Showing posts with label Poultry. Show all posts
Showing posts with label Poultry. Show all posts

Tuesday, June 17, 2008

CDFD study: Indian murghi and chicken separate


June 17, 2008
By Syed Akbar
Hyderabad, June 16: The Indian murghi (jungle fowl) not only tastes good but also tells the genetic history of other Indian birds, particularly the chicken.
A study conducted by the city-based Centre for DNA Fingerprinting and Diagnostics reveals that domestication of chicken has occurred independently in different locations of Asia including India. But the Indian chicken has not evolved from the Indian murghi as is commonly believed.
The Indian murghi (Gallus gallus murghi) is relatively pure and is not the parent of the Indian chicken. The CDFD study has shown that the red jungle fowl or Indian murghi and domestic birds do not hybridise in nature.
"Domestication of chicken is believed to have occurred in Southeast Asia, especially in Indus valley. However, non-inclusion of Indian red jungle fowl in previous studies has left a big gap in understanding the relationship of this major group of birds. In the present study, we addressed this issue by analysing 76 Indian birds
that included 56 Gallus gallus murghi, 16 Gallus gallus domesticus (domestic chicken) and four Gallus sonneratii (grey jungle fowl).
We also compared the D-loop sequences of Indian birds with those of 779 birds obtained from GenBank. Our results suggest that the domestication of chicken has occurred independently in different locations of Asia including India," according to CDFD's J Nagaraju.
The study was conducted jointly by Nagaraju, K Sriramana, M Muralidhar and RD Jakati.
Further, the study also suggested that the chicken populations have undergone population expansion, especially in the Indus valley.
Archaeological findings have indicated that the "mother of all poultry" is the Southeast Asian Red jungle fowl or Gallus gallus. Since domestication of chicken has been observed at the Indus valley as early as 3,200 BC, it is believed to be the epicentre of chicken domestication.
There was very rare genetic exchange between the red jungle fowl and domestic chicken populations, at least in recent history. A Maximum Likelihood tree obtained from the microsatellite data showed a clear separation of Gallus gallus domesticus from the Gallus gallus murghi, with Gallus sonneratii as an outgroup suggesting the genetic distinctness of Gallus gallus murghi.
The scientists also constructed a genetic distance based neighbour-joining tree to obtain the genetic relationship among Indian birds.
The result clearly pointed to the fact that hybridisation between Indian chicken and Indian red jungle fowl in the wild is extremely rare.

Sunday, May 18, 2008

Naked Neck Polish: Hyderabadi breeds new variety


May 18, 2008
By Syed Akbar
A fancy poultry breeder from Hyderabad has created an exotic new variety of "Polish", without feathers on its neck. This is the first time that a Polish bird has been bred with a naked neck.
The breeder took a Naked Neck bird and crossbred it with a Polish bird to
obtain Naked Neck Polish. This he achieved in the eighth generation. Moreover, the new bird has several genetic advantages over ordinary poultry birds. It is resistant to a number of poultry diseases.
The new Naked Neck Polish is presently on display at a private poultry farm in Caravan area of old city of Hyderabad. Similar cross breeding attempts have been made in different parts of the world without much success.
"One has to wait for at least eight generations to confirm that a chosen
feature obtained from cross breed sustains in the offspring. In our case, we have successfully demonstrated that Naked Neck Polish bird could be achieved and the
new features sustained in the subsequent generations," says fancy poultry
breeder Naveed Qureshi.
Naked Neck Polish birds are now available only in Hyderabad and Naveed plans to export them to other countries, once the Union government lifts the ban on poultry imports-exports imposed in the wake of bird flu scarce in some Asian countries including West Bengal State in the country.
The Naked Neck is the only breed of poultry, which has no feathers on the neck. The bird has its origin in Central Europe and is popularly known as Transylvanian Naked Neck. It is also called Turken as the bird was wrongly thought to have evolved from cross breed between a chicken and a turkey.
It is a dual-purpose utility bird that gives a large number of eggs. It is in high demand for the rich quality of its meat and easy plucking of feathers. On the other hand Polish breed originated in Poland and is famous for its beauty. It bears crown-like feathers on its head. The bird is bred for fancy and is resistant to most of the poultry diseases.
"All these features from the two species of birds have been obtained in the new variety Naked Neck Polish. There are as many as 14 basic colours and several new standard colours," says Naveed, whose sprawling farm has more than 100 varieties of exotic birds including frizzled white Poland, white crest blue Polish, austrolop, orpinton, play mouth rock, white wyndoh and modern English game.

Saturday, July 8, 2006

Vanaraja: New Chicken Variety Developed in Hyderabad

Syed Akbar
Hyderabad: The city-based Project Directorate on Poultry has developed a chicken variety that closely resembles the jungle (desi) fowl in colour and plumage pattern for backyard farming in villages and tribal habitations.
While chicken varieties are generally white in colour without any plumage pattern, this variety of poultry bird named Vanaraja, is multi-coloured and has attractive feathers. The male bird is a coloured Cornish strain while the female parent bird is a synthetic multi-coloured meat population.
It is difficult to rear common poultry birds in the backyard in villages and hilly terrain as they become easy prey to predators but Vanaraja has the ability and agility to escape predators. The Vanaraja variety is light in weight and has long shanks and is capable of protecting itself.
The PDP has developed the male parent for moderate juvenile body weight, long shanks and good immune competence. On the other hand, the female parent gives high egg production with better egg size and high hatchability. It is also immune to general poultry diseases. The bird easily adapts to local climatic conditions even they turn adverse like extreme cold or hot.
Without extra feeding efforts the Vanaraja male bird attains moderate body weight within eight weeks. The female bird lays between 160 and 180 eggs in a laying cycle. A team of scientists led by Dr SV Rama Rao has developed the bird.
According to PDP officials, the Vanaraja birds can be used to improve the genetic potential of the jungle fowl or desi hens through crossing. "The upgraded progeny from such a cross has been found to perform better than the jungle fowl both in terms of overall body weight and production of eggs," Dr Rao points out.
The chicks need to be acclimatised to the backyard conditions before they could be let free in the open environment. The Vanaraja variety does not need any special diet supplement once let free in the backyard. It will feed on worms and other food material available to it unlike the poultry bird where special care need to be taken.
The Project Directorate has supplied the germplasm of Vanaraja to different parts of the country. The birds are found to be performing well everywhere.
Vanaraja has been a hit in the rural environments and local population has accepted it for backyard farming as the bird attains a body weight of 1.5 kgs in six weeks and reaches up to 1800 grams in seven weeks.
The mortality rate is very low in this variety. The rate is as low as three per cent both at six weeks and seven weeks of age. The bird gives good quantity and quality of meat. There is a wastage of just 30 per cent.
The PDP based at Rajendranagar has also developed a crossbreed called Krishibro, a variety of broiler which does not require high content of nutrients in its feed.
In this case also the mortality rate up to six weeks is just three per cent with a survival rate of 97 per cent as in the case of Vanaraja variety. The broiler chicks in this case are also coloured. Both the varieties have high immunity against common poultry diseases like Ranikhet.

Thursday, July 8, 2004

Desi Fowl like bird developed in Hyderabad

Syed Akbar
Hyderabad, July 8: The city-based Project Directorate on Poultry has developed a chicken variety that closely resembles the jungle (desi) fowl in colour and plumage pattern for backyard farming in villages and tribal habitations.
While chicken varieties are generally white in colour without any plumage pattern, this variety of poultry bird named Vanaraja, is multi-coloured and has attractive feathers. The male bird is a coloured Cornish strain while the female parent bird is a synthetic multi-coloured meat population.
It is difficult to rear common poultry birds in the backyard in villages and hilly terrain as they become easy prey to predators but Vanaraja has the ability and agility to escape predators. The Vanaraja variety is light in weight and has long shanks and is capable of protecting itself.
The PDP has developed the male parent for moderate juvenile body weight, long shanks and good immune competence. On the other hand, the female parent gives high egg production with better egg size and high hatchability. It is also immune to general poultry diseases. The bird easily adapts to local climatic conditions even they turn adverse like extreme cold or hot.
Without extra feeding efforts the Vanaraja male bird attains moderate body weight within eight weeks. The female bird lays between 160 and 180 eggs in a laying cycle. A team of scientists led by Dr SV Rama Rao has developed the bird.
According to PDP officials, the Vanaraja birds can be used to improve the genetic potential of the jungle fowl or desi hens through crossing. "The upgraded progeny from such a cross has been found to perform better than the jungle fowl both in terms of overall body weight and production of eggs," Dr Rao points out.
The chicks need to be acclimatised to the backyard conditions before they could be let free in the open environment. The Vanaraja variety does not need any special diet supplement once let free in the backyard. It will feed on worms and other food material available to it unlike the poultry bird where special care need to be taken.
The Project Directorate has supplied the germplasm of Vanaraja to different parts of the country. The birds are found to be performing well everywhere.
Vanaraja has been a hit in the rural environments and local population has accepted it for backyard farming as the bird attains a body weight of 1.5 kgs in six weeks and reaches up to 1800 grams in seven weeks.
The mortality rate is very low in this variety. The rate is as low as three per cent both at six weeks and seven weeks of age. The bird gives good quantity and quality of meat. There is a wastage of just 30 per cent.
The PDP based at Rajendranagar has also developed a crossbreed called Krishibro, a variety of broiler which does not require high content of nutrients in its feed.
In this case also the mortality rate up to six weeks is just three per cent with a survival rate of 97 per cent as in the case of Vanaraja variety. The broiler chicks in this case are also coloured. Both the varieties have high immunity against common poultry diseases like Ranikhet.