摘要：The present experiment was undertaken to study the feeding effect of diets containing different forms of duckweed for local ducks on their productive performance and egg quality or egg yolk pigmentation. A total of 90 birds of 24 wk old ducks were randomly divided into 18 experimental units of 2.0 x 1.0 m2 of cages. The experiment was assigned in a completely randomized design (3 treatments with 6 replicates, 5 birds each). There were 3 dietary treatments, namely P1= ducks fed a complete diet containing 20 % of dried duckweed and given in the form of dry-mash; P2= a complete diet in P1 but it was offered in wet form (slurry); and P3= ducks were offered basal diet in the form of dry-mash and fresh duckweed was offered separately ad libitum. Diets were formulated to have similar nutritional contents. Feed consumption, feed conversion ratio (FCR), and egg yolk pigmentation were measured. The result of the study showed that these three parameters were affected by the feeding different forms of duckweed. Feeding diet with fresh duckweed brought about the best pigmentation than did the dry one. Fresh duckweed offers a promise as a potential feedstuff for ducks and has a good implication in reducing feed processing cost.
其他摘要：Penelitian ini dilakukan untuk mempelajari pengaruh pemberian pakan mengandung duckweed dengan penyajian berbeda pada itik lokal terhadap performan produksi dan kualitas kuning telur. Sebanyak 90 ekor itik berumur 24 minggu secara acak dibagi menjadi 18 kelompok dan ditempatkan masing-masing pada unit kandang berukuran 2 x 1 m2 . Penelitian menggunakan rancangan acak lengkap dengan tiga perlakuan yang masing-masing terdiri atas 6 ulangan. Perlakuan P1 adalah kelompok itik yang diberi pakan komplit mengandung duckweed 20% dan disajikan dalam bentuk mash kering, P2 adalah kelompok itik yang diberi pakan komplit mengandung duckweed 20% dan disajikan dalam bentuk basah (bubur) dan P3 diberi ransum basal disajikan dalam bentuk mash kering dan duckweed disajikan secara terpisah dalam bentuk segar. Ransum disusun dengan kandungan nutrisi sama. Konsumsi, konversi pakan, dan pigmentasi kuning telur dipengaruhi oleh cara penyajian duckweed. Pemberian duckweed segar mempunyai potensi yang baik untuk diterapkan dalam mengurangi biaya pengolahan pakan.
