January 2013
Socio-economic and policy issues determining sustainable fish farming In Nigeria
A major agricultural sub-sector where achieving food security has become elusive in Nigeria is the fish production subsector. Demand for fish in Nigeria stands at about 1.5 million metric tonnes per annum while domestic production is just 511,700 metric tonnes. The wide gap between demand and supply is attributed to increasing population, improved nutrition, underdeveloped local fish farming potentials and depletion of...
January 2013
Estimates of phenotypic and genetic parameters for ewe productivity traits of Lohi sheep in Pakistan
The aims of the study were to investigate the fixed effects which are considered to influence ewe productivity and to estimate the genetic parameters for ewe productivity traits of Lohi sheep. Genetic parameters were estimated by restricted maximum likelihood (REML) procedure using the GENSTAT program. The effects of year and age of ewe were significant for fertility, litter size at birth (LSB), litter size at weaning...
January 2013
Multiple and stepwise regression of reproduction efficiency on linear type traits in Sahiwal cows
Data on some production performance traits of 1000 milch Sahiwal cows from 3451 cows maintained at the Livestock Experiment Station, Bahadurnagar, Okara, Pakistan during the period from 2000 to 2009 were selected to study the relationship between 12 linear type traits and reproductive performance of the Sahiwal cows. The reproductive efficiency (RE) was measured in terms of calving interval from the first five...
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