ABSTRACT The objectives of the present study are to determine the cycle and budget of nitrogen in larviculture ponds of the swimming crab Portunus rrituberculatus and to evaluate their impact on water quality and survival rate. Field surveys were carried out at the Hiroshima Prefecture Fish Farming Center from 1990 to 1993. Among nitrogenous compounds. concentrations of NH -N and particulate or...

This paper presents an approach to analytically determine the most energy efficient toolpath strategy in mechanical machining. This was achieved by evaluating the electrical energy requirement of the NC codes generated for the zag, zigzag, and rectangular contour toolpath strategies. The analytical method was validated by performing pocket milling on AISI 1018 steel with the considered toolpath...

Survival of larvae of mud crab, Scylla serrata (Forsskal, 1775) is a persistent issue in the field of induced breeding of the species. A preliminary study was conducted on feeding regimes of laboratory reared larvae and juveniles of S. serrata. The results showed that the survival of the larvae fed with green water alone or green water with plankton and feed was not significantly different from...

The objective of this experiment was to compare the effects of green tea by-product and green tea probiotics on the growth performance, meat quality and immune response of finishing pigs. A total of 72 crossbred “Landrace×Yorkshire” finishing pigs with an average of 76 kg body weight were assigned to 4 dietary treatments in a completely randomized design. Each treatment had 3 replications with ...

While many migratory marine organisms converge at breeding areas, identifying foraging strategies away from these reproductive sites can be challenging. Adult female green turtles Chelonia mydas regularly migrate thousands of kilometers between nesting and foraging areas, making it difficult to identify foraging habitats that support nesting populations and to understand their feeding strategie...

Hart and associates (1) have shown that milking goats, when fed a green feed, have been able to utilize the calcium to a higher degree than when fed dry feed. They state that “apparently there is something having its source in fresh green materials, which controls or assists calcium assimilation.” Hart and associates (2) have also reported evidence secured with milking cows that it is possible ...

in an eight-week time period, the implications of pediococcus acidilactici, as a probiotic, were examined on growth index and the activity of gastric enzymes of aequidens rivulatus (green terror) (0.388±0.0021) in a completely randomized system. the fishes were input into nine oval-shaped ponds of 120 liters capacity with the density of about 60 pieces per pond, and fed twice a day. this study ...

Purpose. To study how the content of main nutrients, amount and ratio structural nonstructural carbohydrates in green mass alfalfa changes during process growth development. establish a phase which produced feed will have high biological value. Methods. Sampling was carried out accordance with State Standard Ukraine (SSU) ISO 6497:2005, determination moisture other volatile substances – SSU 649...