RESEARCHES CONCERNING THE USAGE OF A FEED ADDITIVE IN CHICKEN BROILERS FEEDING

Al. Usturoi, I.M. Pop

Abstract
The main goal of this paper was to establish and reveal the role played by the BABY C₄ (acidifier) feed additive in the chicken broilers rearing. The studied flock included 160 individuals, allocated in 4 groups: a control group - L_c and three experimental groups - E₁, E₂, E₃. A specific percentage of feed additive inclusion has been established for each group, during a certain technological period, as it follows:
- L_c = mixed fodder, standard formulated for each technological period;
- E₁ = +0.3% BABY C₄ during starter period (1-7 days) and standard feed during the other periods;
- E₂ = +0.3% BABY C₄during starter period (1-7 days), +0.2% during growing period (8-14 days) and standard feed during the finishing period;
- E₃ = +0.3% BABY C₄ during starter and growing period and standard feed during the finishing period.
The achieved results revealed that the chickens in the E₁ group achieved better body weight (+35.84g) and a better average daily gain (+1.14g/chick), compared to the hybrid potential and obviously higher than other groups.
The best results concerning feed consumption have been also achieved by the chickens in the E₁ experimental group (81.65g/chick/day-average intake and 1.490kg feed/kg weight gain - feed conversion ratio), compared to the chickens in the E₃ experimental group (87.5g/chick/day-average intake and 1.679kg feed/kg gain).

Key words: broiler, feeding, acidifier, feed intake, weight gain

CERCETARI PRIVIND UTILIZAREA UNUI ADITIV FURAJER ÎN ALIMENTATIA PUILOR BROILER DE GAINA

Al. Usturoi, I.M. Pop

Rezumat
Prin intermediul prezentei lucrari se doreste stabilirea si evidentierea rolului aditivului furajer BABY C₄ (acidifiant) în cresterea puilor broiler pentru carne.
Efectivul studiat a fost de 160 de capete, acesta fiind împartit în 4 loturi, respctiv: un lot martor L_c, si trei loturi experimentale E₁, E₂, E₃. Pentru fiecare lot s-a stabilit administrarea unui anumit procent de aditiv, într-o anumita perioada de crestere, dupa cum urmeaza:
- L_c nutret combinat standard caracteristic fiecarei perioade de crestere;
- E₁ 0,3% BABY C₄ în perioada de demaraj (1-7 zile) si nutret standard pentru restul perioadei;
- E₂ 0,3% BABY C₄ în perioada de demaraj (1-7 zile), 0,2% în perioada de crestere (8-14 zile) si nutret combinat standard în perioada de finisare;
- E₃ 0,3% BABY C₄ În perioada de demaraj- crestere si nutret combinat standard în perioada de finisare.
Rezultatele obtinute au pus în evidenta faptul ca puii din lotul E₁ au înregistrat o greutate mai mare cu 35,84g si un spor mediu zilnic superior cu 1,14g/cap comparativ cu potentialul hibridului folosit, rezultate net superioare celorlalte loturi.
Cele mai bune rezultate referitoare la consumul de furaje au fost realizate tot de puii din lotul experimental E₁ (81,65g/cap/zi-consum mediu si 1,490kg n.c./kg spor-consum specific), fata de de puii din lotul experimental E₃ (87,5g/cap/zi-consum mediu si 1,679kg n.c./kg spor).

Cuvinte cheie: broiler, alimentatie, acidifiant, consum hrana, spor de greutate