THE LEPTIN GENE POLYMORPHISM AND THE PRODUCTION TRAITS IN THE YOUNG BOARS
Journal Title: Acta Scientiarum Polonorum Zootechnica - Year 2009, Vol 8, Issue 1
Abstract
The aim of the present study was to evaluate the effect of leptin gene polymorphism on the fattening and slaughter performance traits in the Polish Synthetic Line 990 young boars and to estimate the frequencies of LEP/HinfI alleles and genotypes.Altogether, 205 young boars of the 990 line were included in the study. Based upon the carried out live evaluation, information was obtained in respect of following traits: body weight on day 21, 28, 70 and 180 of life; average daily gain; feed efficiency; mean backfat thickness; height of m. longissimus dorsi; percent meat content; and selection index. Genotype determination was performed using the PCR-RFLP technique. The lengths of the restriction fragments for respective alleles following digestion with HinfI were: 152 bp (allele T) and 84 + 68 bp (allele C). Two genotypes were found, TT (frequency 0.8) and TC (frequency 0.2). The analysis of relationship between different LEP genotypes and all analysed traits showed small and statistically non-significant differences.
Authors and Affiliations
Anita Kołodziej, Arkadiusz Pietruszka, Eugenia Jacyno, Maria Kawęcka, Dorota Stępień-Poleszak, Agata Sobocińska
MEAT QUALITY OF BROILER CHICKENS FED MIXTURES WITH VARIED LEVELS AND VARIETIES OF FABA BEAN
The material were leg muscles collected from 40 broiler chickens from 5 feeding groups (I, II, III, IV and V). The differentiating factor of the groups were the seeds of faba bean added to starter/grower feed, according...
Assessment of Budgerigar (Melopsittacus undulatus) hatching in private breeding
The aim of this study was to evaluate the budgerigar hatching in private breedings. The study was carried out in a private breeding in Masovian voivodeship between 2009 and 2012 on four pairs of budgerigars kept in year-...
PROFITABILITY ANALYSIS OF LIMOUSIN CATTLE ORGANIC FARMING COMPARED TO THE CONVENTIONAL CATTLE MANAGEMENT SYSTEM
The aim of the study was to analyze the profitability of organic farming of Limousin cattle and to compare selected production parameters with the conventional management system. The material involved 39 cows and their o...
ASSOCIATION BETWEEN PRIMIPAROUS AND LIFETIME PERFORMANCE OF COWS
Analyses were performed based on records from the SYMLEK database. Data on milk performance of 20 068 Polish Holstein-Friesian cows were accounted for. Productive and functional traits were analysed alongside culling rea...
PHYSIOLOGICAL PARAMETERS IN BROILER CHICKENS REARED UNDER DIFFERENT HOUSING SYSTEMS DURING A PERIOD OF HIGH TEMPERATURES
The experiment was conducted during the summer production cycle. Broiler chickens kept on litter – group I and on litter with access to pasture – group II. Throughout the experiment, mortality were recorded. During the s...