Influence Of Feed Protein Intake On Major Parties Of Carcass Tetra H Chicks Reared In Organic System

• Main Authors: Florica Irina Mic, Drinceanu Dan, Simiz Eliza, Stef Lavinia, Gherasim Voichita
• Format: Article
• Language: English
• Published: Agroprint Timisoara 2013-05-01
• Series: Scientific Papers Animal Science and Biotechnologies
• Subjects: protein level, quality of carcasses, organic system
• Online Access: http://spasb.ro/index.php/spasb/article/view/168
• ISSN: 1841-9364; 2344-4576

The purpose of this paper is to analyze the influence of feed protein level and the duration of CM intake phases on chicken efficiency at slaughter, and of anatomical parts and comestible internal organs of Tetra H hybrid chickens raised organically. The biological material used in the experiment consisted of 102 Tetra H hybrid chickens at the age of 112 days, in three experimental groups under the following nutritional conditions, as follows: G1 – 34 chickens triphase fed with CM 22%, 19.03% and 17.5% CP; G2- 34 chickens biphase fed with CM 22% and 17.5% CP; G3- 34 chickens biphase fed with CM 19.73% and 15.75% CP. Statistical processing of the results was performed with the IBM SPSS 19. Under experimental conditions, it is observed that the experimental group that consumed a CM with 22% PB for 21 days, and a CM with 17.5% CP in the remainder of the increase, recorded higher efficiency compared to alternative commercial with feeding triphase (G1), and compared to variant fed biphase but with lower protein in concentrated mixtures of (G3). High protein level in CM using a biphase feeding had an important influence in the main anatomical parts weight (breast, legs, wings and offal) but we cannot say the same when it comes to their weight in the carcass where the differences are insignificant. In order not to affect carcass yield and the share of the comestible internals and anatomical parts for living birds Tetra H hybrid, it is recommended a biphase diet (Phase I of 21 days, Phase II of 91 days) in CM conditions providing 22% CP, respectively 17.5% CP and an energy level of at least 3000 kcal ME / kg CM.