Online learning is learning that uses the internet network with accessibility, connectivity, flexibility, and the ability to bring up various types of learning interactions. Satisfaction is a person's feelings of pleasure or disappointment that arise after comparing his perceptions/impressions of the performance or results of a product and his expectations. Research on student perceptions of online learning is limited to aspects of teaching and learning, the ability of lecturers, facilities and infrastructure. To get results from the perception or opinion of a student from the level of satisfaction of online lectures, it can be done using the Fuzzy logic mamdani method and for calculations using the Slovin formula.

Broiler farms in tropical areas have to deal with heat stress. Dried rice, a waste recycle product cheaper than corn, contains resistant starch that is mostly excluded from calorie-emanating metabolism yet advantageous for digestion. This study analyzes its potential to function as heat stress suppressor. Employing completely randomized design of three treatments in five repetitions, variables observed were panting frequency, heart weight, and blood profiles (leukocyte, heterophile, lymphocyte, and H:L ratio). The data gained were run through ANOVA, followed by LSD. T1 was of 100 % basal feed, T2 20 % dried rice spread atop 80 % basal feed, and T3 20 % dried rice thoroughly mixed with 80 % basal feed. The lowest panting frequency was of T2 (2.7 s −1 ), significantly different from T3 (2.9 s−1 ) and T1 (3.1 s −1 ). The lowest heart weight was also of T2 (0.44 mg 100 g −1 ), followed by T3 (0.49 mg 100 g −1 ) and T1 (0.57 mg 100 g −1 ). As of blood properties, the lowest H:L ratio was of T1 (0.22), significantly different from T3 (0.47) and T2 (0.59). To sum it up, dried rice is influential in relieving heat stress in broiler.

Arboretum is a Rokan Hulu Regency, there are various kinds of attractions, which consist of cultural tourism, culinary tourism, historical tourism, religious tourism and nature tourism. The natural tourism object in Rokan Hulu Regency is Aek Martua Waterfall. This waterfall has a height ranging from 15 meters to the highest reaching 40 meters. The uniqueness and privilege, makes many tourists call the Aek Martua Waterfall as the Thousand Stairs Waterfall. That is what creates a tourist attraction so that tourists visit there. The purpose of this study is to identify the potential and attraction of Aek Martua's water. Potential measurement using the One Score-One Indicator System Method, namely giving a score of 1 (one), for 1 (one) indicator, with the scale used is 1-7 (a development of the Likert scale 1-5). The use of scale 1-7 is applied because it is in accordance with the character of Indonesian society which articulates a value in great detail (Avenzora 2008). Value score 1-7. Potential Assessment and Tourism Attraction consisting of; (1) Uniqueness (2) Beauty (3) Scarcity (4) Timeliness (5) Accessibility (6) Sensitivity (7) Social Function with the average Potential and Attractiveness value of Aek Martua Waterfall (5.11), i.e. attractive, so what needs to be added are facilities and infrastructure as well as one-stop tour management.

Unilak agro-tourism has the same potential as other agro-tourism, which consists of fruit plants such as; Durian, avocado, longan, honey pumpkin, peanut, long bean, cucumber, red ginger, cassava and livestock catfish and tilapia. Unilak Agrotourism has not been organized as well as Agrotourism in general, the cropping pattern is still not regular, so it is necessary to provide Unilak Agrotourism. Agro-tourism training aims to increase understanding in the context of fostering agro-tourism managers as an alternative tourist attraction. These efforts include community development in realizing synergy and agriculture that can produce social, economic growth and community organization. The method used is mentoring. Assisting the community to have knowledge of how to manage agro-tourism and cropping patterns that have a tourist attraction. The results obtained are community knowledge about agro-tourism management such as: a) the community knows the importance of the benefits of agro-tourism b) the community has understood how to identify potential attractions

The fundamental part of the ecological system in the activity cycle of living things is birds. The distribution and existence of flora in an area is caused by birds. Changes in land cover in the context of agroforestry development at Lancang Kuning University can affect changes in environmental conditions, one of which is the life of wildlife, especially birds. This research aims to: Identify the diversity of birds and flora as a place for bird activities in agroforestry development areas. How to collect bird data with counting points. Bird logging with encounters and trails. Found 29 species with a family of 16. Bondol Peking, Sparrow and Cucak Kutilang are bird species that are often present (individual) 25, 15 and 10. The H' value is 2.94, the E value is 0.87 and the value is 0.87, R as much as 5.78. Cucak Kutilang and Perkutut Jawa have the highest KR values, namely 12.20% and 10.11%, respectively. Types of vegetation as a source of food in the form of trees (15 species), enrichment plants (4 species), agricultural crops (12 species) and types of grasses