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80en
14-04-2008, 04:33 AM
Bisakah Koi lokal kalo kita kasih pakan import akan memberikan hasil yang bagus dibanding pakan lokal? khususnya dalam pertumbuhan panjang dan bodi, setau saya koi lokal apabila sudah mencapai ukuran 45 cm akan sulit berkembang ukurannya. Tq.

William Pantoni
14-04-2008, 06:54 AM
Pak 80en ...Salam Kenal...klu bpk baca di thread2 ini, menurut pakar2 kita....pertumbuhan koi tergantung bnyk hal seperti genetik, kualitas air, pakan dll nya. Biarpun ikan import, klu genetik nya jelek, biar dikasih pakan import tetap aja jelek. Mohon di koreksi.

Ari
14-04-2008, 08:31 AM
saya punya temen di bogor, ikannya campur lokal ada, import juga ada, hanya untuk pakan dia kasih produk import terus, dia kalau membeli ikan, ciri ciri ikan yang bisa besar jadi acuan ( kepala agak lebar, punggung agak ada punuk,dan bonggol ekor agak gedhe, kolam dia ukuran P 6m, L 2m,D 1,5m...Hasilnya : 15 ekor ikan dia paling kecil panjangnya 60cm, paling besar 90cm dan masih tumbuh, dan badanya lebar2 semua!!!!!!

Selamat Membesarkan pak, keep your effort on


salam

80en
14-04-2008, 01:10 PM
Pak 80en ...Salam Kenal...klu bpk baca di thread2 ini, menurut pakar2 kita....pertumbuhan koi tergantung bnyk hal seperti genetik, kualitas air, pakan dll nya. Biarpun ikan import, klu genetik nya jelek, biar dikasih pakan import tetap aja jelek. Mohon di koreksi.
Salam kenal juga Pak dan juga Pak Ari, sejahtera selalu, terima kasih atas reply pada pertanyaan saya. Karena saya termasuk baru baru saja pelihara ikan Koi, kebanyakan sih lokal, cuman untuk pakan saya usahakan impor.

Davkoi
14-04-2008, 06:51 PM
enjoy this

Feeding and growth rate

The feeding pattern and growth rate of Koi depends on many factors, such as water quality, water temperature, stocking density and genetic background.

Koi feed most actively when temperatures are in excess of 15c(59F), allowing sexually immature fish to grow rapidly during the summer months when the temperature is warmer.

The growth rate slows considerably in mature Koi; in sexually mature fish, most of the food they eat is utilized in producing eggs or sperm in preparation for breeding.

The fish do continue to grow throughout their lives and it is easy for pampered Koi to reproduce and continue to grow because of their artificially high feeding rates.

Water quality affects the rate of growth as Koi lose their appetites and may even stop eating. Poor water quality can also affect the fish's metabolism, thus hindering digestion of food.

The stocking density of the pond can also have a marked effect on the growth rate.

In a lightly stocked pond, Koi will become sexually mature while still a small size (25-3Ocm/10-l2in) and once mature, growth is retarded. Although Koi in a densely stocked pond will mature at a much larger size (50-60cm/20-24in), but competition for food will slow the growth rate as food will be more scarce and the 'battle' for it can stress some Koi.

Water temperature affects fish more than any other single factor. Their body temperature fluctuates according to the temperature of their environment. As the temperature drops, the ability of the Koi to digest and assimilate food decreases. In the winter months, when temperatures drop below 10C(50F), it is best to feed cereal diets that the they can digest quickly and easily and does not stay in the gut too long. High-protein diets linger in the gut and can cause severe problems; the bacteria found in the fish's gut, which play a role in breaking down some less readily digestible substances, such as cellulose, may become pathogenic if food is retained in the gut too long.

As the water temperature rises, the Koi need protein for growth, repair of damaged tissue and injuries, and for reproduction. In the summer, Koi will benefit from a high-protein diet containing 35 to 40 percent of fishmeal-based protein.

Coolwater
15-04-2008, 01:15 PM
In a lightly stocked pond, Koi will become sexually mature while still a small size (25-30cm/10-l2in) and once mature, growth is retarded. Although Koi in a densely stocked pond will mature at a much larger size (50-60cm/20-24in), but competition for food will slow the growth rate as food will be more scarce and the 'battle' for it can stress some Koi.


Yg ini saya baru tau nih, pengetahuan jadi bertambah deh. Ayo semua beli koi yg banyak utk kolamnya biar cepet gede ikannya. Bila perlu borong semua ikan2 yg ada di thread 'jual'. :) :)