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| Registros recuperados: 17 | |
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| Vieira,MM; Kessler,AM; Ribeiro,AML; Silva,ICM; Kunrath,MA. |
| In this study, Hisex Brown layers in lay were evaluated between 40 and 44 weeks of age to evaluate the inclusion of bacterial phytase (Ph) and sodium butyrate (SB) to diets containing different calcium levels (CaL). Performance, average egg weight and eggshell percentage, in addition to nutrient metabolizability and Ca and P balance were evaluated for 28 days. Birds were distributed according to a completely randomized experimental design with a 3x2x2 factorial arrangement, with three calcium levels (2.8, 3.3, 3.8%); the addition or not of phytase (500PhU/kg) and the addition or not of sodium butyrate (20mEq/kg), composing 12 treatments with eight replicates of one bird each. There was no additive effect of phytase or SB on the evaluated responses. Feed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial phytase; Brown layers; Ca and P; Metabolizability; Organic acids. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000200011 |
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| Reginatto,MF; Ribeiro,AM; Penz Jr,AM; Kessler,AM; Krabbe,EL. |
| Dois experimentos (EXP) avaliaram os efeitos da redução de proteína bruta (PB) em dietas com alta (A) (3.200kcal EM/kg) e baixa (B) (2.900kcal EM/kg) energia, sobre o desempenho e composição de carcaças de frangos de corte machos. Os níveis de PB foram reduzidos para obter as relações energia: proteína (E:PB) 139, 146, 153 e 160 (kcal/%) para as dietas iniciais (EXP 1), e 160, 167, 174 e 181(kcal/%) para as dietas de crescimento (EXP 2), em ambos os níveis de energia, mantendo constantes os níveis de MET+CIS e LIS. Todas as aves receberam uma mesma dieta antes (EXP 2) ou após (EXP 1) o fornecimento das dietas experimentais. O fornecimento das dietas A proporcionou melhor desempenho, no entanto resultou em maior deposição de gordura nas carcaças. No EXP 1,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Relação energia:proteína; Frangos de corte; Composição de carcaças; Desempenho. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2000000300005 |
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| Maiorka,A; Dahlke,F; Penz,AM; Kessler,AM. |
| We studied the effects of two different systems of expressing amino acid requirements (total - TAA or digestible - DAA), two energy levels (2,900 or 3,200 kcal of ME/kg) and two physical forms (mash or pellet) on the performance of male broilers from 21 to 42 d of age. Diets formulated on DAA basis improved feed conversion (p<0.001) and the conversion of consumed ME into body weight gain (p<0.001). Birds fed 3,200 kcal ME/kg presented better feed conversion (p<0.001), higher abdominal fat deposition (p<0.001) and worse conversion of consumed ME into body weight gain (p<0.001) as compared to birds fed 2,900 kcal ME/kg. Birds fed pelleted feed had higher feed intake (p<0.001), higher weight gain (p<0.001), better feed conversion... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestible aminoacid; Energy; Ideal protein; Pellet. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000100008 |
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| Laganá,C; Ribeiro,AML; Kessler,AM; Kratz,LR; Pinheiro,CC. |
| The objective of this experiment was to evaluate the effect of diet supplementation with vitamins C and E and organic minerals Zn and Se on the performance of 1 to 35 day-old broilers from, kept under cyclic heat stress (25 to 32ºC). Four levels of vitamin-mineral supplementation were used (T1-control diet (60/30 IU of vit E for starter and growing diet, respectively, zero vit. C, 80 ppm of inorganic Zn, 0.3 ppm of inorganic Se); T2-control diet + 100 UI vit E and 300 ppm vit C/kg; T3-control diet + 40 ppm Zn and 0,3 ppm Se/kg; T4-control diet + T2 and T3 levels) and two environments - thermoneutral and cyclic heat stress (TN and HS) from 14 to 35 days of age. In the period when part of the birds was submitted to HS, from 14 to 35 days, it was observed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ascorbic acid; Dl-alpha-tocopherol; Selenium; Thermal regulation; Zinc. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000100006 |
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| Maiorka,A; Magro,N; Bartels,HAS; Kessler,AM; Penz Jr,AM. |
| An experiment with 400 one-day-old male chicks (Ross) was conducted to evaluate the effects of different Na levels (0.10, 0.22, 0.34 and 0.46%) and different cation/anion balances (Na+K-Cl) (100, 150, 200, 250 and 300 meq/kg) in pre-starter diets on broiler performance. The corn and soybean-based diets had 22% crude protein and 2,900 kcal/kg metabolizable energy and were fed ad libitum. Performance data showed a positive quadratic effect of increasing Na levels on feed and water consumption, weight gain and feed conversion. Na+K-Cl also had a quadratic influence on feed intake and weight gain. None of the effects tested affected the amount of water measured in excreta. Derivatives of obtained regression equations pointed to optimal Na levels of 0.45% for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Chlorine; Electrolyte balance; Performance; Potassium; Sodium; Water. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000300002 |
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| Kessler,AM; Lubisco,DS; Vieira,MM; Ribeiro,AML; Penz Jr,AM. |
| Two experiments were carried out to evaluate the inclusion of vegetable oils with different fatty acid content in starter and pre-starter broiler diets. In Experiment I 480 1- to 9-day-old male Ross 308 broilers were fed diets containing corn oil (CO), acid corn oil (ACO), linseed oil (LO) or coconut fat (CoF). Chicks were distributed according to a factorial 2x2x2arrangement (2 free fatty acids - FFA ) x (2 n6:n3 ratios) x (2 medium-chain fatty acids levels - AGMC). Performance responses and dry matter (DMM), crude protein (CPM), and crude fat (CFM) metabolizability were evaluated. In Experiment II, 480 1- to 20-day-old male Ross 308 broilers were offered the free choice of 2 different diets: with no fat addition, or with 10% addition of the following fat... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Linseed oil; Metabolizable energy; N6:n3 ratio; Soybean oil; Voluntary intake. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000100006 |
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| Gianfelici,MF; Ribeiro,AML; Penz Jr,AM; Kessler,AM; Vieira,MM; Machinsky,T. |
| The objective of the experiment was to determine the Apparent Metabolizable Energy corrected for nitrogen (AMEn) of a glycerin product derived from biodiesel production for broilers. A number of 35 male Ross 308 broilers, with 35 days of age was fed ad libitum diets containing 0, 5, 10, 15, or 20% glycerin. AMEn was determined using total excreta collection, with four days of adaptation and three days of collection. Increasing glycerin intakes resulted in increased water excretion. Glycerin AMEn varied as a function of dietary inclusion levels, and a cubic equation was identified by regression analysis. Maximum AMEn level- 4890 kcal/kg DM- was obtained with 15% glycerin inclusion. However, this level caused excessive water excretion, making its use... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycerol; Metabolism; Water excretion. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2011000400006 |
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| Laganá,C; Ribeiro,AML; Kessler,AM; Kratz,LR; Pinheiro,CC. |
| This experiment aimed at verifying the effect of different diets and thermal environments on the performance, carcass yield, and diet digestibility of 21 to 42-day-old broilers. A total number of 288 21-day-old male Ross broilers were distributed in a 2 x 2 + 2 factorial arrangement, with six replicates, including the following factors: two environments (TNE - thermoneutral: 21-25ºC and 73% RH; CHS - cyclic heat stress: 25-32ºC and 65%RH), and two diets (control: 2.4% soybean oil and 19.5% protein; summer: 4.0% soybean oil and 18.5% protein). In TNE, two additional treatments were included with feed restriction of birds fed both the control and summer diets (pair-feeding), thereby maintaining the same feed intake level for both types of diet. Diet did not... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environment temperature; Fat; Poultry nutrition; Protein; Feed restriction. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000100007 |
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| Dahlke,F; Ribeiro,AML; Kessler,AM; Lima,AR. |
| Este experimento foi realizado com o objetivo de investigar os efeitos de diferentes granulometrias, expressa em Diâmetro Geométrico Médio (DGM) do milho (0,336mm, 0,585mm, 0,856 mm e 1,12 mm) de dietas fornecidas na forma farelada (FAR) e peletizada (PEL), no desempenho e no rendimento de carcaça e de cortes de frangos de corte de 21 a 42 dias de idade. Dietas FAR, produzidas com DGM de 0,336 mm resultaram em um menor consumo (p<0,001), ganho de peso (p<0,001) e pior conversão alimentar (p<0,001) do que as PEL de mesmo DGM. Os demais DGM não mostraram diferenças entre ração FAR e PEL. Quando avaliada somente a granulometria, observou-se que o aumento no DGM melhorou o ganho de peso linearmente e de forma quadrática o consumo e a conversão... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diâmetro geométrico médio; Milho; Desempenho; Rendimento de carcaça. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2001000300006 |
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| Krás,RV; Kessler,AM; Ribeiro,AML; Henn,JDi; Santos,II dos; Halfen,DP; Bockor,L. |
| The experiment was conducted to evaluate the effect of dietary fiber on the performance and energy balance of broiler chickens of a fast-growing strain (Cobb500) and a slow-growing strain (Label Rokens during the period of 1 one to 42 days of used In total, 360 male broilers (240 fast-grorain and 120 slow-grtrain)were, housed in collective cages. A completely randomized experimental dewith in a 3x2 factorial arrangement was applied, consisting of three groups of birds (slow-growing - SG; fast-growing fed ad libitum - FGAL; and fast-growing pair-fed with SG broilers - FGPF) and two iso-protein dis (a 3100 kcal ME/kg low-fiber diet and a 2800 kcal ME/kg high-fiber diet- Hwith containing 14% wheat bran and 4% oat hulls). Dietary fiber level did not affect... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cobb; Label Rouge; Pair-fed; Wheat bran. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000100003 |
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| Reginatto,MF; Ribeiro,AML; Penz Jr,AM; Kessler,AM; Krabbe,EL. |
| Dois experimentos (EXP 1 e 2) foram conduzidos para avaliar relações energia metabolizável:proteína bruta (EM:PB) e a adição de treonina (Thr) em dietas com alta (A) (3.200kcal EM/kg) e baixa (B) (2.900kcal EM/kg) energia, sobre desempenho e composição de carcaças de frangos de corte machos. As relações energia:proteína foram 139 e 160 kcal/%, para as dietas iniciais (1 a 21 dias) (EXP 1) e 160 e 181kcal/%, para as de crescimento (22 a 40 dias) (EXP 2), nos dois níveis de energia. As dietas com ampla relação EM:PB foram suplementadas, ou não, com Thr a fim de iguala-las às dietas com menor EM:PB. Os níveis de Met+Cys e de Lys foram constantes. As aves receberam uma dieta única após (EXP1), ou antes (EXP2) do fornecimento das dietas experimentais. Nos dois... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Composição de carcaças; Frangos de corte; Relação energia:proteína; Treonina. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2000000300006 |
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| Dahlke,F; Ribeiro,AML; Kessler,AM; Lima,AR; Maiorka,A. |
| The objective of this experiment was to investigate the effects of different particle sizes, expressed as Geometric Mean Diameter (GMD) of corn (0.336mm, 0.585mm, 0.856mm and 1.12mm) of mash and pelleted broiler chicken diets on the weight of the gizzard, duodenum and jejunum+ileum; on the pH of the gizzard and small intestine and on the characteristics of the duodenal mucous layer (number and height of villi and crypt depth) in 42-day-old broilers. The physical form and the particle size of the diet had no significant effect on gizzard and intestine pH (p > 0.05). A greater gizzard weight was seen in the birds receiving pelleted diet and particle size of 0.336mm (p < 0.008). However, for the particle sizes of 0.856 and 1.12 mm, a greater weight was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crypt depth; Geometric mean diameter; Intestine weight; Intestine pH; Villus height. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2003000100008 |
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| Somensi,ML; Monteiro,ANTR; Marx,FR; Bockor,L; Vieira,MS; Kessler,AM. |
| ABSTRACT The effect of fine wheat bran (FWB) as a methyl donor source on performance, metabolism, body composition and blood traits of growing broilers was studied. Three hundred and twenty broilers from eight to 28 d of age, distributed in a randomized block design, with five treatments and eight replicates of eight animals each were used. The experimental diets were: NC, formulated with 72% of the Met+Cys requirement; Met, formulated with 85% of the Met+Cys equivalents by DL-methionine addition; Bet, formulated with 85% of the Met+Cys equivalents by anhydrous betaine addition; Fwb-, formulated with 72% of the Met+Cys requirement and 20% FWB; and Fwb+, formulated with 85% of the Met+Cys requirement and 20% FWB. Feed intake was reduced (p<0.05) by FWB... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Byproduct; Feather synthesis; Methyl groups; Methionine; Nutrition. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100321 |
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| Maiorka,A; Dahlke,F; Santin,E; Kessler,AM; Penz Jr.,AM. |
| This study was conducted to evaluate the performance and carcass and breast yields of broilers fed two different energy levels (3,200 or 2,900 kcal ME/kg) and two ways of expressing amino acid requirements (total - TAA or digestible - DAA) between 21 and 42 days of age. The results showed that broilers fed the diet containing 3,200 kcal ME/kg had higher weight gain (P=0.015), better feed conversion (P=0.001), and higher abdominal fat deposition (P=0.001) as compared to those fed the diet containing 2,900 kcal ME/kg. Diets formulated on DAA basis promoted higher weight gain (P=0.043), better feed conversion (P=0.010) and better conversion of ME intake into weight gain (P=0.007) as compared to those formulated on TAA basis. The results of this study suggest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acid; Broilers; Energy. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000200003 |
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| Moraes,ML; Ledur,VS; Kessler,AM; Machado,PHM; Della,MP; Ribeiro,AML. |
| An experiment was conducted to evaluate the effect of an enzyme blend (EB) on the performance, diet metabolizability, phosphorus (P) retention, and bone mineralization of broilers fed diets containing 10% defatted rice bran (DRB). In total, 432 one- to 38-d-old male Cobb broilers were evaluated according to a completely randomized experimental design in 3 x 2 factorial arrangement. Three diets were tested with two nutrient reductions (NR) in the matrix (standard diet; NR I of 75 kcal/kg ME, 0.1% Ca and 0.1% available P; and NR II of 100 kcal/kg ME, 0.1% Ca and 0.1% available P) with or without the addition of an EB (200 g/t). The coefficients of total tract apparent retention (CTTAR) of the diets and P retention were determined by collecting excreta during... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler chicken; Defatted rice bran; Enzyme blend; Metabolism; Mineral retention; Performance. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000200191 |
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| Ribeiro,AML; Dahlke,F; Kessler,AM. |
| The supplementation of vegetal diets with L-methionine (100% molar), methionine hydroxyl analogue (HMB) (88% molar) or DL-methionine (99% molar) was compared as to the performance of broilers allocated in cages and submitted to cyclic heat stress (CHS). The trial was carried out from 21 to 42 days of age. Two levels of synthetic methionine were supplemented for each methionine source (0.1 or 0.3 %), and the control treatment was not supplemented with synthetic methionine (negative control). Statistical analyses included the negative control treatment or were performed in a 3 x 2 factorial design (sources x levels). Addition of synthetic methionine to the basal level containing 0.63 % of total sulphur amino acids significantly improved feed conversion (FC)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Methionine source; Poultry; Sulphur amino acids; Temperature. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000300004 |
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| Vieira,SL; Ribeiro,AML; Kessler,AM; Fernandes,LM; Ebert,AR; Eichner,G. |
| O produto comercialmente chamado "óleo ácido de soja", resulta da acidificação da borra residual do processo de refino do óleo de soja. Este tem sido muito utilizado na indústria de rações animais, ainda que com vários questinamentos a cerca de sua eficiência, tais como a adulteração com outros ácidos graxos de baixo valor nutricional, nível de peroxidação, presença de impurezas, e valores energéticos não confiáveis. Neste estudo, foi avaliado o desempenho de frangos de corte consumindo dietas contendo óleo de soja ou óleo ácido de soja nos níveis de 4 e 8% ou a mistura das duas fontes em partes iguais de 2 e 4% cada. Essas dietas foram fornecidas para frangos de corte alojados em baterias climatizadas a partir dos 7 dias de idade. As aves que receberam... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ácidos graxos livres; Energia; Frango de corte; Gordura; Óleo ácido de soja. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2002000200005 |
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| Registros recuperados: 17 | |
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