Central Sheep and Wool Research Institute (CSWRI)
The distribution and breeding tract of Chokla breed is limited to areas at the juncture of Churu, Nagaur, Bikaner and Sikar districts. Chokla is fine carpet wool Indian sheep and reared basically for its wool quality, mutton purpose and suitability for migration. The average body weight for adult male is 41.1 kg and for adult female is 29.9 kg. The face is generally devoid of wool, is reddish brown or dark brown, and the colour may extend up to the middle of the neck.
At CSWRI Avikanagar, a strain of Patanwadi which is larger in size and has good growth rate is reared. This germplasm is known by the name of Dumma/Desi in Gujarat and found in Suerendranagar district. The animals are migratory in nature and during scarcity they migrate up to Ahmedabad. The animals, in general, are medium to large with relatively long legs. They have typical Roman nose with brown face which may be tan in a few cases. Ears are medium to large, tubular with a hairy tuft. This breed is mainly reared for the coarse carpet wool. The average body weight for adult male is 33.34 kg and for adult female is 26.53 kg. The original Patanwadi has a breeding tract in Mehasana, Bhavnagar, Junagadh, Kutchh and Patan districts of Gujrat state.
Avikalin is a synthetic dual type sheep, that was evolved in 1977 for carpet wool and mutton at ICAR-CSWRI Avikanagar by stabilizing the crossbred population of Rambouillet and Malpura at 50% exotic inheritance. It produces about 1.75 kg greasy wool having 27 microns diameter, 27% medullation and staple length of 4.75 cm in half yearly clip. The average body weight of adult male is 29 kg and adult female is 25 kg.
Bharat Merino Sheep:
Bharat Merino sheep were distributed to Kolar District of Karnataka and in Sathyamangalam and Thalavadi areas of Erode District in Tamilnadu. Bharat Merino sheep developed by crossbreeding indigenous Chokla and Nali sheep with Rambouillet and Merino rams and stabilised at 75% exotic inheritance. This breed is reared for wool purpose. The annual greasy wool production is 2.5 kg. The average body weight of Bharat Merino sheep ranges from 38-70 kg and 28-40 kg for adult male and female respectively.
It is a high performing prolific three breed cross having 12.5% Garole, 37.5% Malpura and 50% Patanwadi inheritance. Avishaan is released by the CSWRI, Avikanagar on 4th January, 2016 for use in the field flocks. The females produces 2 or 3 lambs at a time. The adult body weight of the Ram is about 34.70 kg. This sheep has average litter size of nearly 1.6
Dumba sheep is commonly found in the Middle East, Pakistan, Afghanistan, Iran, North India, Western China and Somalia. Actual source of this genotype available in India is unknown. However, mitochondrial lineage study indicates its Asiatic origin along with external lineages. This genotype has very high growth rate. Animals are sold at high cost during the festivals as they have great aesthetic and religious value, owing to fat rump. Fat rump male and female weigh 92.50 kg and 65.67 kg with rump circumference of 39.75 and 28.60 inches at 12 month of age.
Gaddi synthetic sheep has been evolved at North Temperate Regional Station (CSWRl, Avikanagar), Garsa, (Himachal Pradesh) by pooling S/8th and 3/4th Crossbreds of Rambouillet with Gaddi in 1998 followed by inter-se-mating and selection. This sheep is used for fine wool production. The average body weight of adult male is 27.52 kg.
Garole is small sized breed. These sheep are reputed for multiple births and are found in the Sunderban area of West Bengal. The breed tract is tropical humid. The climate of the area is hot and humid. The sheep is mostly grey in colour. Horns are present in the male sheep. These sheep are reported to have contributed prolificacy to the Booroola Merino sheep. Garole Wool is for rough carpet use. Litter size at first lambing is two and at subsequent lambing is 2 to 3. Prolificacy reported is singles 25‑30%, twins 55‑60%, triplets 15‑20% and quadruplets 1‑2%. The average body weight of adult male is 16.4 kg and adult female it is 14.79 kg.
GM Sheep is synthetic sheep obtained by the inter-se-mating from Garole ram with Malpura ewe. The sheep is produced with the aim to augment the reproductive rate and prolificacy for mutton production project of ICAR-CSWRI, Avikanagar. This was a base flock for further development of GMM and Avishaan.
GMM sheep was synthesized through backcrossing of GM sheep with Malpura sheep to further propagate the Fec-B gene to enhance the body weight gain in the progeny. GMM Sheep is having 25 % Garole and 75% Malpura inheritance. It has reached a litter size of >1.7. The average body weight of adult male is 26.02 kg.
The Kendrapada sheep is an excellent medium stature meat animal with high prolificacy. In this breed more than 75% ewes produce multiple births. This sheep is found in Puri, Jagatsinghpur, Jajpur, Bhadrak and Kendrapara district of Odisha. In this breed Head, face, belly and legs are bare and rest of the body is covered with non-lustrous hair. Animals have horizontal short and straight ears and drooping tail. Button type horns are present only in few males. A small number of animals are maintained at Avikanagar for demonstration purpose. The average body weight of adult male is 28.35 kg and adult female it is 27.29 kg.