Chemical composition of whole body and fillet of slaughter sized Atlantic salmon (Salmo salar) and rainbow trout (Oncorhynchus mykiss) farmed in Norway in 2020

The fish is the end-product in fish farming, but updated data on the composition of slaughter sized farmed salmon and trout are still scarce. The body composition of farmed salmonids changes over time as farming technology, farming routines, feed and genetics develops. Knowledge of the body composition of the farmed fish thus depends on data on today’s produced fish. The body composition also varies with time of the year, geography, feed composition and feed intake. Analysis of samples representative of the whole Norwegian production of salmon and trout requires fish collected from the different geographic areas of production, sampled at different times throughout the year, and fish fed feeds from different feed producers. Atlantic salmon and rainbow trout was collected in summer and in winter. Salmon was collected at four different locations, and trout at two different locations at each sampling time. Whole body and fillet of salmon and trout was analyzed. This study reports the average content of energy, dry matter, ash, crude protein, crude lipids, iron, potassium, calcium, copper, magnesium, sodium, zinc and phosphorus in whole body and fillet of Atlantic salmon and rainbow trout produced in Norway in 2020. Moreover, are the amino acid profiles and the fatty acid profiles given.Chemical composition of whole body and fillet of slaughter sized Atlantic salmon (Salmo salar) and rainbow trout (Oncorhynchus mykiss) farmed in Norway in 2020publishedVersio

Utilization of feed resources in the production of Atlantic salmon (Salmo salar) in Norway: An update for 2020

The utilization of feed resources in Norwegian salmon farming has previously been reported for 2010, 2012 and 2016. This paper presents an update for 2020, giving an overview of the feed ingredients used and retention of nutrients in fillet and whole salmon for the entire Norwegian salmon production. A total of 1,976,709 tonnes of feed ingredients were used to produce 1,467,655 tonnes of salmon. The feed was produced from 22.4 % marine ingredients, 73.1 % vegetable ingredients and 4.1 % micro ingredients such as vitamin and mineral premixes, astaxanthin and crystalline amino acids. In addition, 0.4 %, or 8126 tonnes, of single cell protein, insect meal, fermented products and microalgae were used in salmon feeds. Norwegian marine protein and marine oil constituted 8.3 % of the ingredients. The remaining 91.7 % of the ingredients were imported. The feed conversion factor was 1.35 if calculated from feed ingredients ‘as is’, or 1.25 if calculated form ingredients on dry matter basis. The retention of energy, dry matter, protein, fat, EPA + DHA and phosphorus from feed was 39 %, 33 %, 34 %, 57 %, 49 % and 25 %, respectively, in whole salmon. In fillet, the corresponding retention rates were 25 %, 21 %, 25 %, 35 %, 32 % and 12 %, respectively. The feed ingredients used and the utilization of feed in 2020 resembled that of 2016, except that there was an increase in the amount produced in 2020 and a slight increase in the economic feed conversion ratio (eFCR).Utilization of feed resources in the production of Atlantic salmon (Salmo salar) in Norway: An update for 2020publishedVersio

Utilization of feed resources in the production of rainbow trout (Oncorhynchus mykiss) in Norway in 2020

The utilization of feed resources in Norwegian farming of Atlantic salmon has been reported for 2010, 2012, 2016 and 2020. The present paper is a corresponding documentation for farming of rainbow trout in Norway in 2020. 89,667 tonnes of rainbow trout were produced, which is 6 % of the amount of salmon produced. The 116,990 tonnes of ingredients used for feed sold as trout feed were produced from 13.4 % marine protein sources, 10.8 marine oils, 39.7 % vegetable protein sources, 19.9 % vegetable oils, 12.1 % carbohydrate sources and 3.9 % micro ingredients, which include vitamin and mineral premixes, crystalline amino acids and astaxanthin. In addition, was 0.2 %, or 257 tonnes, of single cell protein, insect meal, fermented products and microalgae used in trout feed. Norwegian fish meal and fish oil constituted 8.8 % of the ingredients, and the remaining 91.2 % were imported ingredients. The economic feed conversion factor (FCR) was 1.30, 1.21 or 1.44 if calculated from feed ingredients ‘as is’, feed ingredients on dry matter basis, or from registered traded feed, respectively. The trout retained 37 %, 43 %, 33 %, 63 % and 63 % of the feed’s dry matter, energy, protein, fat and EPA+DHA, respectively, in the whole body. In fillet, the corresponding retention values were 21 %, 25 %, 23 %, 34 % and 35 %, respectively. The feed utilization in trout was slightly overestimated because of some salmon feed used in the trout production. The feed ingredients used and the feed utilization in trout farming in 2020 were similar to the data for salmon farming, but trout is produced in a smaller quantity.Utilization of feed resources in the production of rainbow trout (Oncorhynchus mykiss) in Norway in 2020publishedVersio

PEMBELAJARAN MENULIS KARANGAN DESKRIPTIF MELALUI MEDIA LAGU BAGI PEMBELAJAR BIPA : studi kasus terhadap pembelajar bipa tingkat menengah di balai bahasa upi

Penelitian yang berjudul “Pembelajaran Menulis Karangan Deskriptif Melalui Media Lagu Bagi Pembelajar BIPA (Studi Kasus terhadap Pembelajar BIPA Tingkat Menengah di Balai Bahasa UPI)” ini dilatarbelakangi oleh kesulitan menulis yang dialami oleh salah satu pembelajar BIPA pada tingkat menengah 3. Kesulitan menulis yang dialami oleh pembelajar BIPA tersebut umumnya dialami oleh pembelajar BIPA, tetapi menurut teori yang diungkapkan oleh Mulyono (2004,hlm.41) bahwa pembelajar BIPA pada tingkat menengah mampu mengembangkan karangan narasi atau deskripsi. Dari ungkapan tersebut maka timbul pertanyaan mengapa pembelajar pada tingkat menengah 3 tersebut masih kesulitan dalam menulis, lalu faktor apa yang menyebabkan pembelajar tersebut mengalami kesulitan menulis. Oleh karena itu, peneliti merasa tertarik untuk mengadakan penelitian dengan tujuan memahami, mendeskripsikan, dan mencari pemecahan masalah atas kesulitan menulis yang dialami oleh pembelajar tersebut. Selain itu, peneliti mencoba mencari tahu apakah tindakan yang diberikan oleh peneliti dapat berpengaruh terhadap kemampuan menulis pembelajar tersebut. Berdasarkan hal tersebut, metode yang digunakan peneliti adalah metode studi yang dipaparkan secara kualitatif. Metode studi kasus digunakan untuk mendapatkan data secara rinci agar tindakan yang diberikan sesuai dengan kemampuan pembelajar BIPA yang mengalami kesulitan menulis. Hasil yang didapat selama melalui beberapa tahap penelitian ternyata berpengaruh terhadap kemampuan menulis pembelajar tersebut. Faktor yang paling berpengaruh adalah motivasi. Pembelajar tersebut memiliki motivasi yang kurang dalam pembelajaran menulis, dan menunjukkan perilaku tidak positif terhadap pembelajaran menulis, karena pembelajar tersebut tidak suka menulis. Pembelajar cenderung menghindari pembelajaran menulis. Selain itu pun pembelajar merasa tidak percaya diri ketika menulis karena menurut pembelajar tata bahasa Indonesia sangat sulit dan tidak beraturan. Hasil tes menulis menunjukkan adanya perkembangan menulis setelah dilakukan tindakan berupa pembelajaran menulis karangan deskriptif melalui media lagu. Selanjutnya, diharapkan adanya penelitian lebih lanjut terhadap pembelajar BIPA yang mengalami kesulitan menulis.----------The research entitled "Learning to write descriptive essay through the use of song for BIPA’s learners” (Study Case Against BIPA Learner Intermediate Language Center UPI)" is motivated Posted Yang experienced difficulty writing Posted prayers One learner BIPA for Intermediate 3. The experienced difficulty writing Posted BIPA is generally experienced learners Posted learners BIPA, but according to the theory disclosed by Mulyono (2004, hlm.41) that learners BIPA for Intermediate able to develop a narrative essay or description. The phrase is so arises from question why for Intermediate 3 learners are still difficulties hearts write, then what factors cause these learners have difficulty writing. By therefore, researchers were interested in conducting research purposes with understand, describe, and see solving differences Yang experienced difficulty writing the Posted learners. In addition , the industry researcher find trying to know whether the action which, given posted researchers may affect the learner's ability to write. Based on the case, researchers used the method is a method of Case Studies which operates described qualitatively. Case Study method used for get detailed operating data that action given in accordance with the ability of the learner BIPA had difficulty writing. The results obtained during phase research through influential against the learners' writing ability. Test results indicate a write developments write taxable income form of action learning descriptive essay writing songs through the media. Furthermore, it is expected for further studies of learners BIPA had difficulty writing

KEMAMPUAN PENALARAN STATISTIS, KOMUNIKASI STATISTIS, DAN ACADEMIC HELP-SEEKING MAHASISWA MELALUI PEMBELAJARAN BERBASIS PROYEK BERBANTUAN ICT

Penalaran dan komunikasi statistis, serta academic help-seeking (AHS) merupakan aspek penting bagi perkembangan pengetahuan mahasiswa. Komunikasi statistis penting untuk memperjelas suatu masalah berdasarkan karakteristik data statistik dan penalaran statistis berperan membentuk keterampilan mahasiswa menggunakan konsep, aturan dan proses statistika, sementara AHS merupakan strategi self-regulatory penting yang memberikan kontribusi untuk belajar statistika. Kompetensi mahasiswa terhadap ketiga aspek tersebut masih rendah sehingga perlu dikembangkan dalam pembelajaran pengantar statistika. Salah satu model pembelajaran alternatif yang dapat mencapai kompetensi dimaksud adalah pembelajaran berbasis proyek berbantuan ICT (PBP berbantuan ICT). Penelitian ini bertujuan untuk menganalisis secara komprehensif pencapaian dan peningkatan kemampuan penalaran statistis (KPS) dan kemampuan komunikasi statistis (KKS), serta pencapaian AHS mahasiswa melalui PBP berbantuan ICT. Penelitian ini menggunakan metode campuran dengan desain kelompok kontrol pretes-postes. Populasi dalam penelitian ini adalah mahasiswa S1 program studi Pendidikan Matematika pada salah satu universitas di Maluku Utara. Instrumen pengumpulan data meliputi: tes kemampuan awal statistis (KAS), pretes dan postes KPS dan KKS, skala AHS, lembar observasi dan wawancara. Analisis data menggunakan statistik uji: t, t^', Mann-Whitney U, anova dua jalur, dan uji asosiasi. Hasil penelitian menunjukkan bahwa: (1) pencapaian KPS, KKS, dan AHS mahasiswa yang memperoleh PBP berbantuan ICT secara signifikan lebih tinggi daripada mahasiswa yang memperoleh pembelajaran konvensional (PK), (2) Peningkatan KPS dan KKS mahasiswa yang memperoleh PBP berbantuan ICT secara signifikan lebih tinggi daripada PK ditinjau dari KAS (tinggi dan sedang), (3) Peningkatan KPS dan KKS mahasiswa yang memperoleh PBP berbantuan ICT dengan KAS tinggi dalam kategori tinggi, KAS (sedang, rendah) dalam kategori sedang, dan mahasiswa yang memperoleh PK dengan KAS (tinggi, sedang, rendah) dalam kategori sedang, (4) Tidak terdapat pengaruh interaksi antara faktor pembelajaran dan KAS terhadap pencapaian dan peningkatan KPS dan KKS mahasiswa, (5) Tidak terdapat pengaruh interaksi antara pembelajaran dan KAS terhadap pencapaian AHS mahasiswa, (6) Ada asosiasi yang signifikan dan bersifat positif antara KPS dan KKS mahasiswa, KKS dan AHS mahasiswa yang diterapkan melalui PBP berbantuan ICT, namun tidak ada asosiasi yang signifikan antara KPS dan AHS, dan (7) Asosiasi antara KPS dan KKS dalam kategori kuat, antara KPS dan AHS dalam kategori kurang kuat, dan antara KKS dan AHS dalam kategori cukup kuat. PBP berbantuan ICT dapat digunakan sebagai salah satu modal alternatif dalam pembelajaran pengantar statistika untuk meningkatkan KPS dan KKS, serta menciptakan academic help-seeking statistis mahasiswa. ---------- Statistical reasoning and communication and academic help-seeking (AHS) are important aspects for students’ knowledge development. Statistical communication is important to clarify a problem, based on the characteristics of statistic data and statistical reasoning plays role to form students skill in using concepts, rules and statistics process. While academic help-seeking is self-regulatory strategy that contributes to learn statistics. The students still did not have enough ability in three competencies. One of alternative models enhances students’ ability in those three competencies is project-based learning assisted ICT (ICT-assisted PBL). This study aims to analyze comprehensively the achievement and improvement of statistical reasoning ability (SRA) and statistical communication ability (SCA), as well as students’ AHS through ICT-assisted PBL. This study used a mixed methods with pretest posttest control design. The population of this ware undergraduate students of Mathematics Education program at a State University in North Maluku. Data collection instruments include: prior statistical knowledge (PSK) test, pre-test and post-test of statistical reasoning ability and communication statistical ability, AHS scale, observation note and interviews. Analysis statistic used test: t, t', Mann-Whitney U, two-ways ANOVA, and the association test. The results showed that: (1) the students who got with ICT-assisted PBL have higher achievement in SRA, SCA, and AHS than students who got convensition learning (CL), (2) high, middle and low PSK students who got ICT-assisted PBL have enhancement and achievement significantly higher than CL. (3) Improved students’ AHS behavior who got ICT-assisted PBL bases on student’s PSK high, medium and low are in the low category, (4) there is a direct effect of the learning factor and prior statistical knowledge (PSK) to the students’ achievement and improvement of SRA, SCA and AHS, but simultaneously there is no interaction between factors learning and PSK to the student’s achievement and improvement of SRA and SCA, (5) there is not interaction between learning factors and PSK on students’ academic help-seeking, (6) there is significant assosiation and positive between student’s SRA and SCA, student’s SCA and AHS who receive ICT-assisted PBL, but not is significant association between student’s SRA and AHS, and (7) The association between student’s SRA and SCA in the highle category, between the student’s SRA and the AHS in the lower category, and between student’s SCA and AHS in middle category. ICT-assisted PBL can be used as an alternative model in teaching and learning statistics to enhancement statistical reasoning ability and statistical communication and students’ statistical academic help-seeking

Dietary Level of the Omega-3 Fatty Acids EPA and DHA Influence the Flesh Pigmentation in Atlantic Salmon

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Photoperiod in recirculation aquaculture systems and timing of seawater transfer affect seawater growth performance of Atlantic salmon (Salmo salar)

Production of Atlantic salmon smolts in recirculation aquaculture systems (RAS) is growing, and novel production protocols using continuous light in RAS are being implemented in the industry. In the present study, Atlantic Salmon parr were exposed to either a traditional protocol (short-day winter signal [12:12 L:D] for 6 weeks) or to continuous light. Both photoperiods were applied in freshwater (FW) and brackish water RAS. Salmon from all treatments were transferred to seawater pens at 200 and 600 g and grown until slaughter size. A control group was smoltified with a 6-week short-day winter signal and kept in FW until sea transfer at 100 g. Continuous light gave a higher growth rate in RAS but reduced feed intake and growth and increased feed conversion ratio during the first 8 weeks in seawater. However, at slaughter, fish exposed to continuous light was bigger than fish given a winter signal because of the higher growth rate in RAS. Slaughter weight was lowest in fish transferred to sea at 600 g, despite having the highest day-degree sum during their life span. The best performing group was the control group transferred at 100 g. All treatments handled transfer to seawater and survival and maturation were not affected by the treatments in RAS. The immune status was examined with a multigene expression assay on BioMark HD platform from parr stage to 5–7 months after seawater transfer. Overall, there was no significant effect of photoperiod or salinity on the expression of the selected immune genes. In sum, the results from this study indicate that using continuous light in RAS may have negative effects on performance shortly after transfer in fish transferred to sea at 200 g, whereas at 600 g, all treatments had reduced growth after transfer irrespective of treatment in RAS.publishedVersio

Gradually decreasing daylength after smoltification induced by “winter signal“ reduced sexual maturation in male Atlantic salmon

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Betydning av tidspunkt og lengde av vintersignal i RAS for prestasjon i sjø ved utsett av stor smolt

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Betydning av tidspunkt og lengde av vintersignal i RAS for prestasjon i sjø ved utsett av stor smolt

Source at https://nofima.no/.Under kontrollerte forhold i kar var det en positiv effekt av et vintersignal kombinert med brakkvann i RAS på vekst etter overføring til sjøvann. Men et vintersignal ga også økt kjønnsmodning i hannfisk når fisken gikk lenge i RAS på kontinuerlig lys etter at vintersignalet var avsluttet. Kjønnsmodning ble redusert når fisken ble satt ut på lav sjøtemperatur. Resultatene fra utsett i sjømerder viste betydelig høyere dødelighet som følge av vintersår og lavere vekst i sjøfase hos stor smolt på henholdsvis 320 og 850 g satt ut i oktober og januar sammenlignet med fisk satt ut i september ved 160 g. Resultatene fra kar med sjøvann viste ikke store forskjeller i TGC mellom de ulike utsettene, og fisk overført på 320 g hadde høyest TGC i kar. Dødelighet i kar med sjøvann var lav, henholdsvis 0, 0,2 og 1,1 % for de tre utsettene. Forsøket i kar med sjøvann viste at den større smolten har et potensial for god vekst i sjøvann, men også høyere risiko for kjønnsmodning, særlig på høy temperatur i sjøfase. Årsaken til at den større smolten var mer sensitiv mot vintersår og hadde høyere dødelighet i merder i sjø enn mindre fisk som hadde gått lenger i sjø før utbruddet startet bør undersøkes nærmere