Update anak reban

Dari empat ekor yang tetas, tinggal 3 ekor sekarang. sekor mati jatuh reban.
Walaupun jantan yg digunaka dgn induk Srii ni jenis rinting, Bulu ketiga tiga anak ni belum ada yang rinting lagi, apapun sgkp akan tunggu sampai remaja untuk tgk sama ada anak ni ada darah rinting atau darah pembaka tempat sgkp beli induk Srii.

First time ambil gambar solo, Takut lagi ayam ni.

Website yg baik untuk peminat serama

Kali ni sgkp nak share dgn rakan rakan laman sesawang yg memberi byk maklumat tentang perternakan. Mungkin ada maklumat yang berguna kepada breeder breeder serama untuk menambah baik baka reban dan sebagainya. Yang paling sgkp suka ialah mengenai "inbreeding" sebab sgkp memang merancang utk buat inbreeding bg menghasilkan anak reban yg sgkp sasarkan. Selepas membaca artikel di laman sesawang tersebut mengenai inbreeding, tahulah apa yang perlu sgkp buat sekiranya melakukan inbreeding. Harap rakan rakan yg lain dapat manafaat dari laman tersebut.

http://web.archive.o...ages/page0.html

Inbreeding

There are varied opinions regarding the issue of inbreeding. One school of thought contends that inbreeding is a negative thing and brings about depression in traits such as fertility, hatchability, rate of lay and others. Another school of thought maintains that the negative aspects of inbreeding can be controlled and even eliminated to a large extent through intelligent selection.

Several studies were conducted in the early part of the twentieth century (for a brief synopsis, see Crawford, Elsevier, 1990, Chapter 39) that showed essentially disasterous results when full sibling fowl were mated for several generations. However, even in the first generation of progeny from full sibling matings in these early studies, traits such as hatchability and rate of lay were seriously depressed. These early studies are largely responsible for many people believing that inbreeding in poultry is universally negative.

Other poultry enthusiasts are aware that inbreeding in plants is a very successful strategy in developing hardy strains with desirable traits. They also recognize that most lines of show-quality poultry are inbred. Research performed in the 1970s and later (see Crawford) on inbreeding in chickens (Leghorns), turkeys, quail, pheasants and partridge fowl showed that desirable traits such as rate of lay, hatchability and fertility can be selected for in inbred lines. These traits can recover from the initial depression due to inbreeding, sometimes even to the same level as the non-inbred lines. A 1988 study by Ameli and co-workers showed that long-term selection against the negative effects of inbreeding can be successful in recovering traits such as high rate of lay and fertility in Leghorn populations.

The depression in traits seen in (random, nonselective) inbreeding, such as fertility, hatchability and rate of lay, is often due to recessive genes. If the depression of these traits were due to dominant genes, the depression would be expressed and observed in non-inbred lines and would not be a phenomenon associated with inbreeding. Epistasis or Epistacy (the interaction of genes at different locations on chromosomes) is sometimes invoked to explain aspects of inbreeding depression.

As of this writing, inbreeding experiments ongoing at the University of Arkansas have associated the greater part of inbreeding depression on hatchability to the male. The evidence for this is the following. Inbred females were mated to a range of different males and the hatchability of their eggs was observed. Inbred males were bred to a range of different females and the hatchability of their eggs were observed. The hatchability of eggs from inbred males was substantially lower than the hatchability of eggs from inbred females, regardless of the cross. So, for example, the hatchability of eggs from a father-daughter cross in which the father is an inbred individual was about the same as the hatchability of eggs from a mating of the same male with non-inbred females. This is strong evidence that the inbreeding depression of hatchability is largely a property of the male birds.

The fact remains that, if the backyard fancier allows inbreeding to take place and does not actively select against the negative effects of inbreeding, the entire population will perform at a lower level with respect to fertility, hatchability, rate of lay and and so on. On the other hand, the objective evidence is convincing that it is possible to develop successful inbred lines of poultry through active selection for desireable traits.