Organic minerals with different chemical characteristics in diets for Hy-Line White laying hens: performance, biometry of digestive organs, and bone quality

Farias, Maria Rogervânia Silva de; Bastos-Leite, Silvana Cavalcante; Moura, Constância Pontes; Costa, A. C.; Abreu, Cláudia Goulart de; Sena, TL

doi:10.1590/rbz4820170329

Cited by 7 publications

(3 citation statements)

References 14 publications

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“…Previous studies have refuted the hypothesis that trace mineral supplementation influences laying hen performance [13,[19][20][21]. However, our study found that AACM supplementation had a favorable impact on laying and feed efficiency.…”

Section: Discussioncontrasting

confidence: 73%

The Impact of Phytase and Different Levels of Supplemental Amino Acid Complexed Minerals in Diets of Older Laying Hens

Medeiros-Ventura,

Rabello,

Santos

et al. 2023

Animals

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A study was conducted to evaluate the effects of different sources and levels of supplemental amino acid-complexed minerals (AACM), with and without enzyme phytase (EZ). A total of 512 Dekalb White laying hens at 67 weeks of age were used in a 2 × 3 + 2 factorial arrangement of 8 treatments and 8 replications each. The main effects included EZ supplementation (10,000 FTU kg−1) and AACM inclusion level (100, 70, and 40% of inorganic mineral recommendations), plus 2 control treatments. The group of hens fed AACM-100 showed lower feed intake than the inorganic mineral (IM) group. The diet containing AACM-EZ-70 provided a higher (p < 0.05) laying percentage and a lower (p < 0.05) feed conversion ratio than both the IM and IM-EZ diets. The groups fed AACM-EZ-40, AACM-EZ-100, and AACM-70 produced heavier yolks (p < 0.05). Hens fed IM laid eggs with the lowest yolk and albumen weights (p < 0.05). Layers fed with AACM-100 and AACM-70 produced the most resistant eggshells to breakage (p < 0.05). In diets containing phytase, the optimal AACM recommendations for better performance and egg quality in older laying hens are: 42, 49, 5.6, 28, 0.175, and 0.70 mg kg−1 for Zn, Mn, Cu, Fe, Se, and I, respectively.

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Section: Discussioncontrasting

confidence: 73%

The Impact of Phytase and Different Levels of Supplemental Amino Acid Complexed Minerals in Diets of Older Laying Hens

Medeiros-Ventura,

Rabello,

Santos

et al. 2023

Animals

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“…The biometric analysis of the digestive organs makes it possible to identify probable changes arising from the nutritional management to which the birds were subjected, as the development of these organs is directly related to the animal's food (Farias et al, 2019). Considering the use of superdosing (900 FTUs) of enzymes in the diets, changes in the digestive organs, could evidence adverse effects of such ingredients, therefore making their use unfeasible.…”

Section: Discussionmentioning

confidence: 99%

Superdosing Phytases in the Diets of Light Laying Hens: Productive Performance and Bone Quality

Farias

Leite

Silva

et al. 2021

Braz. J. Poult. Sci.

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Two experiments were carried out with the objective of evaluating the effect of superdosing of two phytases on performance, egg quality, digestive organ biometry and bone quality of light hens in the first (58 weeks) and second (87 weeks) productive cycle. In the first cycle, 270 light hens were used, in which a completely randomized design was adopted in a 2 x 2 + 1 factorial scheme (bacterial phytase or fungal phytase x 450 FTUs or 900 FTUs + control diet). In the second cycle, 270 hens were used, following the same design as the previous experiment. The performance and quality of the eggs were evaluated in both cycles, and the biometry of the digestive organs and bone characteristics were also evaluated in the first experiment. There was no effect in the comparison between the means for the performance and egg quality (in both experiments), or for the biometric variables and bone characteristics (first experiment). There was no significant interaction between the factors for any of the variables in the two experiments. In the first experiment, egg production was higher with bacterial phytase and egg weight with fungal phytase. The mineral matter showed greater value with 450 FTUs. It is recommended to use bacterial phytase produced from Escherichia coli as it improves the performance of light laying hens. The dosage of 450 FTUs improves the mineral content of light laying hens and the use of phytase in the laying hen diet implies a lower feed cost.

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“…A biometric analysis of digestive organs enables identifying possible changes arising from the nutritional management to which the birds were subjected, as the development of these organs is directly related to the animal's feed (Farias et al, 2019). Considering the use of N GP in the feed of pullets, changes in digestive organs could show harmful effects of such ingredients, therefore making their use in birds' diets unfeasible (Li et al, 2018).…”

Section: Natural Growth Promoters Replacing Traditional Growth Promot...mentioning

confidence: 99%

Natural Growth Promoters Replacing Traditional Growth Promoters in Diets for Light Replacement Pullets: A Systematic Approach

Castro,

Leite,

Farias

et al. 2023

Braz. J. Poult. Sci.

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The effect of using natural growth promoters (NGP) to replace traditional antimicrobials on performance, biometry of digestive and reproductive organs, sexual maturity and bone characteristics of replacement pullets was evaluated; and the relationship between these variables according to the diets was verified. Eight-week-old birds were randomly assigned to a completely randomized design and fed different diets: negative control (without growth promoters); positive control -conventional growth promoter; organic acids (OA); symbiotic (S); essential oil (EO); OA + S; and EO + S. The performance, relative weight of digestive and reproductive organs and length intestines, height and crest length, sternum length, bone quality and sexual maturity of birds were similar (p>0.05) between treatments. The heat map combined with cluster analysis showed a uniform static pattern with the formation of three horizontal groups formed by the treatments: 1) negative control, S and OA + S; 2) positive control and OE and 3) OA and OE + S. A null relationship between the treatments and the variables under study was observed. The principal components analysis revealed an association of variables in three components with 60.55% of variation. NGP can replace traditional promoters, as they do not interfere with performance, biometrics or sexual maturity. Height and length are predictive variables for the development of reproductive organs, especially the oviduct. A similarity was identified through multivariate techniques between symbiotic and organic + symbiotic acids; positive control and essential oils; and organic and symbiotic acids + essential oils.

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Organic minerals with different chemical characteristics in diets for Hy-Line White laying hens: performance, biometry of digestive organs, and bone quality

Cited by 7 publications

References 14 publications

The Impact of Phytase and Different Levels of Supplemental Amino Acid Complexed Minerals in Diets of Older Laying Hens

The Impact of Phytase and Different Levels of Supplemental Amino Acid Complexed Minerals in Diets of Older Laying Hens

Superdosing Phytases in the Diets of Light Laying Hens: Productive Performance and Bone Quality

Natural Growth Promoters Replacing Traditional Growth Promoters in Diets for Light Replacement Pullets: A Systematic Approach

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