The Influence of Nutritional Characteristics of Feed Administered on the Bioproductive Performance of Broilers Raised in Free-Range System

Andreea Cocolea, Lavinia Stef, Calin Julean, Eliza Simiz

Abstract


The coming out of the efficient meat chicken hybrid on the Romanian market and feeder products like the combined feed (CF), the PVM concentrates and the vitamin-mineral premix, make the free-range bird breeders choose a technique intake that provide an avian production (meat, eggs) under profitability conditions. During the proposed research, we followed the economic-productive reaction of meat chickens Ross Hybrid 308, fed with CF, which met the nutritional characteristics specific to intensive system at an experimental variant, and at the other variant they were CF fed with nutritional levels adapted to a slower growth system. Bioproductive indices obtained by meat chickens from the two experimental variants were economically analyzed in order to set the profitability of the two feeding methods. The adaptation of the feeding system of meat chickens to household raising in the family farms using combined feed (with diminished protein levels) proper for a slower growth, determine average body weights of about 4.9% smaller comparated to the intensive variant, a CF intake and a feed conversion comparable, but with foraging costs reduced by 12.23% to obtain 1 kg live-weight. This recommends the use of CF whose nutritional characteristics (in certain phases, with protein levels lower up to 2.30p%) are adapted to a lower growth.


Keywords


protein level, nutrition, broilers, free-range sustem

Full Text:

PDF

Refbacks

  • There are currently no refbacks.


Copyright (c)


Scientific Papers Animal Science and Biotechnologies publish open access articles under the terms of the Creative Commons Attribution 4.0 Licence (read full legal code).


LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual
PUBLICATION LANGUAGE: English
_________________________________________________________________

Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Faculty of Animal Science and Biotechnologies
300645, Timişoara, Calea Aradului 119, Romania

E-mail: spasb [at] animalsci-tm.ro
Phone: +40-256-277160, Fax.: +40-256-277110