The purpose of this study was to obtain an effective concentration of neem seed extract (Azadirachta indica A. Juss) to kill Spodoptera frugiperda J. E. Smith maize pests in the laboratory. This research was conducted experimentally using a completely randomized design (CRD) consisting of five treatments and four replications in order to obtain 20 experimental units. Parameters observed were in…
The aim of this research was to obtain the physical activation time for the characteristics of activated charcoal from palm fronds in accordance with Indonesian National Standard No. 06-3730-1995. The research was carried out experimentally using a completely randomized design (CRD) consisting of five treatments and three replications. The treatment in this study ware physical activation with a…
ZULANDA, student ID 1710346357, Optimization Model for Increasing Tree Absorption due to CO2 Emissions from Motorized Vehicles through the Utilization of Green Roadways and City Parks for Climate Change Adaptation in Pekanbaru City, under supervised by Yusni Ikhwan Siregar, Sukendi, and Imam Suprayogi. The dynamics of global response to climate change, which results in an increase in Earth's t…
Service activities are the process of fulfilling service needs in accordance with the Law. Public services can be categorized as effective if the public gets easy service with short, fast, precise and satisfying procedures. The success of public services is determined by the government's ability to improve the work discipline of service officers. In the Regulation of the Chief of the Republic o…
Perahu Begandung a culture from the Kuantan Mudik sub-district, Perahu Baganduang is held for Manjopuik Limau, Manjopuik Limau is a tradition of single girls in groups or individually visiting a girl's house with the aim of looking for mate or just to stay in touch and enliven the Eid al-Fitr holiday, where before this event is held the men in one of the villages have appointed a woman for Manj…
This research delineates Indonesia's cultural diplomacy through Pencak Silat towards Kazakhstan from 2019 to 2023. Pencak Silat, an indigenous martial art, represents a cultural heritage of Indonesia. Pencak Silat has undergone rapid development and dissemination to foreign countries, including Kazakhstan. Kazakhstani society has adopted Pencak Silat as a fundamental martial art and has achieve…
This study aims to determine and analyze the extent of the role of the Indragiri Hilir Regency Education Office in carrying out its main tasks and functions and to determine the factors causing children to drop out of school. The main problem in this study is the lack of interest in children to go to school, weak family economy, and friends. This study uses a qualitative research method with da…
Actors MSMEs are faced with various challenges that affect business success, the number of MSMEs and increasingly tight competition encourage MSME actors to be able to compete. Government efforts in providing guidance through incubation programs. However, the large number of MSMEs makes it difficult for the government to make decisions, so a DSS is needed that can provide recommendations in mak…
The use of physiological NaCl solution as a semen diluent was one of the breeding technologies applied in artificial spawning to increase the production value of aquaculture. This study aimed to determine the effect of different concentrations of physiological NaCl solution on the quality of spermatozoa and the hatching rate of koi fish eggs (Cyprinus rubrofuscus). The method used in this resea…
Polymesoda expansa belongs to the class of Bivalves that are found in mangrove forests, their habitat is between mangrove roots on muddy substrates, sandy mud and mangrove litter. This study aims to determine the abundance of P. expansa in Anak Setatah Village, Kepulauan Meranti Regency, examine the size frequency distribution, and investigate the distribution pattern in the area. The study con…
This study aims to determine the effect of using different types of bait on the catch results of umbrella traps (bubu payung) in the Kampar River, Kuok Village. The research was conducted over a period of 10 consecutive days using three types of bait: coconut pulp (ampas kelapa), rice bran (dedak padi), dan oil palm fruit waste (berondolan sawit),. The research method used was a field experime…
Apar Village, located in Pariaman City, is an area with significant mangrove forest potential that plays an important role in maintaining water quality and serving as a natural spawning ground for marine organisms. The presence of phytoplankton in aquatic ecosystems can provide valuable information about water conditions, as phytoplankton are not only primary producers but also act the largest …
This research was conducted with the aim of knowing the structure of the gastropod community in the coastal area of Parupuk Tabing Village, Padang City, West Sumatra. Knowing the structure of the gastropod community in an area has a major impact on the sustainability of the area. This is because the living conditions of gastropods can be an illustration of the water quality in the area. Therefo…
Environmental damage is caused by coastal reclamation to advance the economic sector in Batam City. Reclamation can cause changes in the coastline of Batam City. This study aims to determine the extent of changes in the coastline that occurred in Batam City from 2003-2023 and to understand the pattern of ocean current circulation in Batam City before reclamation in 2003 and after reclamation in…
Catfish is one of the leading freshwater aquaculture commodities in Indonesia that has high economic value and rapid growth. The demand for catfish continues to increase due to its high protein content and low cholesterol levels. However, the intensive cultivation system that is commonly used often causes a decrease in water quality due to the accumulation of leftover feed and metabolites. Decr…
Nutrients contained in liquid tofu waste makes it as one of the alternatives to nutrients in Chlorella sp. media culture. The purpose of this research is to find the effects of the addition of fermented liquid tofu waste to the growth of Chlorella sp. and to find the best dose for Chlorella sp. growth. The research was conducted from August to September of 2023, lasting up to 14 days at the Lab…
one alternative that can be done to increase the growth of catfish, namely by adding herbal feed to the feed givento the fish. thisstudyin April - May2025 which took place in the laboratory of technologyand cultivation of the facultyof fisheries and marine sciences, Riau University, Pekanbaru, Riau. the method used in this study is the experimental method using a completely randomized design (C…
Crayfish are a genus belonging to the freshwater crustacean group that has relatively high market demand. Red tilapia is a popular type of freshwater fish among both households and restaurant businesses due to its affordable price and high protein content. The polyculture system involves cultivating multiple species in the same pond, each with different dietary needs, thereby minimizing competi…
Pustina strain catfish is a fish produced based on a new variety in 2009 with a fast growth strain. One of the leading commodities favored by the public because of its economic value and high protein content. The adhesive of eggs become a factor in failure in cultivation efforts, so the eggs are soaked using an adhesive remover solution, namely a solution of Terminalia cattapa leaf extract, bec…
Mantis shrimp (Squilla mantis) is one of the main catch commodities of fishermen in the waters of Sinaboi. A decline in catch volume is suspected to be related to ectoparasitic infections. This study aims to identify the types of ectoparasites infecting mantis shrimp and to evaluate the level of infection based on the affected body organs and the environmental conditions of the waters. This res…