نتایج جستجو برای: stocking density
تعداد نتایج: 412527 فیلتر نتایج به سال:
An increase in stall stocking density (SSD), as measured by the number of lactating cows per stall in a freestall barn, reduces cow performance, such as milk yield and fertility, but may increase farm profitability. Our objectives were to calculate effects of varying SSD on profit per stall for a range of effects on cow performances and external farm factors and store results in regression meta...
Introduction In Finland, the forest canopies are the main source of the volatile organic compounds (VOC). These forests are representative of the boreal ones, and they cover about 80% of the total land area of the territory of Finland. The forests throughout the country are utilised commercially and managed regularly with the consequence that the natural tree species composition is much affecte...
This research represents the first attempt in Italy to develop a cage system for adult freshwater mussel stocking, for extensive farming, that was realized from 2003 to 2005 in NW Italy. Two autochthonous species of Italian freshwater mussel were used: Anodonta anatina and Unio mancus. 5133 mussels were collected and successively stocked in floating cages in 5 different sites in a lake. This st...
An experiment was conducted over a period of 150 days at Can Tho, Vietnam to adapt integrated cage-cum-pond systems to local conditions in Vietnam, to determine appropriate stocking density of selected fish species in cages, to assess growth and production of fishes in both cages and open ponds, and to assess the economic and environmental benefits of this integrated system. Nile tilapia (Oreoc...
This study describes the effects of different stocking densities on texture/colour characteristics, protein content /amino acid and lipid content/fatty acid composition of rainbow trout fillet. Stocking density was selected 5 (Group A), 15 (Group B), 25 (Group C) kg fish m−3. Tukey’s Multiple Comparison Test showed insignificant differences between measured size/weight measurement and condition f...
This study examined the effects of the supplementation of China rose powder of Hibiscus rosasiensis towards blue gourami with different stocking densities.China rose (1.5%) was used on two different stocking densities (20 and 30 fishes per aquarium). The group that contain a total of 20 (individual/aquarium) and 30 (individual/aquarium) densities of fishes, are referred as CH1 and CH2 respectiv...
The aim of this study was to evaluate the effects of stocking density on growth, production and profitability of farming Labeo bata fry in earthen rearing ponds for a period of 60 days. Labeo bata, fry (mean initial length, 3.42 ± 0.07cm and weight, 1.02 ± 0.06 g) were stocked at 750, 1000 and 1250 decimal-1 in treatment-1(T1), treatment-2 (T2) and treatment-3 (T3) respectively, each with two ...
We quantified biomass and nutrient accumulation of Acacia dealbata Link and Eucalyptus globulus Labill. planted at stem densities of 5000 and 15000 ha 1 in a bioenergy plantation in Chile. We tested the hypotheses that species and stocking will not affect biomass or nutrient accumulation. Species and stocking did not affect biomass accumulation after five years; however, species and stocking di...
The Effect of Stocking Density and Different Dietary Energy Levels on Immune System Response Body Weight Broiler Breeders in Rearing Laying Period
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