at the start and end of the rearing period, for litter... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Waste ratio; Total and thermotolerant coliforms; Phosphorus; Nitrogen; Potassium. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000100125 |
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| Praes,MFFM; Pereira,AA; Sgavioli,S; Duarte,KF; Alva,JCR; Domingues,CH de F; Puzzoti,MM; Junqueira,OM. |
| The objective of the presente study was to evaluate the effects on different dietary fiber sources and crude protein levels on the intestinal morphometry of commercial layers. Isa Brown® layers with 48 weeks of age were distributed in a completely randomized experimental design with a 3 x 2 + 1 factorial arrangement, resulting in seven treatments with seven replicates of eight birds each. At the end of the fourth experimental period (28 days each), birds were 64 weeks of age and were randomly chosen (two birds per replicate, totaling 14 birds per treatment), weighed and sacrificed by neck dislocation. Their intestine was dissected and the duodenum, jejunum and ileum were collected for subsequent analysis of intestinal morphometry. Treatments consisted of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crude protein; Fibers; Intestinal development. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000300004 |
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| Roriz,BC; Sgavioli,S; Garcia,RG; Nääs,IA; Domingues,CHF; Caldara,FR; Rombola,LG; Ayla,CM; Bernnecke,K. |
| ABSTRACT Long storage periods may increase embryo mortality. The objective of this study was to evaluate the effects of storage period on the weight loss, eggshell surface temperature, hatchability, and embryonic mortality of Japanese quail eggs. Two hundred fertile eggs were collected from a flock of 30-week-old Japanese quails (Coturnix coturnix japonica). The eggs were collected for 10 consecutive days after lay, and immediately incubated. A completely randomized experimental design with 10 treatments, corresponding to the number of days eggs were stored between egg collection and setting, with 20 replicates each, was applied. Egg weight loss increased with storage period duration, starting on day 6 (2.1%, on average) and reached 3.26%, on average, in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Embryo; Hatchability; Incubation; Laying; Temperature. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000400589 |
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| Domingues,C H de F; Sgavioli,S; Praes,M F F M; Castiblanco,D M C; Marchizeli,P C A; Pereira,A A; Duarte,K F; Junqueira,O M. |
| An experiment was carried out to evaluate the performance, egg quality and morphometry of the reproductive tract, liver, pancreas and tongue of laying hens submitted to different molting methods. Two hundred and eighty eight 72-week-old Isa brown layers were distributed according to a completely randomized design with six treatments (molting methods) and six replicates of eight birds each. Layers were fed diets containing 3000 ppm zinc oxide, 60 ppm or 120 ppm nicarbazin, 30 ppm or 60 ppm salinomycin, or were submitted to feed fasting. Data were submitted to analysis of variance and means were compared by the test of Tukey at 5% probability level. Molting methods alternative to feed fasting were effective to induce molting in layer and provided good... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Food restriction; Performance; Egg quality; Morphometry. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000200003 |
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| Royer,AFB; Garcia,RG; Borille,R; Santana,MR; Nääs,IA; Caldara,FR; Almeida Paz,ICL; Zeviani,WM; Alves,FMS; Sgavioli,S; Mariano,WS. |
| ABSTRACTThe pre-slaughter period is considered critical in broiler production. Several factors contribute to increase the birds' stress, such as handling, harvesting, and transportation, negatively affecting their welfare. This study aimed at evaluating the addition of lemon grass (Cymbopogon citratusStapf) to the drinking water of broilers during the pre-slaughter period on their behavior, blood cortisol, and surface temperature. The study was carried out at the experimental farm of the Federal University of Grande Dourados (UFGD), Dourados, MS, Brazil. In total, 2594 broilers were distributed according to a completely randomized experimental design, in a 3x2x2 factorial arrangement, with four replicates per treatment. Treatments consisted of three... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Behavior; Blood cortisol; Phytotherapy; Body surface temperature. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000300301 |
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| Registros recuperados: 18 | |
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