Nilai Tambah Berat Badan Sapi Berdasarkan Pemberian Pakan Di Kawasan Perkebunan Karet

Hutapea Y, Suparwoto S, Suryana Y, Hutabarat P. 2019. Value added weight of cattle based on giving feed in rubber plantation area. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal 2019, Palembang 4-5 September 2019. pp. 62-70. Palembang: Unsri Press. Rubber plantation areas have the potential to provide cattle feed such as natural grass and leftovers from other crops that are cultivated such as corn waste. This potential can be used to support the development of cattle in South Sumatra. This study aims to analyze the added value of cattle weight through several types of feed that can be obtained in rubber plantation areas. The activity was carried out in August - October 2018 in rubber plantation area of Betung Sub-District, Betung District, Banyuasin Regency. The cattle used were 20 male cows with a body weight (BW) of 150-200 kg and around 1-2 years old. Feed treatment (P1) in the form of: fresh grass according to farmer's habits, P2: fresh grass (10% BW) + concentrate (1% BW), P3: fresh grass (5% BW) + corn silage (5% BW) + concentrate (1% BW), and P4: corn silage (10% BW) + concentrate (1% BW). The results of the study show that the highest daily weight gain of cattle was 0.36 kg obtained from P2 treatment, while the lowest was 0.23 kg in P4 treatment. On a maintenance scale of 5 cows for 3 months, feed in the form of fresh grass (10% BW) + concentrate (1% BW) provides the highest added value of Rp 2,598,750 and the combination of natural grass (5% BW), corn silage (5% BW) and concentrate (1% BW) provides added value of Rp. 371,250 compared to the control. Keywords: added value, body weight, cattle, feed, rubber plantation are