Desempenho e qualidade dos ovos de poedeiras comerciais alimentadas com rações contendo farelo de coco tratado ou não com antioxidante

Lopes, Irani Ribeiro Vieira; Freitas, Ednardo Rodrigues; Lima, Janice Ribeiro; Neto, José Lopes Viana; Bezerra, Roseane Madeira; Lima, Renata de

doi:10.1590/s1516-35982011001100021

Cited by 13 publications

(9 citation statements)

References 13 publications

(19 reference statements)

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“…The following equations were adjusted for the feed conversion by mass of the eggs (CAM), respectively: CAM = (-4.59x10 -7 BE²) + (0.0014 BE) + 3.0815, (R2 = 0.47), achieving a BET value = 1525μeq / kg. However, these results differ from those recorded by LOPES et al, (2011) who found no significant effect for this parameter, in their study. By contrast, MORAES et al, ( 2019) reported a significant effect (P <0.05) concerning the electrolyte balance, indicating that the more quantity of NaHCO3 included in the diet the greater the feed conversion.…”

Section: Resultscontrasting

confidence: 99%

Total electrolyte balance for laying hens

et al. 2021

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This study was done to determine the best value of the total electrolyte balance (BET) concerning the variables of performance and egg quality of the laying hens. We investigated 240 Hy-Line Brown laying hens, of 30 to 46 weeks of age, adopting the completely randomized experimental design, which included five treatments (1000, 1250, 1500, 1750 and 2000 μeq / kg), 8 repetitions and 6 birds per unit. The performance and quality of the birds’ eggs were evaluated in the different treatments. The results were subjected to the analysis of variance and, wherever significant effect was noted, the regression equations were estimated, taking into account the electrolyte balance (μeq / kg) as a concomitant variable, applying the SAS statistical program (2001). The consumption, production, and feed conversion variables by dozen eggs, final bird weight, egg density, yolk color, Haugh Unit, albumen weight, shell weight, and egg weight, were found to be unaffected by the experimental BET values. The values of the feed conversion per egg mass, yolk weight and uniformity were affected by the different BETs. The electrolyte balance values showing minimum feed conversion, higher yolk weight, and better uniformity were, respectively, BET = 1400, 1330, and 1250 in μeq / kg of loads at the different temperatures. From the regression equations, the value indicated was BET=1390 for the 30- to 46-week-old laying hens. The electrolyte balance of the diet was found to affect the laying hens in terms of performance and egg quality.

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Section: Resultscontrasting

confidence: 99%

Total electrolyte balance for laying hens

et al. 2021

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“…According to Lopes et al (2011) the carotenoids are liposoluble substances transferred by the same mechanisms from lipids to ovarian follicles, where stored as fats or lipoproteins in yolks. But, the yolk pigmentation will depend on the type of ingredients used in the feed composition and the pigments necessary for color development.…”

Section: Variablesmentioning

confidence: 99%

Pirarucu By-Product Acid Silage Meal in Diets for Commercial Laying Hens

Batalha

Alfaia

Cruz

et al. 2018

Braz. J. Poult. Sci.

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This study aimed to evaluate the inclusion of pirarucu by-product acid silage meal in diets for laying hens on performance and egg quality. One hundred sixty eight Hissex White laying hens 73-wk-old were distributed in completely randomized design with seven treatments (0, 0.5, 1.0, 1.5, 2.0, 2.5 and 3.0%) and four replicates of six birds each. The experiment lasted 84 days divided into four periods of 21 days. Estimates of pirarucu by-product meal levels were determined by polynomial regression. Differences (p<0.05) were observed in all variables of performance, in egg weight, yolk height and yolk pigmentation, with pirarucu by-product meal inclusion in diets showed better results than control diet. The pirarucu by-product acid silage meal can be used as alternative food in diets for commercial laying hens. Up to the 2.5% inclusion level there wasn't negative effect in performance and egg quality.

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“…Em virtude da sazonalidade e dos preços de produtos como o milho e o farelo de soja, ingredientes que mais contribuem para a elevação dos custos de produção de aves, a busca por alimentos alternativos, principalmente subprodutos agroindustriais, tem sido crescente (JAFARI et al, 2006;LOPES et al, 2011). As exigências atuais do consumidor por alimentos mais saudáveis e naturais também auxiliaram no incentivo do crescimento do número de pesquisas na área de nutrição animal com alimentos alternativos em substituição aos alimentos comumente utilizados nas rações, principalmente transgênicos e sintéticos, de modo a manter ou incrementar a produtividade, reduzir os custos (GARCIA & DALE, 2006;GARCIA et al, 2009), e melhorar a qualidade deste produto final.…”

Section: Introductionunclassified