Abstract
In this paper results of research of external quality traits of the fertile eggs of Partridge Italian bread in semi extensive system are shown. Research was conducted on sample of 64 eggs, divided in to two groups according to the weight. First group was eggs weighing up to the 60 g (? 60 g) and second group eggs weighing above 60 g (> 60 g). Aim of the research was to determine influence of the weight of the eggs to the external quality traits of fertile eggs, such as weight, length, width and shape index of the eggs in quoted breeding system. Obtained result points to the fact that Partridge Italian in semi extensive system achieves satisfying results in regard of the basic external characteristics of egg quality. Results of the conducted research show that it is needed to give higher attention to the quality of eggs used for planting, to the breeding direction, improvement of the productive and reproductive traits, and therefore to preservation of the genetic potential of different breeds and strains of chicken.
Highlights
Egg quality, especially fertile egg quality of different breeds of chicken and their mixes, compared to hybrids is becoming an object of research of many authors in the world (Sabri et al, 1999; Farooq et al, 2001; Islam et al, 2002; Monira et al, 2003; Anderson et al, 2004; Pohle and Cheng, 2009), and in our country (Mitrović et al, 2011; Đermanović et al, 2012; Đermanović et al, 2013)
Obtained result points to the fact that Partridge Italian in semi extensive system achieves satisfying results in regard of the basic external characteristics of egg quality
Especially fertile egg quality of different breeds of chicken and their mixes, compared to hybrids is becoming an object of research of many authors in the world (Sabri et al, 1999; Farooq et al, 2001; Islam et al, 2002; Monira et al, 2003; Anderson et al, 2004; Pohle and Cheng, 2009), and in our country (Mitrović et al, 2011; Đermanović et al, 2012; Đermanović et al, 2013)
Summary
Especially fertile egg quality of different breeds of chicken and their mixes, compared to hybrids is becoming an object of research of many authors in the world (Sabri et al, 1999; Farooq et al, 2001; Islam et al, 2002; Monira et al, 2003; Anderson et al, 2004; Pohle and Cheng, 2009), and in our country (Mitrović et al, 2011; Đermanović et al, 2012; Đermanović et al, 2013). These researches are specially interesting because of growing organic poultry production. When starting and organizing the organic poultry production one should give advantage to autochthonous breeds which are already adapted to the local breeding conditions and are immune to area specific diseases
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