Specific Gravity
Mostrando 13-24 de 208 artigos, teses e dissertações.
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13. Egg quality of laying hens fed diets with plant extracts
ABSTRACT. The objective of this study was to evaluate the effect of marigold flower extract and paprika on egg quality of Black Avifran laying hens in different periods of storage. A completely randomized design study with a 3x3 factorial scheme with three diets (control, paprika, and marigold flower extract) and three storage periods (0, 7, and 14 days) was
Acta Sci., Anim. Sci.. Publicado em: 29/04/2019
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14. BEAK TRIMMING BY INFRARED RADIATION OF LAYERS
ABSTRACT This study aimed at evaluating beak-trimming methods and intensities on the performance, beak length and uniformity, and egg parameters of commercial layers. During the rearing period, birds were distributed in randomized blocks, with a 2x3 factorial design + two treatments, consisting of beak trimming with infrared (IR) radiation (moderate or sever
Braz. J. Poult. Sci.. Publicado em: 18/04/2019
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15. Yield, frying quality, plant vigor, and maturity of potato clones
RESUMO O objetivo com o presente trabalho foi avaliar caracteres de rendimento de tubérculos, de qualidade de fritura, vigor de planta e ciclo vegetativo de clones de batata cultivados a partir de minitubérculos, e a correlação entre essas características. Foram avaliados oito clones avançados em fase de desenvolvimento pelo programa de melhoramento da
Hortic. Bras.. Publicado em: 15/04/2019
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16. Gravity of the non-authorized use of substances not intended for clinical use in invasive aesthetic procedures: the portuguese case
RESUMO INTRODUÇÃO: Os procedimentos estéticos invasivos estão a aumentar globalmente, e são acompanhados por uma apreensão das sociedades médicas sobre a segurança desses procedimentos, dependentes da qualidade e certificação dos prestadores, dos dispositivos e substâncias utilizados e do local onde são efetuados. O presente estudo procura aferi
Rev. Assoc. Med. Bras.. Publicado em: 11/04/2019
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17. Distillers dried grains with solubles from corn in diet of japanese quails
ABSTRACT. The objective of this study was to evaluate different inclusion levels of distillers dried grains with solubles (DDGS) from corn in the diet of quails. A total of 210 japanese quails (Coturnix coturnix japonica) were distributed in a completely randomized design of five treatments and six replicates, with seven quails per experimental unit. The tre
Acta Sci., Anim. Sci.. Publicado em: 25/02/2019
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18. The use of cinnamon powder in the diet of Japanese laying quail
ABSTRACT. The objective of this study was to evaluate the inclusion of powder cinnamon in the diet of Japanese quails, regarding their performance and egg quality. A total of 360 quails, 18 weeks old, were distributed in a completely randomized design with five treatments and six replicates of 12 animals. The experimental period lasted 84 days. The treatment
Acta Sci., Anim. Sci.. Publicado em: 25/02/2019
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19. Performance and welfare of different genetic groups of laying hen
ABSTRACT. The objective was to evaluate the performance, egg quality, thermoregulation, body morphology and behavior of different categories of laying poultry. Two treatments with two genetic groups were used, 50 birds of the Hisex Brown strain and 50 birds of the Black Avifran chicken breed with 55 weeks, distributed in a completely randomized design with 1
Acta Sci., Anim. Sci.. Publicado em: 25/02/2019
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20. Calcium particle size and feeding time influence egg shell quality in laying hens
ABSTRACT. An experiment with Leghorn laying hens was undertaken to determine the effect of oyster shell particle size and feeding time on different production variables, calcium retention, plasma calcium content and egg internal and external quality. Two hundred Leghorn layers (40 weeks old old) were allocated in five dietary treatments with four replicates
Acta Sci., Anim. Sci.. Publicado em: 25/02/2019
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21. Organic minerals with different chemical characteristics in diets for Hy-Line White laying hens: performance, biometry of digestive organs, and bone quality
ABSTRACT Two trials were carried out to evaluate the effect of groups of organic minerals with different chemical characteristics on the performance, egg quality, biometry of digestive organs, and bone quality of laying hens in the first and second laying cycles. In the first cycle, 180 layers at 72 weeks were used in a completely randomized design (CRD) wit
R. Bras. Zootec.. Publicado em: 25/02/2019
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22. Performance and egg quality of laying hens fed with mineral sources and rosemary oil
Abstract In order to evaluate the effect of rosemary oil and micro mineral sources on the performance and egg quality of laying hens, 288 hens were used and distributed in a completely randomized design using a 2x3 factorial (mineral sources x rosemary oil) with six different diets and six replications. Diets were formulated containing inorganic or organic m
An. Acad. Bras. Ciênc.. Publicado em: 07/02/2019
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23. Grape (Vitis Vinifera) Pomace Flour as Pigment Agent of Quail Eggs
ABSTRACT The aim of the study was to evaluate the effect of dietary grape pomace flour (GPF) inclusion on the performance and egg quality of European quails (Coturnix coturnix coturnix) in lay. One hundred ninety-two (192), 42-day-old quails were distributed in a completely randomized design with four treatments (0, 2, 4 and 6% grape pomace flour inclusion)
Rev. Bras. Cienc. Avic.. Publicado em: 2018-03
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24. Eggshell Qualities as Indicative of Eggshell Strength for Layer Selection
ABSTRACT The study aimed at investigating which of four traits is the most representative of eggshell strength (destructive eggshell thickness measurement, eggshell weight, egg specific gravity, ultrasonic measurement of eggshell thickness) and could be used for selection purposes. To date, investigations focused mostly on pairwise (eggshell strength vs. ano
Rev. Bras. Cienc. Avic.. Publicado em: 2018-03