Assessment of long-term production traits of three breeds of exotic commercial layers in the derived Savannah zone of Nigeria
Journal Title: Journal of Applied and Natural Science - Year 2011, Vol 3, Issue 1
Abstract
This study was carried out to compare production traits of three breeds of exotic commercial layers for a production period of 15 months. The breeds are Isa Brown (IB), Bovan Nera (BN) and Dominant Black (DB) and the traits considered are hen-day egg production, feed efficiency and mortality rate. The general means are 5.24eggs/bird/week, 0.006/bird/week and 0.16/breed/week for egg production, feed efficiency and mortality rate, respectively. There was highly significant (P<0.01) effect of breed on egg production and feed efficiency but the reverse was the case for mortality rate. On egg production, IB genotype recorded 5.37+0.07 eggs/bird/week while BN breed had 5.41+0.08 eggs/bird/week and the values were similar but superior to DB genotype with 4.94eggs/bird/week. For feed efficiency, IB and BN breeds recorded higher mean values and were similar but superior to DB genotype. The mean values are: IB=0.006+9.05x10-5 , BN=0.006+8.53x10 -5 and DB=0.005/bird/week. Breed’s effect on mortality rate showed that the three genotypes had similar values, that is, breed has no significant (P>0.05) effect on this trait. There was highly significant (P<0.01) effect of age of birds on egg production. Age 2 (2 nd month) recorded the highest mean values while age 14 (14th month) was the lowest. The values respectively, are 6.04+0.16 eggs/bird/week and 4.18+0.16 eggs/bird/week. In addition, there was highly significant (P<0.01) effect of age of birds on feed efficiency regardless of the breed of birds. Age 2 (2 nd month) recorded the highest mean values and age 14 (14 th month) the lowest. There was also highly significant (P<0.01) effect of age on mortality rate of commercial layers. The long-term production analyses showed that IB and BN genotypes are more productive, feed efficient and could be recommended to farmers as commercially viable breeds of layers.
Authors and Affiliations
S. Olawumi, I. Dudusola
Keywords
Related Articles
- EP ID EP93957
- DOI 10.31018/jans.v3i1.147
- Views 103
- Downloads 0
Grain quality assessment of direct seeded basmati rice (Oryza sativa L.) under different irrigation regimes in Indian Punjab
Irrigation water, being a scarce resource, requires proper management for good quality aerobic basmati rice production. Field experiments were conducted at Punjab Agricultural University, Ludhiana to evaluate the effect...
Screening of bacterial strains for pectate lyase production and detection of optimal growth conditions for enhanced enzyme activity
In the present study, the pectatelyase production by fifty two bacterial strains isolated from ramie grown soils were studied and the strain RDSM01 showed maximum pectate lyase activity. According to sequence homology of...
Scope of ornamental fisheries in snow fed rivers of Uttarakhand - Overview
Upland rivers of hills of Uttarakhand are unique in its ecosystem and biodiversity. These waters possess various varieties of ornamental fishes. The present study focuses on Scope of ornamental fisheries in snow fed rive...
Effect of low cost mole drainage technology on yield of chickpea (Cicer arietinum L.) under waterlogged vertisols of Maharashtra, India
The field experiment was conducted on performance of mole drainage under irrigated and waterlogged vertisols of Maharashtra at Agricultural Research Station, K. Digraj, Dist. Sangli (M.S.), India during 2009-10 to 2011 -...
Response of tomato (Solanum lycopersicum L.) to fertigation by irrigation scheduling in drip irrigation system
Drip irrigation technique has proved its superiority over other methods of irrigation due to direct application of water and nutrient in the vicinity of root zone. A field study was conducted to evaluate the effect of ir...