COMPARISON OF THE GROWTH AND BODY CONFORMATION OF DUCKS REARED IN SEMI-INTENSIVE OR INTENSIVE SYSTEMS
Journal Title: Acta Scientiarum Polonorum Zootechnica - Year 2017, Vol 16, Issue 3
Abstract
The aim of the study was to compare the growth and body conformation of ducks raised in a semi-intensive and an intensive system. The material for the research was Pekin Star 53 H.Y. crossbred meat ducks of French origin. The ducks were reared for 8 weeks. The birds from group I were reared in an intensive system and the birds in group II in a semi-intensive system. At the completion of the rearing period, at 8 weeks of age, the mean body weight of the birds in group I, reared intensively, was 3480.3 g, while that of the group II birds, reared in the semi-intensive system, was 3000.2 g The results indicate had irrespective of sex, young ducklings, i.e. in the first 3 weeks, had the fastest growth rate. The massiveness index in the birds’ first week of life was on average 1.7% for males and females in both groups. In the eighth week it was 11.4% and 11.0% in groups I and II. In both study groups the males had higher or significantly higher massiveness indices on all weeks of live. It should be noted that females had a lower massiveness index than the males and a higher compactness index. The compactness index, defined as the percentage ratio of the chest circumference to the trunk length, continually decreased as the ducks grew older: it was on average 144.7% in group I and 142.6% in group II in the first week and 117.7% and 119.3% in the eighth week.
Authors and Affiliations
Barbara Biesiada-Drzazga, Dorota Banaszewska, Eugeniusz Wencek
Keywords
Related Articles
- EP ID EP380272
- DOI 10.21005/asp.2017.16.3.06
- Views 96
- Downloads 0
PERFORMANCE TEST RESULTS ANALYSIS OF CROSSBRED GILTS PRODUCED IN THE BYDGOSZCZ BREEDING REGION
The aim of this study was to analyse the results of performance test of crossbred gilts of Polish Large White and Polish Landrace breed conducted in years 2009–2013 in the Bydgoszcz Breeding Region. They came from two cr...
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...
ANALYSIS OF REPRODUCTION AND GROWTH IN FANCY PIGEONS
The study was conducted on ornamental pigeons kept by a private pigeon breeder in Poland. The experimental population was Polish Owl and Warsaw Butterfly Tumbler pigeons and the offspring obtained from pairs of these bre...
COMPARISON OF INBREEDING COEFFICIENTS IN POLISH HALFBRED AND HOLSTEIN STALLIONS
The aim of this study was to compare the inbreeding coefficients (F) in Polish Halfbred (PH) and Holstein (H) stallions in the area of their Associations’ activity in 2004 and 2012. A total of 184 PH and 209 H stallions...
PROPORTION OF MILK SAMPLES WITH A SPECIFIC PROTEIN AND UREA CONTENT DEPENDING ON SELECTED FACTORS WHEN EVALUATING DIETARY PROTEIN AND ENERGY BALANCE FOR DAIRY COWS
Analysis was made of the effect of herd, lactation number, day of lactation, season of testing, daily milk yield, and milk somatic cell count on the proportion of cow milk samples with a specific protein and urea content...