THE EFFECT OF DIFFERENT 12-HOUR PRE-SLAUGHTER FASTING REGIMES ON SELECTED SLAUGHTER TRAITS HAEMATOLOGICAL PARAMETERS AND BLOOD MINERAL CONCENTRATIONS IN BROILER CHICKEN
Journal Title: Acta Scientiarum Polonorum Zootechnica - Year 2015, Vol 14, Issue 4
Abstract
The study aimed at determination of the effect of 12-hour fasting on the slaughter value and the level of haematological and mineral indices in the blood of broiler chickens. The study was conducted on 6-week-old Hybro commercial crossbred chickens with an even sex ratio (1:1), divided into 3 groups, 40 individuals each. Group I had access to feed and water for the entire 12-hours experiment, group II was deprived of feed but had access to water, whereas group III was deprived of both food and water for the whole 12 hours. Blood was sampled at the same time as the slaughter, with the following parameters being assayed in the whole blood: haemoglobin level (Hb), haematocrite value (Ht) and K+, Na+, Cl– concentration, whereas Ca, Mg, P contents was checked in the blood serum. The body weight of chickens was determined before and after fasting, whereas liver weight and breast muscle pH were checked after 15 minutes after slaughter. The conducted examination showed that chicken body and liver weights were significantly lower in the groups exposed to fasting. Feed and water deprivation in the examined birds did not affect the breast muscle pH after 15 minutes from the slaughter. The pH of breast muscles measured 15 minutes after slaughter was typical for good quality meat, which points to lack of disturbances in post-slaughter transformations in chicken breast muscles due to stress connected with a 12-hour fasting. The applied fasting induced a significant increase in the concentration of chlorine ions in blood. In case of magnesium, differences were found only between experimental groups. Its level in group III was the lowest, whereas in group II the highest compared to the other examined groups.
Authors and Affiliations
Małgorzata Jakubowska, Józefa Gardzielewska, Tadeusz Karamucki, Artur Rybarczyk, Beata Byczkowska
Keywords
Related Articles
- EP ID EP349073
- DOI -
- Views 119
- Downloads 0
LAYING PERFORMANCE, EGG QUALITY AND HATCHING RESULTS IN GEESE FED WITH DRY APPLE POMACES
The article provides the results of the studies on the efficiency of using dry apple pomaces with and without chelate copper and zinc addition in diet of breeding geese. The experiment demonstrated the effective level of...
GENETIC AND PHENOTYPIC CHARACTERISTICS OF POLISH KONIK HORSES MAINTAINED IN THE RESERVE AND STABLE SYSTEM IN CENTRAL-EASTERN POLAND
The aim of this study was to determine the impact of genetic diversity on the features like breeding, performance parameters and adaptation to living in natural habitat resulting from the particular degree of consanguini...
THE COMPOSITION AND PHYSICOCHEMICAL PROPERTIES OF COLOSTRUM IN BLACK-AND-WHITE POLISH HOLSTEIN-FRIESIAN COWS, MONTBÉLIARDE COWS AND THEIR CROSSBREEDS
The study involved 32 cows, including 13 Black-and-White Polish Holstein-Friesian cows, 6 Montbéliarde cows and 13 crossbred cows. Material for the study included samples of colostrum, which were analysed for basic compo...
EFFECT OF SEASON AND PRODUCTION SYSTEM ON BOVINE MILK FAT CONTENT AND DISPERSION
We analyzed the effect of dairy cows management system and season on milk fat content and dispersion. The milk was collected from HF cows, Black-and-White variety, managed in 7 production farms located in central-eastern...
THE RELATIONSHIP BETWEEN GENETIC VARIANTS OF B-LACTOGLOBULIN AND K-CASEIN AND SELECTED PARAMETERS OF THE SUITABILITY OF MILK FOR CHEESE PRODUCTION
A key stage in cheese production is the coagulation of milk proteins, leading to the formation of a curd. The aim of the study was to determine how genetic variants of β-lactoglobulin (BLG) and κ-casein (CSN3) are linked...