Hydroponic fodder is an alternative technology to provide the sustainability of high-quality forage for ruminant. Hydroponic sprout contains grass juice which is essential to increase the ruminant performance because the grass juice from hydroponic can contribute to the enhancement of microbial activity. The purpose of this study was to evaluate the effect of harvesting time toward fodder production and nutrient content of hydroponic maize fodder. This study used maize seed and hypochlorite solution for a disinfectant agent. The method used in this study was a completely randomized design (CRD) with 5 treatments. The treatments used was the difference of harvesting time, P1 = 8 days, P2 = 12 days, P3 = 16 days, P4 = 20 days, P5 = 24 days. Variables measured were % germination, growth (plant height), forage production, and nutrient content (dry matter, organic matter, crude protein, and crude fiber). The results showed that the harvesting time is a highly significant effect (P <0.01) on plant height, forage production, and nutrient content. Based on research, hydroponic maize fodder has an advantage as a source of quality forage for livestock because it has a high protein. The crude protein contains on P1 with 12,36 %, P2 = 14,91%, P3 = 17,11%, P4 18,43% and P5 = 17,58 %. The conclusion is the 20th day of harvesting time has good quality and production as an alternative animal forage.
Salah satu komoditas unggulan di Indonesia adalah budi daya udang dan beberapa pengusaha menjadikan udang ini sebagai komoditi ekspor seperti halnya kawasan Asia, Unit Eropa bahkan sampai Amerika. Berbagai jenis yang ada di Indonesia, udang vaname adalah salah satunya yang mempunyai nilai ekonomis yang cukup tinggi, selain itu ada juga udang putih dan udang windu yang cukup banyak peminat pasarnya. Nama lain udang vaname juga sering dikenal dengan nama udang putih. Beberapa keunggulan udang vaname adalah adaptasi yang tinggi terhadap cuaca, wilayah, maupun jenis air yang biasanya dapat mempengaruhi tumbuh kembang udang. Keunggulan terhadap adaptasi yang tinggi bisa menjadi nilai lebih bagi para petani tambak sebagai pilihan budidaya, dikarenakan dewasa ini perubahan yang sering dan cepat terhadap cuaca sedikit banyaknya mempengaruhi ekosistem yang ada. Namun minat yang tinggi terhadap budidaya udang vaname tidak diimbangin dengan pemerataan jalur distribusi pakan udang maupun pemasaran. Hal ini yang terkadang menjadi faktor utama tidak terkendalinya harga udang bahkan sulit untuk diprediksi. Terkadang harga udang dari pengepul terlalu rendah maupun terlalu tinggi yang berpotensi terjadinya permainan harga. Oleh Sebab itu diperlukannya sebuah penelitian terkait prediksi harga udang vaname sehingga dapat digunakan sebagai penentu ideal atau tidak ideal harga udang vaname. Penelitian ini menggunakan Algoritma Linear Regression yang mana adalah sebuah data statistik yang dapat memprediksi sesuatu kedepannya menggunakan data pada saat ini dan juga lampau, dengan metode pengukur keakuratan RMSE dan MAE dengan hasil penelitian ini masing-masing nilai RMSE 1932587 dan hasil MAE -0.01.
This study aims to evaluate the germination and growth rate of seven sorghum varieties, namely KD4, Super 1, Super 2, Pahat, Samurai 1, Samurai 2 and Black Sorghum Rote Island cultivars as a reference for hydroponic sorghum forage production. This research was conducted at the Laboratory of Plant Breeding in the Faculty of Agriculture, Brawijaya University. The experiment used a completely randomized design with the seven different sorghum varieties as treatments and 4 replications. The seven sorghum varieties were evaluated for their germination and growth rate using Rolled Paper Test method in plastic sheet (UKDdp) in a germinator machine. The parameters were the percentage of germination, daily germination rate and percentage of normal shoots. Data were subjected to analysis of variance followed by Duncan’s Multiple Range Test. The results showed that the treatments gave highly significant effect (P<0.01) on the percentage of germination, where Super 2 variety showed the highest germination percentage of 95%, daily germination rate of 22.03%, and percentage of normal shoots of 88.00%. While Black Sorghum variety of Rote Island cultivar showed the lowest values for all of the three parameter, i.e. 0%. percentage of germination, i.e. 0%. Black sorghum variety has very hard seed coat that prevent water immersion into the seeds during germination test. Thus, the seeds of Super 2 sorghum variety must be the best seeds variety for hydroponic sorghum forage production.
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