Comparative Performance of Some Improved Poultry Crossbreds Under Konkan Region of India

ABSTRACT The experiment was conducted at Poultry Farm, College of Agriculture, Dr. B. S. Konkan Krishi Vidhyapeeth to assess the comparative performance of some improved poultry crossbred during laying period. The trial was carried out on five different types of improved poultry crossbred namely, -Giriraja x Delham Red (T1), Delham Red x White Leghorn (T2), Giriraja x Asselkala (T3), Delham Red x Giriraja (T4), Asselkala x Giriraja (T5) and two purebred groups like Delham Red and Vanraja. About 147 experimental birds were replicated three times and each replication consisted of seven birds in seven treatments in a Completely Randomized design. The feed consumption during early laying period and peak laying period differed significantly (P<0.05) between the groups. The average egg production was significantly (P<0.05) different in the treatments during early and peak laying period. The gross returns from the eggs of purebreds was significantly higher (P<0.05) than the crossbreds. It can therefore be concluded that, feed consumption is lower in purebreds than crossbreds. The average egg production is more in purebreds as compared to crossbreds up to peak laying period. Considering the minimum feed consumption and feed cost with maximum egg production and gross returns were observed in purebreds vis-a-vis crossbreds

Comparative Growth Performance of Deccani Lambs Under Various Rearing Systems in Agro-ecological Conditions of Konkan

ABSTRACT The experiment was carried out during winter season (Dec-March) to study comparative growth performance of Deccani lambs under different rearing systems. Twelve Deccani lambs of 3 months age were randomly allocated into three groups of four lambs each viz., T 1 (Grazing), T 2 (Semistallfed), T 3 (Stallfed). T 1 lambs were maintained on 6-7 hrs grazing (100%) with supplementation of concentrate mixture at night as maintenance ration. Both T 2 and T 3 lambs were reared on green roughages of green maize (Zea mays) and Shivan (Gmelina arborea) tree leaves with concentrate mixtures for maintenance. The dry matter intake, average daily gain in body weight, body length, body height, chest girth and total greasy fleece yield was significantly higher (P< 0.01) in stallfed system than grazing and semistallfed systems. The higher intake of dry matter in T 3 (Stallfed) lambs was observed than the lambs reared under the other two systems. Considering superior growth performance of Deccani lambs under stallfed system,present study concludes that , the sustainable lamb production could be promoted in stallfed (Intensive) system in Konkan region of Central India