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Abstract
This research aims to determine the effect of harvest age Indigofera zollingeriana in dry season on the content of Neutral Detergent Fiber (NDF) and Acid Detergent Fiber (ADF). This research used a completely randomized design with four treatments and three replications. The treatment consisted of harvest age at 40 days, harvest age at 55 days, harvest age at 70 days, and harvest age at 85 days. Data were analyzed using Variance Analysis and post-hoc test of Least Significance Different (LSD). The parameters consisted of NDF and ADF. The results of this research indicate that Indigofera zollingeriana which was harvested at 55 days has the highest NDF content (81.61%) and has significantly different (P <0.01) than the NDF content at harvest age of 40 days (70.93%), harvest age 70 days (68.80%), and at harvest age 85 days (67.23%). In addition, Indigofera zollingeriana that was harvested at 55 days has ADF content (56.68%) and at 70 days of harvest had ADF content (54.24%) that was significantly different (P <0.01) compared to ADF content at harvest age of 40 days by 48.35% and the harvest age of 85 days bay 49,41%. It was concluded that Indigofera zollingeriana at the harvest age of 55 days in the dry season was the best harvest age with its NDF content of 81.61% and the ADF content of 56.68%. Therefore, it is recommended to plant Indigofera zollingeriana in the dry season, and it should be harvested at the harvest age of 55 days. Keywords: Acid Detergent Fiber, Dry season, Harvest Age, Indigofera zollingeriana, Neutral Detergent Fiber
Highlights
Bahan sumber protein dalam pakan ternak umumnya didapat dari produk hewani atau nabati impor yang relatif mahal, saat ini telah banyak dilakukan upaya untuk mengganti sumber protein hewani yaitu dengan penggunaan hijauan legum
Tabel 2 menunjukkan bahwa Indigofera zollingeriana yang dipanen pada umur 55 hari yang memiliki kandungan Acid Detergent Fiber (ADF) (56,68%) dan umur panen 70 hari (P70) dengan kandungan ADF (54,24%) sangat nyata lebih tinggi (P
Indigofera zollingeriana that was harvested at 55 days has ADF content (56.68%) and at 70 days of harvest had ADF content (54.24%) that was significantly different (P
Summary
Pemanenan yang dilakukan lebih dari 60 hari akan menyebabkan penurunan kandungan nutrisi karena batang hijauan semakin keras dan serat kasarnya tinggi. Berdasarkan hal tersebut diperlukan upaya untuk tetap mempertahankan produktivitas hijauan Indigofera zollingeriana dengan kualitas yang cukup baik, selain itu ada informasi dari beberapa peneliti mengenai adanya keterkaitan antara umur panen dengan produktivitas (produksi segar, produksi bahan kering serta proporsi daun dan batang) hijauan Indigofera zollingeriana, yaitu produksi bahan kering Indigofera zollingeriana pada umur panen 90 hari masih cukup tinggi. Rekomendasi beberapa peneliti bahwa Indigofera zollingeriana sebaiknya dipanen pada umur 50-60 hari pada musim kemarau dan pada umur 40-45 hari saat musim penghujan, selanjutnya dinyatakan bahwa pemanenan yang dilakukan lebih dari 60 hari akan menyebabkan penurunan kandungan nutrisi karena batang hijauan semakin keras dan serat kasarnya tinggi. Berdasarkan pertimbangan tersebut maka perlu dilakukan penelitian perbedaan umur panen Indigofera zollingeriana pada kisaran umur panen 40-85 hari, oleh sebab itu penelitian ini dilakukan untuk mengetahui pengaruh perbedaan umur panen (40, 55, 70, dan 85 hari) terhadap kandungan NDF dan ADF hijauan Indigofera zollingeriana
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