Inbreeding and the Perubliz

We are glad to hear that a number of you have fought and won with the Perubliz.

But reminder lang po ang Perubliz ay may dugong Peruvian (3/8) at karamihan sa mga Perubliz pairs and trios na nakuha nyo ay mga inbred individuals and related to one another. Ibig sabihin pag i-mate nyo silasila ang mga anak ay heavily inbred na po. Magandang pagpilian para materiales ngunit hindi advisable para ilaban at baka mayroong nakatagong inbreeding depression.

The Perubliz is designed as breeders not fighters. Pero kung hindi po nakapasa sa standard nyo as breeder or gusto nyo munang ilaban bago gawing breeder pwede po wag lang pustahan ng malaki. We can never tell when inbreeding depression will set in.

Kung sino man sa inyo mga kamana ang nagkapagparami ng pure perubliz pwede nyo pong I cross sa inyong magagaling na American bloodlines. Pwede rin pong I cross ninu sa mga bloodlines ng RB Sugbo/Scorpion Ox na compatible with Perubliz. Halimbawa: Perubliz x blakliz or perubliz x shuffler/Blakliz. Pwede natin isama ang mga bloodlines na ito sa Programa Masa Gana para lang sa mga meroong Perubliz at nang makapalabas kayo ng magandang Perubliz crosses.

Let us guide you in your breeding the Perubliz.

As a general rule po, inbred indivuals are good for breeding, while crosses are the better fighters. Here is why:

Cross breeding Crossbreeding is the mating of entirely unrelated individuals or individuals without any common ancestor for the past six generations. The object of cross breeding is to combine the good traits from both parents to produce better off spring. The beneficial effects of this genetic variation is called hybrid vigor. The more varied the genes in the individual the greater the chances for hybrid vigor, provided that vast majority of these genes are desirable. There are various kinds of crossbreeding. There is the two-way cross or breeding say a pure lemon to a pure sweater. There is also the 3-way cross like a mating between a pure kelso and a lemon/sweater 2way cross. There are 4-way, 5-way, 6-way crosses, so on and so forth. Crossbreeding combinations are practically limitless. But, in the same manner that too intense inbreeding may result in inbreeding depression, too much genetic variations may result in genetic confusion rather than in hybrid vigor.

Inbreeding Inbreeding is the mating between individuals with a common ancestor or ancestors within six generations. In short, the mating of relatives. Examples of inbreeding are the mating between full siblings or brother to sister mating; son to mother; father to daughter. These are intense forms of inbreeding. Less intense forms are half-brother to half sister; nephew to aunt; uncle to niece. There are also milder forms of inbreeding using far more removed relatives. Inbreeding is done in order to purify succeeding generations for certain desired qualities. The object of purification is to increase the chances that these traits will be passed on the succeeding generations.

For example a flock of chickens pure of the feature of straight comb, when mated, will pass on nothing but gene for straight comb. So if we desire to have chickens with straight comb then we ought to breed individuals that are pure of the straight comb trait. This is the reason why inbred or purified chickens are preferred as breeders.

Breeding the gamefowl is not always as simple as that. Comb type is a simple hereditary trait, even trivial, but fighting ability and other attributes are not. Thus there is always the possibility that inbreeding will result not only in purifying desired traits but also undesirable ones. When this happens, the results are called inbreeding depression. As a rule, the more intense the inbreeding, the higher the chances of depression.

The intensity of inbreeding is measured by what is called inbreeding coefficient. But for practical purposes we don’t have to master the inbreeding co-efficient of every mating combination between relatives. It is enough that we know inbreeding is resorted to in order to purify good traits for our brood fowl to pass on these traits to the succeeding generations. It also helps that we are , as well, aware of the dangers thereof.

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