This study wants to test whether there is an influence between Zakat Knowledge, Religiosity, Culture, Subjective Norms, and Income on Muzaki Minang's zakat interest in paying zakat, with age as a moderating variable. The purpose of this study will be to analyze and describe the effect of Muzaki Minang's interest in tithing by using a theoretical model. The data collection technique used a questionnaire and sampling was done by purposive sampling with a total of 320 respondents. The population in this study is the Muzaki Minang population who live in West Sumatra and outside West Sumatra. The data analysis technique used is descriptive statistical analysis. The results of this study are the knowledge of zakat and culture variables do not affect Muzaki's interest in zakat. While the interest in paying zakat which has a significant and positive effect is religiosity, subjective norms, and income. There is a moderate relationship between income and age with interest in paying zakat. The dominant age factor is early adulthood (20-40 years) compared to old age (>40 years). The findings of this study are helpful input for the leaders of the indigenous people of West Sumatra in strengthening the understanding of the younger generation about Minang customs. With the increasing understanding of adat for the Minang community, they are interested in paying zakat themselves and using zakat as a tool to improve people's welfare.

The main problem in the development of cattle business people in palm plantation, one exeption availibility of forage animal feed whether in quantity n quality. Other side the existence of palm leaves the midrib has been waste of a disturbing and not been utilized by farmers. To the touch technological innovations feed in te form of silage then palm leaves the midrib has been animal feed worthy of in eating of cattle. The purpose of this research is identify the effects the provisio of feed based silage palm leaves midrib increased body weight on cattle beef and analyzing efficiency the cost of animal feed. Research in farmer group Tanjung Keramat in district Kinali, Pasaman Barat in february until april 2017. Respondent are set down in purposive sampling. This research used 18 tail local bulls created the average 2 until 2, 5 years. Treatment provides was P1 control grass field is 10% from body weght (25 Kg) + bran is 10% from body weght (2,5 Kg) , P2 granting of silage then palm leaves (10 kg) + bran (1,5 Kg) + gliserida ( 2 Kg). In an analysis using t tableindependent sample t-testα=5%. Result of research shows P1 increase body weight cattle 0,68 kg/tail/day and P2 0,81 kg/ tail/ day . Provision of feed based silage then palm leaves significant compared feed control t test (-6,9) > t tabel (2,4). With efficiency cost feed during 90 days P1 (Rp. 967.500,-/cattle) and P2 (Rp. 675.500,-/cattle). So, with provision palm leaves besides increasing body weight cattle, can also reducing the grass that drain time dan energy can reduce the cost daily cattle feed.

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