This study aims to investigate: (1) the difference in MYOB accounting learning performance of students taught by using tutorial video as a learning media and those taught by using power point in a conventional type of learning, (2) the difference in MYOB accounting learning performance of students with high level of prerequisite competence and those with low level of prerequisite competence, (3) the interaction between the use of tutorial video as a learning media and prerequisite competence in MYOB accounting learning. This study is a quasi-experimentation research with a population of all students of class XII.K in state vocational high school (Sekolah Menengah Kejuruan Negeri-SMKN) 1 Batusangkar. The sampling technique used was purposive sampling. The sample in this study was students of class XII.K1 as the experimental class and students of class XII.K2 as the control class. The data analysis technique employed was two-way ANOVA. The findings of this study demonstrated that (1) MYOB accounting learning performance of the students taught by using tutorial video tutorial was higher than those taught by using power point in a conventional learning setting, (2) students with high level of prerequisite competence showed better learning performance compared to those with poor mastery of the competence required for MYOB accounting learning, (3) there is no interaction between instructional media and prerequisite competence on MYOB accounting learning of 12 th grade students in SMKN 1 Batusangkar.

Desa Padang Birik-Birik was located in the North Pariaman District of Pariaman City and the village near to the beach. The daily activities of women in this area are housewives and farming. During the Covid-19 pandemic the economic conditions of the community became increasingly difficult so that the additional alternative funds were needed to meet family needs. Nile Tilapia (Oreochromis niloticus) cultivation techniques with an aquaponic system can be used as a source of additional income in addition to meet the nutritional needs of the family. Nile Tilapia cultivation techniques with an aquaponic system can increase the income of housewives during the Covid-19 pandemic. Aquaponic method is a land and water saving technology that can be combined with various vegetable crops. Meanwhile, vegetable crops from the aquaponic system can also be consumed to meet the nutritional needs of the family. This community service activity is carried out by counseling and direct practice. Presentation of material on Nile Tilapia cultivation techniques using the aquaponic system includes how to assemble tools, direct practice how to plant seeds, and how to maintain them. The result of the activity was that the enthusiastic community received the material presented and seriously followed the activity until it was finished. The community is committed to trying to make this aquaponic cultivation system themselves in their respective homes.

Pomfret fish (Tracinotus blochii) is a new commodity that has the opportunity to be developed in Indonesia with market demand and a fairly high price. In cultivation activities, quality seeds play an important role in the success of cultivation. This study aims to see the performance of hatchery and rearing of star pomfret larvae through parameters of egg fertilization degree, egg hatching rate and survival rate of star pomfret larvae. The research method used is a survey method, data is collected through observation, documentation, interviews and direct participation in star pomfret hatchery activities. The data obtained were analyzed descriptively. The hatchery of star pomfret through natural spawning during the study had good performance starting from the degree of fertilization, hatching rate and survival rate of larvae. The total eggs produced in the star pomfret hatchery reached 680,000 eggs with a Fertilization Rate (FR) of 74.5% and a Hatching Rate (HR) of 85.78%. After rearing larvae for 28 days, the survival rate of star pomfret larvae was 33.75%. This is supported by the water quality during maintenance which shows the optimal range.

The purpose of this study was to identify diseases in gariang fish in the Lubuk larangan river. The research locations used were Nagari Guguak Kuranji Hilir, Sungai Limau District, Nagari Sikucur Barat, District V Koto Kampung, Nagari Lareh Nan Panjang Selatan, District VII Koto Sungai Sariak and Nagari Sicincin, District 2 x 11, six research environments were carried out from September to December 2021. Fish samples were tested in the laboratory at the Padang Fisheries Product Quarantine and Quality Control Center to calculate the parasite prevalence. The results of this study are the type of Saprolegnia sp was found at all lubuk larangan sample point locations with the highest prevalence of 30%. Dactylogyrus sp and Trichodina sp also continued to attack gariang at all sample points with the second highest prevalence, namely 15%. Aeromonas caviae was found at 3 points, sikucur barat, lareh nan panjang selatan and sicincin 2x 11 enam lingkung with a prevalence of 10%. Plesiomonas shigelloides was found in 2 locations, guguak kuranji hilir and Sicincin 2x11 enam lingkung, while Aeromonas sobria attacked 3 sample locations, guguak kuranji hilir, 2x11 enam lingkung and lareh nan panjang selatan with a prevalence rate of 8%. Hafnia alvei, Actinobacillus linieressi and Argulus sp prevalence rate of 5%. The highest prevalence at 30% indicates that the level of parasitic attack is generally with the usual infection. The results of Intensity of Ind/parasites were found as many as 28 at all sample points of the lubuk larangan river, the most commonly found in 2 x 11 enam lingkung, parasites and the least in sikucur barat with an intensity of 6. For Ind/tail intensity at 4 sampling points gariang fish (Tor tambroides) at 2.8 which means a low infection rate.