Suitable stocking density of tilapia in an aquaponic system

An aquaponic system was studied through the integrated culture of mono-sex GIFT and two types of vegetables viz. morning glory, Ipomoea reptans and taro, Colocasia esculenta in a recirculating system for 15 weeks. Tilapia fry of uniform size of 0.76 g were released in three treatments (stocking densities): 106 fish/m³ (T1), 142 fish/m³ (T2) and 177 fish/m³ (T3) to assess the effect of stocking density on the growth performance of fish. Fish were fed with a commercial feed containing 25% protein. Weight gain (g) of tilapia ranged from 19.41 to 32.67 g and was inversely related with stocking density. Percent weight gain varied between 2553.99 and 4298.68% and was significantly different among the treatments. SGR ranged from 3.09 to 3.59% per day and varied significantly. FCR varied from 2.19 to 2.69 and had a positive correlation with stocking density. The highest survival rate (%) was achieved in T1 (99%) followed by T2 (98%) and T3 (96%). Production of fish ranged from 3.43 to 3.52 kg/m³ and was inversely related with stocking density. The present study demonstrated that 106 fish/m³ was the best stocking density in terms of growth, food conversion ratio, survival and production for tilapia culture in the aquaponic system

Keanekaragaman dan Dominansi Plankton di Estuari Kuala Rigaih Kecamatan Setia Bakti Kabupaten Aceh Jaya

The objective of this research was to figure out the diversity and dominance index of plankton in the waters of Kuala Rigaih, Aceh Jaya District. Samples were collected on October 2015 from three stations, namely upstream, estuary and downstream of the river. Sampling was conducted randomly with three repetitions, then samples were analyzed at the Laboratory of Marine Biology, Marine and Fisheries Faculty, Syiah Kuala University. The result showed that the diversity value in the waters of Kuala Rigaih ranged from 1.41 to 1.87 with the dominance value ranged from 1.41 to 0.28. This indicated that the diversity of plankton in the waters of Kuala Rigaih was cathegorized as moderate and there wasn’t the plankton spesies that dominated in the area Tujuan dari penelitian ini adalah untuk mengetahui tingkat keanekaragaman dan dominansi spesies plankton di perairan Kuala Rigaih, Kabupaten Aceh Jaya. Pengambilan sampel dilaksanakan pada Bulan Oktober 2015, pada 3 stasiun yaitu hulu sungai, muara dan dekat laut (hilir). Pengambilan sampel plankton dilakukan secara acak pada saat pasang sebanyak 3 kali ulangan. Sampel plankton dianalisis di Laboratorium Biologi Laut, Fakultas Kelautan dan Perikanan, Unsyiah. Hasil analisis menunjukkan bahwa nilai indeks keanekaragaman (H’) di perairan Kuala Rigaih berkisar 1,41-1,87 dengan indeks dominansi (D) berkisar 0,18-0,28. Hal ini menunjukkan bahwa tingkat keanekaragaman spesies plankton di perairan Kuala Rigaih adalah sedang dan tidak ada spesies plankton yang mendominansi spesies lainnya (dominansi rendah)

Studies of filter feeding carps of commercial importance in Bangladesh with particular emphasis on the use of automated counting methods

The filter feeding capabilities of the Indian major carp Labeo rohita (Ham.) and Catla catla (Ham.) and the Chinese carp Hypophthabmichthys molitrix (Val.) were studied under laboratory conditions. An ultrastuctural and histological study of the pharyngeal apparatus associated with filter feeding of laboratory reared fish between 30 and 90 mm standard length (SL) showed that a large number of mucus cells, both small goblet and large clavate cells, were present in the bucco-pharyngeal region of all species studied and on the wall of the suprabranchial organ of H. molitrix. The density of taste buds was observed to be much greater on the roof of the pharynx and comparatively low on the roof of the mouth in all species. Among the carps studied, H. molitrix had the greatest concentration of taste buds on both the roof and floor of the bucco- pharyngeal region. An important part of the study was the development of a sound methodology for counting algal cells and colonies. An automated electronic particle counter, the Coulter Multisizer, was used to increase the speed of counting. A study was also carried out to determine the effects of the preservatives Lugol’s iodine and buffered formalin at different concentrations on both long-term and short-term storage of Pediastrum boryanum. Microcystis aeruginosa and Chlorella vulgaris. Both Lugol's iodine and buffeted formalin of different concentrations caused significant decreases in the numbers of cells and colonies during preservation. Lugol's iodine of different concentrations caused cell shrinkage in C. vulgaris and M. aeruginosa after 24 h of preservation. The abilities of carp fry and fingerlings to ingest a range of algal species were investigated. H. molitrix was found to be the most efficient among the carps studied in ingesting P. boryanum and M. aeruginosa, although C. catla was found not to be able to ingest M. aeruginosa. Ingestion rate was found to be positively correlated with algal density. It was also observed that algal size had a positive effect on ingestion rates. In a separate trial it was found that silver carp did not ingest a toxic strain of M. aeruginosa. An attempt was also made to evaluate whether these filter feeding carp could detect and ingest unattached bacteria by exposing them to the bacterium Chromobacterium violaceum in suspension. Examination of the gut contents of the exposed fish showed that the numbers of H. molitrix and L. rohita ingesting viable bacteria increased with the concentration of the bacterial suspension and with exposure time. However C. catla ingested far fewer bacteria per unit time than the other two species

Prognostic role of robinson cytological grading system in breast cancer in correlation with the histological grading of modified bloom richardson in Iraq

Background: The breast cancer is increasing in developing countries and the management options are widened, therefore providing the surgeon with accurate prognostic information on which the mode of therapy will be chosen became so important. Robinson grading system was found to be useful in grading breast carcinoma in fine needle aspirates. The objectives of the study were to estimate the benefits of using Robinson grading system in fine needle aspiration for breast cancer and to estimate the correlation of Robinson grading system in fine needle aspiration with histological grading.Methods: There were Seventy cases of invasive ductal carcinoma was graded on FNA aspirates by Robinson grading system using six cytological parameters (cell dissociation, cell size, cell uniformity, nucleolus, nuclear margin, and nuclear chromatin).Results: The concordance rate between grade I tumors on cytology and histology was 100%, while for grade II tumors it was 62.5% and for grade III tumors it was 100%. The absolute concordance rate was 87.5%, the Spearman rank correlation coefficient (r) was 0.762, p value was (0.00), the sensitivity of Robinson’s cytological grading system in cytological grade I tumors was 73.33% and specificity was 100%. In cytological grade II tumors the sensitivity was 100% and specificity was 76% and in cytological grade III tumors the sensitivity is 100% and specificity was 100%.Conclusions: Robinson’s cytological grading of breast carcinoma correlates well with Bloom-Richardson’s histological grading system and could be a helpful parameter in selecting a neoadjuvant treatment for the breast cancer patients on fine needle aspiration cytology alone

Seasonal and sex related haematological variations of the freshwater spiny eel, Mastacembelus armatus reared in the cemented cisterns

The seasonal and sex related haematological vanatlons in the freshwater spiny eel Mastacembelus armatuswere studied during summer from April to June 2001 and winter from November 2001 to January 2002. In total 60 fish (30 males and 30 females) ranging from 30- 55.6 cm in total length and from 55-95.5 g in weight were collected from the culture stock maintained in the cemented cisterns. It was observed that the values of the total erythrocyte count (TEC), haemoglobin concentration (Hb ), haematocrit values, packed cell volume (PCV) and neutrophil count were significantly higher (P< 0.05) in males than the females during summer (April to June- on-set of breeding season). Females were observed to have remarkably higher values (P< 0.01) of erythrocyte sedimentation rate (ESR), total leucocyte count (TLC) and thrombocyte count during summer. On the other hand, insignificant variations in the various haematological parameters were noticed during winter (November to January) between the two sexes of M. armatus

Size related feeding patterns and electivity indices of silver barb (Barbodes gonionotus Bleeker) from a pond, Bangladesh

The feeding patterns with respect to quality and quantity of food of silver barb, Barbodes gonionotus varied with their size and development. The results indicated that the fish in the size group I (7-25 mm TL) were fairly omnivore with particular liking for rotifera, green and blue-green algae while the size group II (25.1-44 mm TL) and III (44.1-55 mm TL) were omnivore with higher tendency of feeding on debris, aquatic plants, green algae, blue-green algae and rotifera. However, the fish of the size group IV (55.1-80 mm TL) were found to be herbivore with feeding preference for aquatic plants, green and blue-green algae. In all the size groups, debris was the most dominant food item. Feeding preference of the fish showed clear ontogenetic shift. The electivity indices revealed that the fish were selective feeder

Pengaruh Kualitas Pelayanan Dan Penyediaan Fasilitas Terhadap Kepuasan Konsumen Pada Dealer Panorama Yamaha Motor Di Boyolali

Tujuan penelitian ini adalah untuk mengetahui pengaruh kualitas pelayanan (Keandalan, Daya Tanggap, Jamina n, Empati, Bukti Fisik) terhadap kepuasan konsumen di Dealer Panorama Yamaha Motor di Boyolali dan untuk mengetahui pengaruh penyediaan fasililitas terhadap kepuasan konsumen di Dealer Panorama Yamaha Motor di Boyolali. Hipotesis dalam penelitian ini adalah H1 : Diduga kualitas pelayanan yang terdiri dari 5 dimensi (keandalan, daya tanggap, jaminan, empaty, bukti fisik) memiliki pengaruh yang positif terhadap kepuasan konsumen dan H2 : Diduga penyediaan fasilitas memilki pengaruh yang positif terhadap kepuasan konsumen. Pengambilan sampel dilakukan dengan nonprobability sampling dengan accidential sampling , yaitu teknik penentuan sampel berdasarkan kebetulan, yaitu siapa saja yang secara kebetulan, yaitu siapa saja yang sedang menggunakan jasa di Dealer Panorama Yamaha Motor. Berdasarkan hasil analisis diperoleh kualitas pelayanan mempunyai pengaruh yang signifikan terhadap kepuasan konsumen atau karena t.sig (0,000) lebih kecil dari 0,05 (? ) maka secara signifikan kualitas pelayanan berpengaruh positif terhadap Kepuasan Konsumen dan variabel penyediaan fasilitas mempunyai pengaruh yang signifikan terhadap kepuasan konsumen atau karena t.sig (0,000) lebih kecil dari 0,05 (? ) maka secara signifikan penyediaan fasilitas berpengaruh positif terhadap kepuasan konsumen. Hasil uji F diperoleh hasil F hitung > Ftabel (87,402 > 4,00), maka Ho ditolak, Berarti secara bersama-sama variabel kualitas pelayanan (X1), dan penyediaan fasilitas (X2) berpengaruh signifikan terhadap kepuasan konsumen (Y). Sehingga model yang digunakan adalah fit. Koefisien determinasi diperoleh R square (R2) sebesar 0,643, berarti variasi perubahan variabel kepuasan konsumen dapat dijelskan oleh variabel kualitas pelayanan (X1) dan Penyediaan Fasilitas (X2) sebesar 64,3%. Sedangkan sisanya sebesar 35,7% dijelaskan oleh variabel lain diluar mode

Al-Qur’an dan Problem Ekologi di Indonesia: Ekstensi Pemaknaan Kiamat Sugra dalam Tafsir Ilmi Kementerian Agama Indonesia

The minor resurrection (qiyamah al-sugra) was generally interpreted as the death of an individual human being, meaning that when a person dies, his or her resurrection has arisen. However, in the tafsir entitled Kiamat dalam Perspektif Al-Qur’an dan sains, the minor resurrection was scientifically interpreted and associated with various disasters, including ecological disasters due to human actions that damage the environment. Therefore, this study aims to understand the scientific meaning of the qiyamah al-sugra and assess its relevance to ecological problems in Indonesia. The method used in this research was qualitative in the form of library research. The data analysis methods used in this research include content analysis, hermeneutics, and inductive methods. This research resulted in several findings. First, the scientific interpretation of the qiyamah al-sugra implies an extension of meaning in which the minor resurrection was no longer limited to being defined as death and the beyond. Second, as an institutional interpretation, the scientific interpretation of the qiyamah al-sugra has a specific purpose in constructing ecological awareness in the audience of the tafsir, especially since ecological issues are one of the major concerns of the Indonesian government.Keywords: Qiyamah al-Sugra; Ecology; Ilmi Interpretation of the Ministry of Religio

Optimalisasi Akad Muzara’ah pada Bank Syariah

This article discusses the optimization of muzara’ah contracts in Islamic banks. This article is the result of a literature review and qualitative research. Data comes from literature in the form of books, journal articles, and the internet, which after being collected are analyzed descriptively. The results of the study are muzara’ah is cultivating other people's land such as rice fields or fields in exchange for a portion of the yield (one-half, one-third, or one-quarter), while the labor costs and seeds are borne by the landowner. Ulama have different opinions about the law of muzara’ah, some are permissible and some are forbidden. For those who allow, muzara’ah must meet the pillars and conditions that have been determined. Rukun muzara'ah is landowners, farmers/cultivators, objects of muzara'ah, and Ijab and qabul. The practice of muzara'ah refers to the principles of the Profit and Loss Sharing System. In optimizing the muzara'ah contract on Islamic banks, it is necessary to improve the bank system according to the real vision of the Islamic bank and improve the agricultural system. Muzara'ah financing is very important for farmers who want to develop their agricultural land so that they can create mutual benefit, which means good quality and income from individuals and socially. Therefore, Islamic banks play an important role in implementing the muzara'ah contract in Indonesia, of course with the support of the community and government, including through controlling demand and supply, fixing prices, spurring the emergence of an investment climate, not stopping improving the quality of human resources, and maximizing technology