Stocking Density
Mostrando 13-24 de 86 artigos, teses e dissertações.
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13. Influences of dietary crude protein and stocking density on growth performance and body measurements of ostrich chicks
Abstract: Thirty-six African Black ostrich chicks were used to investigate the effects of dietary crude protein (CP) levels (180, 210 and 240 g/kg), stocking density (4.5 and 3 m2/bird) and their interactions. A factorial arrangement was used to examine the impact of treatments on growth performance and body measurements of ostrich chicks during 2 to 10 week
An. Acad. Bras. Ciênc.. Publicado em: 08/04/2019
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14. Effect of stock density of cultured Amazon Apple Snail Pomacea dolioides (Gastropoda: Ampullariidae) in Brazil
ABSTRACT This study evaluated the biomass gain, specific growth rate, absolute weight gain, and survival rate of the gastropod Pomacea dolioides cultivated in different stocking densities. To perform the experiment, samples were collected in March and June 2015. A total of 40 adult specimens were collected in the Jauary neighborhood (03°08′19.9"S, 58°27�
R. Bras. Zootec.. Publicado em: 18/03/2019
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15. Spatial variability of soil physical-hydric attributes under bovine trampling in agreste of Pernambuco State, Brazil
ABSTRACT. Soils under pastures suffer physical modifications, in greater or lesser intensity, via the action of animal trampling. Thus, the aim was to evaluate the spatial dependence of soil physical attributes under bovine trampling. The trial was performed at Roçadinho Farm, Agreste of Pernambuco, Brazil, in a 40 x 40 m paddock that was managed with conti
Acta Sci., Agron.. Publicado em: 17/12/2018
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16. Effects of stocking density and artificial substrates on yield and water quality in a biofloc shrimp nursery culture
ABSTRACT The objective of this study was to evaluate the effect of different stocking densities and the presence/absence of two artificial substrates on water quality and production rates of marine shrimp in a biofloc shrimp nursery culture. Two experiments were performed: different stocking densities with mosquito netting substrate and the presence/absence
R. Bras. Zootec.. Publicado em: 04/10/2018
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17. Determining the Contribution of Ventilation and Insulation of Broiler Breeding Houses in Production Performance Using Analytic Hierarchy Process (AHP)
ABSTRACT This study was conducted using Analytic Hierarchy Process (AHP) in order to rank broiler breeding farms in Zanjan province, Iran, regarding buildings, installations, and equipment to determine their effects on production factors. Data on 108 farms were collected using designed forms. This data was analyzed based on the effectiveness of each paramete
Braz. J. Poult. Sci.. Publicado em: 2018-04
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18. Effect of Vitamin E Supplementation and High Stocking Density on the Performance and Stress Parameters of Broilers
ABSTRACT The present study was carried out to investigate the effect of dietary supplementation with vitamin E and stocking density on the mortality, body weight gain, feed conversion ratio, European production efficiency factor, heterophil/lymphocyte (H/L) ratio and liver glutathione (GSH) and malondialdehyde (MDA) levels of broilers. In total, 570 one-day-
Rev. Bras. Cienc. Avic.. Publicado em: 2017-12
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19. Effects of supplementary choline on quail meat and fatty liver
ABSTRACT The objective of this study was to investigate the effects of supplementary choline on amount of choline passing to quail meat and reduction of fat deposition in liver. A hundred and thirty-six one-day-old Japanese quails were divided into eight equal groups of 17 quails each. The experiment was designed based on completely randomized design in two
R. Bras. Zootec.. Publicado em: 2017-08
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20. Influence of stocking density on growth performance and welfare of juvenile tilapia ( Oreochromis niloticus ) in cages
RESUMO A intensificação da produção de tilápias pode gerar implicações negativas sobre o desempenho e o bem-estar dos peixes. Assim, é essencial determinar a densidade correta para otimizar a produção. O objetivo deste estudo foi avaliar o desempenho e o bem-estar de tilápias-do-nilo (Oreochromis niloticus) juvenis, com peso inicial médio de 30g
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2017-02
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21. Effect of Stocking Density on the Performance and Immunity of 1- to 14-d- Old Broiler Chicks
ABSTRACT The current experiment was conducted to evaluate the effect of stocking density (SD) on the performance and immunity of 1- to 14-d-old broilers. A total of 1836 one-day-old Cobb 500 broilers were housed at four different SD (30, 60, 90 and 120 chicks/m2). Body weight gain (BWG), feed intake (FI) and feed conversion ratio (FCR) were estimated on d 2,
Rev. Bras. Cienc. Avic.. Publicado em: 2016-12
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22. Assessment of Broiler Chicken Welfare in Southern Brazil
Abstract Scientific literature on broiler chicken welfare in Brazilian industrial systems is scarce. This study aimed at assessing broiler chicken welfare on industrial farms in the State of Rio Grande do Sul, Southern Brazil, using the Welfare Quality(r) assessment protocol for poultry, to provide directly applicable scientific information. Results are pres
Rev. Bras. Cienc. Avic.. Publicado em: 2016-03
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23. Densidade de estocagem na produção de juvenis de duas espécies de lambaris em sistema de recirculação
ABSTRACTThe aim of this study was to evaluate the stocking density for juveniles for two different species of characins (Astyanax bimaculatus and A. scabripinnis) in a recirculation system. An experiment was carried out with each type in which twelve tanks in each experiment were divided into four treatments (0.25, 0.75, 2.25 and 6.75 fish.L-1), in triplicat
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2015-10
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24. Stress in Pimelodus maculatus (Siluriformes: Pimelodidae) at different densities and times in a simulated transport
The transportation of live fish is a routine procedure in aquaculture, and includes a series of stressful stimuli such as an increase in the stocking density of specimens per volume of water, and abrupt changes in water quality. This study evaluated the water quality and the stress levels on Pimelodus maculatus (Lacépède, 1803) fingerlings transported in p
Zoologia (Curitiba). Publicado em: 2014-02