Aurel Sara

THE EFFECTS OF SOME PREBIOTIC PRODUCTS (ACTIGEN, BIOTRONIC TOP3) ON THE PRODUCTION AND CONSUMPTION INDICES IN BROILER CHICKENS

The prebiotics are natural or synthetic organic substances that favour the growth of beneficial microorganisms in the gastro-intestinal tract, thus maintaining the animals healthy and productive and subsequently increasing the production performances. The aim of this study was to evaluate the effects of prebiotic products (Actigen and Biotronic Top3) on the main production and consumption indices of broilers. The study was conducted on a 75 broiler chicken Ross-308 hybrids divided in three groups, over a period of 42 days. Group 1(E) received combined feeds with the Actigen prebiotic for 42 days as follows: 0.08% in the starter phase (1-14 days), 0.04% in the grower phase (14-35 days) and 0.02% in the finisher phase (35-42 days). The broilers in group 2(E) were administered feeds containing prebiotic Biotronic Top3 (0.1%) for the whole duration of the study. The broilers in the control group were fed the base feed only. The broilers from all groups were weighed at the beginning and every following week; their average body weight, daily weight gain, feed consumption and feed conversion ratio (FCR) were determined. The use of the Actigen in experimental group 1(E) led to a body mass increase of 11.26%, to an 11.54% higher daily weight gain and to the reduction of the FCR by 2.31% compared to the control group. In Group 2(E) receiving Biotronic Top3, an increase was recorded for the body mass (9.25%) and daily weight gain (9.49%), the FCR being the same as the one recorded in the control group. These results confirm the favourable influence of prebiotics on the production performances of broiler chickens.

THE EFFECTS OF SOME PREBIOTIC PRODUCTS (ACTIGEN, BIOTRONIC TOP3) ADMINISTRATED IN THE FOOD OF BROILER CHICKENS ON THE MEAT QUALITY

Following the 2006 EU ban of antibiotic-based growth promoters, the use of alternative products, such as prebiotics, became a necessity. The goal of this study was to determine the effects of prebiotic products (Actigen AŸi Biotronic Top3) on meat quality in broiler chickens. The research has been conducted on a number of 75 Ross-308 hybrid broilers, assigned in three groups (25 individuals/group), over a period of 42 days. Group 1(E) was fed with the base diet supplemented with the Actigen prebiotic in a proportion of 0.08% in the first growth phase (days 1-14), 0.04% in the second phase (days 14-35) and 0.02% in the third phase (days 35-42). Group 2(E) received the base feed supplemented with the Biotronic Top3 prebiotic (0.1%) throughout the whole growth period. At the end of the study period, five broilers from every group have been sacrificed to determine meat quality and meat chemical composition. The usage of prebiotics led to an increase of the carcass weight gain of 16.29% in group 1(E) receiving Actigen and 13.49% in group 2(E), fed with Biotronic Top3, compared to the control group. The percentage of superior quality meat (quality I and II) in the carcass was higher by 4.4% in group 2(E) Biotronic Top3 and by 1.67% in group 1(E) Actigen compared to the control group. Following the administration of Actigen and Biotronic Top3 prebiotics, in groups 1(E) and 2(E) the meat quality was improved in groups 1(E) and 2(E), due to an increase in the protein content and a reduction of the fat content. These results confirm that prebiotics administered in the feeds for broiler chickens have favourable effects on the meat production and meat quality.

NNutritive Traits and the Use of Guar Meal in The Nutrition of Farm Animals

Abstract Guar ( Cyamopsis tetragonoloba ) is an annual pulse from the dry tropical regions; said to originate from the wild African species C. senegalesis . Although the leaves and pods can also be used, the seeds are the most used part of the plant. It has high protein content, with high digestibility and palatability without any toxicity sign, and can be used in farm animal nutrition as protein products. Guar meal is submitted to heat treatment to inhibit the anti-nutritive factors and significantly increase the product’s digestibility and palatability. The Milan based company, Chemical SRL, produces a number of guar meal types such as GUAR 50PF, Guar 60PF and Guar 70PFR. This product can be used for all farm animals, especially cows, swine, poultry and fish, as it is not genetically modified (GMO-Free) and no other chemical substances are used during its fabrication process.