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| Registros recuperados: 69 | |
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| Rodrigues, Eliana Aparecida; Instituto Federal do Triangulo Mineiro; Oliveira, Maria Cristina de; Universidade de Rio Verde; Cancherini, Luciana Cardoso; Universidade do Estado de Mato Grosso; Duarte, Karina Ferreira; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Santana, Luis Fernando; Instituto Federal do Triangulo Mineiro; Junqueira, Otto Mack; Universidade Estadual Paulista “Júlio de Mesquita Filho. |
| The experiment evaluated the effect of different calcium (Ca) levels in pre-laying and laying diets on the performance and egg quality of laying hens. Two hundred and fifty-six 16-week-old Brown Hisex pullets were housed in a conventional shed. The experiment had a completely randomized design with 4 x 2 factorial arrangement (four calcium levels - 0.8, 1.3, 1.8 and 2.3% in pre-laying phase; two calcium levels - 2.5 and 3.5% in laying phase), totaling eight treatments with four repetitions of eight birds per experimental unit. The experiment started with 16-week-old hens receiving pre-laying diets provided until they were 18 weeks old. At this period, the laying diets started. Four 28-day cycles were evaluated for the following variables: production and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.00.00-2 e 5.04.03.00-1 egg mass; Egg production; Eggshell quality; Feed intake; Pullets egg mass; Egg production; Eggshell quality; Feed intake; Pullets. |
| Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/16555 |
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| Vieira Filho, Javer Alves; Garcia, Edivaldo Antônio; Molino, Andréa de Britto; Santos, Tiago Atônio dos; Almeida Paz, Ibiara Correia de Lima; Baldo, Grace Alessandra de Araújo. |
| Two experiments were conducted at different times with the objective of investigating how the body weight of Japanese quails at the end of the rearing period may alter the performance during the laying phase. In both experiments, the birds were distributed in five treatments according to their body weights, which were obtained at 42 and 35 days of age for the first and second experiments respectively, and the following categories were considered for said experiments: very light, light, average, heavy and very heavy. For both experiments, the treatments were distributed in a randomized block design, at eight repetitions per treatment for the first one and six for the second one, both at 18 birds per repetition. During the first experiment, sexual maturity,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body development; Egg production; Quail production; Sexual maturity.. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/29858 |
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| Matos, Maira Silva; UFG; Leandro, Nadja Susana Mogyca; UFG; Stringhini, José Henrique; UFG; Café, Marcos Barcellos; UFG; Carvalho, Fabyola Barros de; UFG; Gomes, Natali Almeida; UFG. |
| Objetivou-se avaliar o desempenho (25 a 44 semanas de idade) e o balanço de nitrogênio de poedeiras comerciais alimentadas com rações contendo níveis de lisina digestível (0,700; 0,800 e 0,900%) combinados com os de treonina (0,500; 0,550 e 0,600%). O delineamento experimental foi inteiramente ao acaso em esquema fatorial 3x3 (níveis de lisina x de treonina), com cinco repetições de oito aves cada. Os dados foram submetidos à análise de variância e as médias comparadas pelo teste de Tukey. Observou-se aumento na ingestão de lisina e de treonina (p < 0,05) com o acréscimo desses aminoácidos na ração. Os níveis de lisina e treonina não influenciaram a produção de ovos (p > 0,05), no entanto, o peso do ovo piorou com a inclusão de 0,550% de treonina... |
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Palavras-chave: 5.04.00.00-2 Zootecnia aminoácido digestível; Poedeira leve; Produção de ovos Tem experiência na área de Zootecnia com ênfase em Nutrição e Alimentação Animal de monogástricos. digestible amino acids; Laying hen; Egg production. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/1387 |
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| Teixeira,Priscila F.; Kaminski,Sonia M.; Avila,Tatiana R.; Cardozo,Alessandro P.; Bersano,José G.F.; Bianchini,Adalto. |
| Egg production in the copepod Acartia tonsa was evaluated using different densities of the microalgae Thalassiosira weissflogii, Chaetoceros muelleri and Isochrysis galbana. Male and female were kept under controlled conditions (salinity 30, 20°C, photoperiod 12L:12D), acclimated to the experimental conditions and left over a period of 24 h to allow copulation. Algal densities tested were equivalent in biovolume and corresponded to 0, 2.5, 5, 10, 20, 40 and 60.10³ cells.mL-1 of T weissflogii. Ten acclimated female were separated, transferred to glass bottles and exposed for further 24 h to the corresponding experimental medium. After this period, the eggs were fixed and counted. Copepod egg production reached a threshold value when T weissflogii, C.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg production; Acartia tonsa; Microalgae. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000200009 |
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| Ajakaiye,Joachim J; Ayo,Joseph O; Ojo,Sunday A. |
| The effects of vitamins C and E on layer chickens transported by road for 6 h during the hot dry season were investigated. Two experimental groups consisting of thirty Shika Brown layers were separately administered vitamins C and E orally just before transportation, while another 30 layers, which were only given sterile water, served as control. Blood samples analyzed before and after transportation in the control layers showed a decrease (p<0.05) in total white blood cell, (p<0.01) lymphocyte and monocyte values, and a signifcant (p<0.05) and (p<0.001) increase in the values of eosinophils and heterophils post-transportation, respectively. In the experimental groups, post-transportation values of total white blood cells, eosinophils and... |
| Tipo: Journal article |
Palavras-chave: Egg production; Heat and transport stress; Layer chickens; Leukocyte profle; Vitamins C and E. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602010000200006 |
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| Rodríguez-Ríos,Hernán E; Campos-Parra,Jorge A; Williams-Salinas,Pamela A; Blanck-Heimann,Markus H; Astudillo-Neira,Rita G; Grande-Cano,Jesús D. |
| H.E. Rodríguez-Ríos, J.A. Campos-Parra, P.A. Williams-Salinas, M.H. Blanck-Heimann, R.G. Astudillo-Neira, and J.D. Grande-Cano. 2015. The inclusion of distiller’s dried corn grains with solubles in the feed of laying hens during the production stage. Cien. Inv. Agr. 42(3): 331-339. The aim of this study was to assess the effects of distiller’s dried corn grains with solubles (DDGS) in the diet of laying hens on their productive parameters (live weight, laying percentage, and feed intake) and egg quality (egg weight, mass, yolk color and shell thickness). This study was conducted in the Andes Mountains in Parral, Chile. It covered a span of 13 weeks of productive egg laying, ranging from the 31st to the 44th week of life of the hens. The... |
| Tipo: Journal article |
Palavras-chave: Egg production; Hy-Line Brown; Soybean bran. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202015000300002 |
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| Duarte,Vinicius; Minafra,Cibele Silva; Santos,Fabiana Ramos dos; Perim,Francisco dos Santos. |
| The objective of this experiment was to evaluate the effects of a diet containing canthaxanthin and 25-hydroxycholecalciferol (25-OH-D3) on the production and reproductive performances of Cobb 500 broiler breeders aged 53 to 61 weeks. The study included 36,000 Cobb 500 female and 3,600 male broiler breeders aging 51 weeks. The birds were housed in three poultry houses divided into four plots, totaling 12 experimental units each containing 3,000 females and 300 males. The birds received the following treatments: control diet (without the studied additives) or the control diet with the addition of 60mg kg-1feed of 25-(OH)-D3 and canthaxanthin feed (6mg of canthaxanthin and 2,760,000IU of 25-(OH)-D3 per kg of feed) per the supplier's recommendations. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carotenoids; Vitamin D; Broiler breeders; Hatching; Egg production. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001102050 |
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| Ribeiro,Jeferson Corrêa; Silva,Luciano Pinheiro da; Caetano,Giovani da Costa; Crispim,Aline Camporez; Pacheco,Rodrigo de Oliveira; Torres,Robledo de Almeida. |
| ABSTRACT: Data from 629 meat type quails were used to study association between two different sets of traits: egg production and reproduction. Traits related to reproduction were: body weight at 42 days (W42), average egg weight (AEW), age at sexual maturity (ASM); and production traits: number of eggs produced from 42 until 182th day considering intervals of 35 days each period (P1, P2, P3 and P4). Canonical correlations were used to describe the association between these two sets of traits. The canonical coefficients indicated that egg production and reproductive traits were moderately related (0.3475). The first partial period of production (P1) and age at sexual maturity were the most relevant traits among the analyzed variables. Results show that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal breeding; Canonical pairs; Coturnix coturnix; Egg production; Multivariate analysis. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701289 |
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| Registros recuperados: 69 | |
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