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COMPARASION OF LUPIN MEAL BASED DIETS COST EFFICIENCY FOR JUVENILE Penaeus monodon TESTED UNDER POND CONDITIONS
Full text linkA comparison of the cost efficiency of the formulated diets for juvenile Penaeus monodon in which fish meal or fish meal and soybean meal mixture were substituted with lupin (Lupinus angustifolius) meal at different levels has been conducted and is described in this study. The method used in the study was to estimate the relative economic performance for each dietary treatment using cost efficiency analysis equations. All diets containing different levels of lupin meal (0-30% and 0-48%) were compared in terms of total feed cost to determine the most cost-effective lupin meal based diet for juvenile Penaeus monodon reared in pens under pond conditions.
The results show that inclusion of lupin meal at a level of 30% that substitute 75% of fish meal protein in D4 formulation saved 18% in price in Australia and 11% in price in Indonesia when compared with D1 with no lupin meal. Diet D9 including 48% of lupin meal to substitute 75% of a mixture of fish meal and soybean meal saved 21% in price in Australia and 14% in price in Indonesia when compared with D6 with no lupin meal. it is concluded that diets D4 and D9 containing 30% and 48% dehulled lupin (L. angustifolius) meal as a replacement of 75% protein of fish meal and the mixture of fish meal and soybean meal, respectively can be considered as the most economical and profitable diets with an acceptable level of production for semi-intensive pond culture of P. monodon stocked at a level of 10 animals/m2
USE OF AZOLLA (Azolla pinnata) MEAL AS A SUBSTITUTE FOR DEFATTED SOYBEAN MEAL IN DIETS OF JUVENILE BLACK TIGER SHRIMP (Penaeus monodon)
Full text linkA 42-day feeding experiment was conducted to study the feasibility of utilizing azolla (Azolla pinnata) meal (AZM) as a replacement for soybean meal (SBM) in the diets for juvenile Penaeus monodon. The replacement levels of azolla meal protein in the diets were 0, 25, 50, 75, and 100% of the total soybean meal protein. All diets were isonitrogenous at 40% crude protein. Shrimp (mean initial
weight, 0.49±0.02 g) were fed three times daily ad libitum at an initial feeding allowance of 10% total body weight per day. A completely randomized design was used in the study and shrimp were stocked at a density of 10 animals/72 L-tank in triplicates. There were not significant differences in weight gains (1.97-2.06 g), specific growth rates (SGR 3.81-3.89%/d), feed conversion ratios (FCR 2.06-2.77), protein efficiency ratios (PER 0.89-1.24), apparent protein utilization (APU, 43.3 -56.7%), and survival rates (99.1-100%) among shrimp groups (P>0.05). Feeding preference tests showed that either soybean
meal-based diet or azolla meal-based diet was similarly preferred (P>0.05) by shrimp with the preference values of 51 and 40% for soybean meal-based diet and azolla meal-based diet, respectively.
The results of this study suggest that azolla meal protein can replace up to 100% of the soybean meal protein in practical diet for juvenile black tiger shrimp Penaeus monodon under laboratory conditions without any adverse performance. The use of azolla meal as an alternative plant protein source to soybean meal may be able to reduce the feed costs for Penaeus monodon aquaculture
Geografi dialek bahasa Jawa kabupaten demak/ Sudaryono (et al)
No full textxii, 241 hal.: ill.; 21 cm
statistik deskriptif : langkah mudah analisis data/ Sudaryono; (Asep Sefullah)
No full textxii, 238 hal.: tab.; 23 cm
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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