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Biochemical responses of painted spiny lobster Panulirus versicolor fed with molluscs meal and fish meal Kurnia, Agus; Hamzah, Muhaimin; Idris, Muhammad; Muskita, Wellem Henrik; Abidin, La Ode Baytul; Sabilu, Kadir; Yusnaini, Yusnaini; Balubi, Abdul Muis; La Usaha, La Usaha; Fatmawati, Famawati; Razak, La Ode Abdul; Khairunnisa, Khairunnisa
Aceh Journal of Animal Science Vol 9, No 3 (2024): December 2024
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/ajas.9.3.42131

Abstract

Molluscs are one of the most preferred ingredients for marine lobster feed because the mollusc has a higher protein content. Therefore, this material has the potential to substitute the fish meals and reduce the cost for feeding lobsters. The objective of the present study was to investigate digestive enzyme activities and growth performance of painted spiny lobsters fed with a combination of mollusc meal and fish meal in the diet. Four experimental diets were formulated to contain 20% sardine fish meal and 20% mackerel fish meal (Diet A). 10% Telescopium muscle meal (TMM) + 15% golden snail meal (GSM) + 15% scallops muscle meal (SMM) (Diet B). 15% TMM + 10% GSM + 15% SMM (Diet C) and 15% TMM + 15% GSM + 10% SMM (Diet D). A total of 24 juvenile painted spiny lobsters were distributed into twelve plastic tanks (two lobsters/tank) with a size of 60 45 60 cm and reared in a recirculating system for a 50-day rearing period. The lobster was fed only one time a day (05:00 pm) with a dosage of 3% biomass weight. The results showed that the enzyme activities of lobsters fed with combined mollusc meals were higher than the enzyme activity in the lobsters fed with the fish meal combination diet. The weight gain of the painted spiny lobster fed with mollusc meal was higher than the lobster fed with a fish meal diet. Based on results of enzyme activities and growth performance. It was concluded that the combination of mollusc meal in the formulated diet was more suitable than the combination of fish meal for optimum enzyme activities and growth performance of painted spiny lobster
Politeness in Expressive Speech Acts: A Cyber Pragmatics Approach Fatmawati, Famawati; Ningsih, Rika
Journal of Languages and Language Teaching Vol. 12 No. 4 (2024): October
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jollt.v12i4.12620

Abstract

This research is motivated by the tendency of netizens to convey psychological attitudes on social media. The delivery of these psychological attitudes sometimes needs attention to language politeness. This research is necessary because it answers the challenge of understanding how politeness of language changes in the context of social media supported by digital technology, which is rarely discussed in conventional pragmatic studies. The problem in this study is how politeness of expressive speech acts from a cyber pragmatics perspective. This study explores and elaborates on the realization of politeness maxims politeness principles based on the perspective of cyber pragmatics. The approach used in this study is qualitative, and the content analysis method was applied. This study's data source is netizens' language activity on the comments page of the Instagram account @detikcom on June 9, 2023, totaling 2509 comments. The data in this study amounted to 511 data, which are expressive speech. The data collection techniques used are documentation techniques and reading techniques. The data analysis technique is carried out in three stages: identification, classification, and interpretation of research results. Regarding the principle of politeness, netizens' comments are considered impolite based on the maxim of tact, the maxim of approbation, and the maxim of agreement, which significantly impact online communication behavior. The reason is that netizens do not maximize their benefits, approbation, and conformity with other parties but instead express their psychological attitudes by throwing out insults, ridicule, and rejections that can cause harm to other parties. Meanwhile, netizens are considered polite for the maxim of modesty and sympathy. Most sympathy is directed at the Indonesian people who must bear the country's debt.