نتایج جستجو برای: stocking
تعداد نتایج: 3536 فیلتر نتایج به سال:
This paper reviews historical differences among native lake trout (Salvelinus namaycush) populations, genetic comparisons of populations, heritability of physiological traits, performance of strains after stocking, and the role of genetics in management. Differences among lake trout were historically recognized by aborignal people, Jesuit missionaries, and French voyageurs, and later by natural...
Study on effect of salinity and stocking density on 21 day-old Snubnose pompano (Trachinotus blochii Lacepède, 1801) was conducted in three experiments. Experiment 1: Fish were stocked at different salinity levels at 10, 15, 20, 25, 30 and 35‰ in 48 hours; experiment 2: Fish were stocked at different salinity levels at 10, 15, 20, 25, 30 and 35‰ in 28 days; and experiment 3: Fish were stocked a...
Two experiments were conducted with a view to assessing the effects of stocking densities on the growth and breeding performance and larval growth and survival of Channa striatus. The first one was carried out with a view to find a suitable stocking density of Channa striatus at which they could spawn while the second experiment dealt with the effect of stocking density on growth and survival o...
Residual feed intake (RFI) testing has increased selection pressure on biological efficiency in cattle. The objective of this study was to assess the association of the rumen microbiome in inefficient, positive RFI (p-RFI) and efficient, negative RFI (n-RFI) Brahman bulls grazing 'Coastal' bermudagrass [Cynodondactylon (L.) Pers.]under two levels of forage allowance (high and low stocking inten...
The effects of stocking both filter-feeding fish and piscivorous fish were compared to the effects of stocking only filter-feeding fish for suppressing algal blooms and improving water quality in the impoundment area of Xiaojiang River where catfish were dominant. Using only filter-feeding fish for algal suppression and water quality control was more effective in the short-term, but use of both...
The objective of this study was to assess whether and how coping strategies affect the welfare of African catfish Clarias gariepinus housed at low and high densities. Group composition influenced feed intake; re-active groups (comprised of 100% re-active fish) had a lower specific growth rate (G) and feed intake and a higher feed conversion ratio (R(FC)) than pro-active groups. Furthermore, re-...
BACKGROUND AND PURPOSE Mental disability is often characterized by significant limitations in adaptive skills. When this condition is associated with lymphedema, treatment requires greater commitment of the care team. The objective of this study is to report the treatment of lymphedema using only one therapeutic technique, a low-stretch grosgrain stocking. CASE REPORT We report the case of a ...
A supplier stocking goods for delivery to a retailer may face a finite-horizon service-level agreement. In this context, the service-level agreement is a commitment by a supplier to achieve a minimum fill rate over a specified time horizon. This kind of service level agreement is an important, but under-studied coordination mechanism. We focus on the impact of two contract parameters, the lengt...
Modelling Nitrogen Losses from Sheep Grazing Systems with Different Spatial Distributions of Excreta
The aim of this study was to assess the effect that the randomised versus even distribution of excreta (dung and urine) may have on modelling nitrogen (N) losses by leaching, volatilisation and denitrification from a grazing system. A range of stock densities (from 200 to 2000 sheep/ha, equivalent to an annual stocking rate of 3 to 33 dry sheep equivalent (DSE)/ha respectively) were simulated t...
The effects of osmotic pressure, temperature and stocking density on medusae survival of Craspedacusta sowerbii were examined. The medusae were shown to be sensitive to the variations of osmotic pressure. And the survival time was <90 h at 34 mOsm/L and it declined rapidly with rising osmotic pressure. The peak survival time of >200 h was recorded at 0.2 mOsm/L. Comparing with 27℃ and 32℃ treat...
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