STUDIES ON CARCASS CHARACTERISTICS AND CUT UP YIELDS OF BACKYARD CHICKEN VARIETIES

The present investigation was carried out to study carcass characteristics and cut up yields in backyard varieties of chicken. Six different varieties namely CARI Shyama, Vanaraja, Kalinga Brown, Black Rock, Caribro Dhanraja and Kuroiler used in Chhattisgarh for backyard poultry were studied. The overall mean dressing percentage were recorded as 77.48 ± 1.19, 79.27 ± 1.13, 79.12 ± 0.58, 79.23 ± 0.5 and 79.90 ± 0.59 per cent for CARI Shyama, Vanaraja, Kalinga Brown, Black Rock, Caribro Dhanraja and Kuroiler, respectively. The overall mean values observed for giblet weight percentage were 4.92 ± 0.01, 4.97 ± 0.10, 5.65 ± 0.20, 5.08 ± 0.06, 4.96 ± 0.11 and 4.89 ± 0.16 % for aforesaid varieties respectively. Breast weight percentage was found to be significantly higher in females compared to males of same age group (P<0.05). However, other carcass traits were not affected by sex of the birds. The proportion of bled weight, dressed weight, leg weight, breast weight and blood loss were significantly (P<0.05) influenced by age of the poultry birds. The results indicated that certain carcass traits of improved varieties of backyard chickens are affected by variety, sex and age of the birds

Effect of Sex Sorted Semen in Synchronized Estrus on Pregnancy Rate and Female Ratio in Gir Cows

Background: At present there is huge demand for Gir cow females however, prolonged inter calving period, more inseminations per conception and post-partum anestrus are the predominant reproductive disorder along with use of unsexed semen limit the birth of more females in Gir cows. The present research study was conducted to study the effect of sex sorted semen in synchronized estrus with Ovsynch protocol on pregnancy rate and gender ratio in Gir cows. Methods: Total twenty Gir cows that have completed post-partum period of sixty days with normal reproductive genitalia, without clinical as well as subclinical infection were selected and divided into two equal groups. The cows from both the groups were synchronized with Ovsynch protocol. In Group- I (n=10), the cows were inseminated with sex sorted semen while in Group-II, the cows were inseminated with coneventional semen. The pregnancy rate and gender ratio was recorded. Result: Efficacy of estrus synchronization was 100.00 per cent for Gir cows treated by Ovsynch protocol in both groups. The pregnancy rate was numerically lower after AI with sex sorted semen (40%) than conventional semen (50%) and results are non significant (P less than 0.05) with 100% calving rate. The proportion of female calves born from sex sorted semen AI was 75% and from conventional semen was 60%. The proportion of live calves born from sex sorted and conventional semen AI was 100%. The sex sorted semen may be used in Ovsynch protocol in Gir cows. </jats:p

Histological study on stromal tissue in mammary gland at lactating, involution and pregnant stage in Murrah buffalo

The present histological study was conducted on mammary gland tissue of sixty Murrah buffaloes. The samples were categorized into three stages as lactating, nonlactating nonpregnant (involution stage) and nonlactating pregnant by ascertaining the stage of lactation, dry period and pregnancy period. Stroma was found to be comprised of interalveolar, interlobular and interlobar connective tissue. The amount of stromal tissue varied during different stages of lactation. In late pregnant and colostrum stage the interalveolar connective was minimum and alveoli were almost touching each other. The amount of stromal tissue increased from colostrum stage to ten months of lactation. It was maximum in nonlactating nonpregnant stage from one to two months (later stage of involution). Through stomal tissue blood and lymph vessels and nerve goes into the parenchymal tissue

Evaluation of Different Bio and Chemical Insecticides Against Aphids, Aphis craccivora Koch Infesting Dolichos Bean

A field experiment was carried out to evaluation of different insecticides against Aphis craccivora Koch infesting dolichos bean at Vegetable Improvement Scheme. After the first and second spray it was revealed that the treatment (Diafenthiuron) was the most effective recording number of aphids 80.65%. Treatments (Imidacloprid, Azadirachtin and Dimethoate also showed significant control, with per cent reductions of 74.86, 73.98, and 70.47%respectively. Bio insecticides Lecanicillium lecanii and Metarhizium anisopliae low significant reduction 45.98% and 29.66 %