Thursday, 14 December 2017

 

EFFICIENT USE OF EXPENSIVE ENERGY SOURCES IN BROILER DIETS

Partha Pratim Das, Azimul Haque and Chandrasekar S Kemin Industries South Asia Pvt Ltd
INTRODUCTION
Profitability of broiler industry depends upon its ability to manage cost of production. Feed contributes about 75 % of production costs. Enhancing the nutrient utilization to achieve maximum genetic potential became critical in broiler industry. Among the nutrients, fats and oils contributes high calorific value, in addition to improving feed quality and palatability. Fats are present mainly in the form of triglycerides which are primarily emulsified by bile salts and hydrolyzed by lipase enzyme into fatty acids, mono and di- glycerides. Lysophospholipids are a group of compounds which are commonly used as a feed additive to enhance the fat and other nutrient utilization.

Lysoforte® is a bio-surfactant product containing naturally derived lysophospholipids and phospholipids. It is effective in enhancing utilization of lipids, amino acids, and in improving villi health. Various commercial and scientific studies demonstrated that Lysoforte® could improve animal productivity by increasing the AME of fat, feed and overall nutrient utilization.

OBJECTIVE
A broiler trial was carried out to demonstrate the economic significance and broiler performance of Lysoforte® through two different application modes- as on-top application and partial replacement of oil. As per the commercial practice, on-top application was preferred to overcome the variations in fat energy levels and enrich the nutritional value of feed. Whereas, partial oil replacement was considered to reduce the overall feed cost.


MATERIALS AND METHODS
The experimental study was conducted at an R & D farm facility in Bangladesh. Production parameters like feed intake, body weight, feed conversion ratio (FCR) were measured and cost economics of broiler production was calculated. The trial consisted of three dietary groups of Cobb-500 broilers, a control group fed with basal diet as per industrial practices and two dietary groups with Lysoforte® supplementation. Of these two groups, one group was fed on-top with Lysoforte® in basal diet and the other group had a partial replacement (5kg) of added oil with corn. Though Lysoforte® can replace 8-10 kg of oil or 60-80 Kcal ME, current approach was selected to meet the commercial interest of broiler producers. Feed ingredients like rice bran oil (source of added fat and corn), rice polish and soybean meal were also added.

TRIAL DESIGN
A total number of 450 Cobb-500 day old chicks were randomly assigned into three treatment groups for the dietary regimen.  A three-phase feeding program was adopted as starter (0-10 days), grower (11-25 days) and finisher (26-32 days) as per the commercial practice. Related rearing, management and medication were followed in all the groups throughout the trial. The energy (Kcal/kg) and crude protein (%) levels were maintained at 2900, 3000 & 3100 and 23.0, 21.0 & 19.5 for starter, grower and finisher respectively. The amino acid concentration followed were digestible lysine (%) levels at 1.25, 1.14 and 1.04 for the three phases.

RESULTS AND DISCUSSION

Results revealed that Lysoforte® supplementation increased the body weight, EEF, net live weight produced per tonne of feed, improved FCR and reduced production cost in treatment groups. The body weight was almost similar in both the Lysoforte® fed groups. A marginal improvement in FCR was observed in Lysoforte® oil replaced group over on-top group. Whereas, Lysoforte® oil replacement group had better deliverables in terms of total live weight produced per tonne of feed and cost of production per kg live weight. This might be attributed to the fact that oil replacement in Lysoforte® led to a better nutrient utilization to attain bird’s requirement. Both the modes of Lysoforte® supplementation resulted in an additional productivity and economic returns than the basal diet.

CONCLUSION
The study concluded that supplementation of Lysoforte® (on-top as well as partial oil replacement) had shown an efficient nutrient pertinence, improved broiler performance and economic returns. However, partial oil replacement of Lysoforte® could be a better option for the efficient use of nutritional emulsifiers, lowering input costs and ensuring exceptional bird performance when compared to on-top supplementation.