Journal of Animal and Poultry Sciences (JAPSC)
Vol 4(3), 2015
Requirement of Calcium and available Phosphorus for Laying Japanese quail birds (Coturnix coturnix japonica) in Nigeria
A.Y. AGUDA, A. A. Sekoni and J. J. OMAGE
An experiment was conducted to evaluate the performance and egg production of Japanese quail (Coturnix coturnix japonica) fed diets with varying calcium (Ca) and available phosphorus (aP) levels. A total of 270 female quails (7weeks old) were raised on deep litter for fourteen weeks (98 days). The birds were assigned to nine dietary treatment groups of 30 birds each with three replicates of 10 birds per pen. They were fed nine dietary treatments with three levels of Ca (2.5, 3.0, and 3.5%) and three aP levels (0.35, 0.45 and 0.55%). The diets were formulated to be iso-nitrogenous (22%CP) and iso-caloric (2630kcal/kgME). Results revealed highest final weight, hen housed production for diets containing 2.5% Ca+0.35%aP. Feed conversion ratio and feed cost per crate of egg were also lowest for 2.5%Ca+0.35%aP. Diet containing 2.5%Ca+0.45%aP yielded the lowest average daily feed intake. Birds fed 3.5%Ca+0.35% aP yielded the highest average egg weight but highest mortality. The result of single effect of calcium revealed lowest mortality for 2.5%Ca. For single effect of Phosphorus, 0.35% resulted in the highest final weight but had the lowest average daily feed intake. The result of the layer phase showed that quails from (7-20) weeks can be raised optimally on 2.5%Ca+0.35%aP.
Key words: Available Phosphorus, Calcium, Egg production, Japanese quails, Performance
Influence of Varying Levels of Corn Steep Liquor on Nutrients Intake, Digestibility and Growth Response in Growing Buffalo Calves
SHAHBAZ QAMAR, M. UN-NISA , M. SARWAR and Z. UR-RAHMAN
This study was planned to examine the influence of varying levels of corn steep liquor on feed intake and growth performance of growying nili-ravi male buffalo calves. Fifty male buffalo calves of 9 month old were randomly divided into five groups, 10 animals in each group, using Randomized Complete Block Design. Five isonitogenous (16% crude protein) and isocaloric (2.6 Mcal/kg) diets were formulated. The control diet had 0% corn steep liquor and in 20, 40, 60 and 80% diets, urea on nitrogen equivalent was replaced by corn steep liquor, respectively.Animals were given weighed amount of feed twice daily at ad libitum. The daily feed offered and refusals were recorded to calculate dry matter intake. The sample of feed offered and refusal were used to determine dry matter, crude protein, neutral detergent fiber and acid detergent fiber. Animals fed 40% corn steep liquor diets ate highest dry matter (3.33kg daily)and was the lowest (3.16 daily) by those fed 40% corn steep liquor diets. The neutral detergent fiber and acid detergent fiber digestibility was higherin animals fed diets containing corn steep liquor than those fed diet containing 0% level. However, dry matter and crude protein digestibility remained unaltered across all diets. Calves fed 40% corn steep liquor diets gained more weight (757 g/day) than those fed 80% (637 g/day). Pre slaughter weight of animals fed 40% corn steep liquor diet was the highest (141.5 kg) and was the lowest (130 kg) in those fed 80% corn steep liquor diet. Warm carcass weight was higher in animals fed 40% (65.8 kg) diet followed by those fed 60%, 80%, 20% and control diets. Primal cuts, ash, Na, K and Ca remained unchanged across all diets. The red blood cell count, white blood cells, packed cell volume and hemoglobin values were also same across all diets. In conclusion, animals fed CSL40 diet gained more weight and were cost-effective when compared to those fed control, 20%, 60% and 80% diets.
Key words: Buffalo Calves, Corn Steep Liquor, Intake, Digestibility, Growth Performance.