Effects of chitosan coating and different storage periods of broiler breeder eggs on growth performance and carcass characteristics

Abstract

Non-ruminants Full-length research article Effects of chitosan coating and different storage periods of broiler breeder eggs on growth performance and carcass characteristics ABSTRACT-This study was carried out to determine the effects of coating with chitosan film and storing at different periods (7, 14, and 21 days) of broiler breeder eggs on growth performance and carcass characteristics of the chicks. The present study was arranged as three different storage periods (7, 14, and 21 days) and coating or not the eggs with chitosan film. In total, 1800 hatching fertilized eggs were used. These eggs were divided into six groups with 100 eggs in each and 600 eggs in each replication. A total of 751 chicks obtained from the hatching were used as material in this study. As a result, all chicks in the coated chitosan groups were alive during the 42-day growth period. The average hatching weight was determined as 42.7±0.1 g. The mean body weight (BW) of chicks on the 42nd day was determined as 2541.8±12.3 g in all groups. The effect of repetition on weekly BW and body weight gain (BWG) was found to be significant in the growth period. The differences between the groups for the BW were significant on day 1. While the weekly BWG varied, the growth performance was similar in the growth period in all groups. The differences between the groups in terms of slaughter weight and carcass characteristics were insignificant. It was determined that coating broiler eggs with chitosan and storing them in different periods does not have significantly negative effect on growth performance and carcass characteristics.

Effects of pre-storage gum arabic application on hatch results and chick performance in hatching quail eggs

“…The relative growth of 14-10G (469) treatment group was lower compared with those of the 7-5G (543) and 7-10G (539) treatment groups (P<0.05). These results are inconsistent with Köseman et al, (2020a) who found pre-storage chitosan application did not have a negative effect on chick body weight gain.…”

“…Some coating materials have been used to reduce the negative effects of long term storage. These coating materials are propolis (Aygun and Sert 2013), chitosan (Köseman et al, 2020b;Köseman et al, 2020a), stretch (Durmuş et al, 2009), and chitosan-nanoparticles (Chekh et al, 2021).…”

Influence of Storage Period, Chitosan Coating and Diluted Acetic Acid Spraying on Hatching and Hatched Chicks Characteristics

“…It has also been demonstrated [15] that spraying fertilised Dandrawi eggs with vinegar at a concentration of 2.5% enhances embryonic growth and plays a significant role in increasing hatchability by improving blood components and hormones and reducing bacterial contamination of the egg shell surface. These results contradict the findings of [16].in which the author explains that the embryos that hatched from chitosan-coated eggs died early and only a few reached embryonic development in the medium and long term, because the chitosan coating blocks the pores on the surface of the egg shell and forms a barrier between the internal and external environment. The egg and, consequently, the embryos are unable to breathe, and their growth ceases.…”

“…A chitosan solution for dipping hatching eggs was prepared by dissolving 10 g of chitosan in 1 litre of distilled water, adding 10 ml of concentrated acetic acid to adjust the acidity of the solution, and adding 20 ml of glycerol to prevent the shell from cracking, all while stirring the solution continuously. By magnetic vortex at a temperature of 45 degrees Celsius for forty minutes [16]. A solution of diluted acetic acid was prepared by dissolving 2.5 ml of acetic acid in 100 ml of purified water containing 2.5% diluted acetic acid.…”