Influence of birth type on body weight of lambs from birth to weaning in various strains of sheep pramenka
Author:
Ristanovic Bojana1, Ilic Zoran2ORCID, Caro-Petrovic Violeta3ORCID, Stefanovic Vukasin2, Sicheva Irina4, Perovic Natasa5
Affiliation:
1. Faculty of Agriculture - Kruševac, University of Niš, Kruševac, Serbia 2. Faculty of Agriculture, University of Priština, Lešak, Serbia 3. Institute for Animal Husbandry, Belgrade, Serbia 4. Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, Moscow, Russia 5. Faculty for business economics and law - “Adriatik” University Bar, Bar, Montenegro
Abstract
The dynamics of increasing of bodyweight of lambs is conditioned by genetic
factors, environmental factors and their interaction. The aim of this work
was study variability of bodyweight of lambs related to type of birth of
lambs in sheep genotype of four different strains of pramenka type and four
growth stage: at the birth time, at the 30, 60 and 90 days of age after
birth. For this investigation used lambs of four strains (Svrljiski,
Pirotski, Sjeni?ki, Sarplaninski) of sheep type Pramenka (450 lambs per
strain) for study dinamics of bodyweight at the time of birth, 30, 60 and 90
days after birth during three years of experiment (2011-2013). The results
showed that the bodyweight of lambs born singles was higher than bodyweight
of lambs born twins in studied four sheep genotypes i.e. Pirotski (4.00 kg :
3.40 kg), Svrljiski (3.90 kg : 3.79 kg), Sjeni?ki (3.73 kg : 3.61 kg),
Sarplaninski (3.81 kg : 3.74 kg). The differences of bodyweight between
lambs born singles and twins was significant for genotypes Pirot pramenka
and Svrljig pramenka, on the level of significance for Sjenica pramenka and
was not significant in Sarplanina pramenka. At the age of 30 days, the
influence of birth type on the bodyweight of lambs was not statistically
significant in any of the examined strains. The difference of bodyweight
between singles and twins was statistically significant at the 60 days old
of lambs in Svrljig pramenka and in lambs at 90 days old of Svrljig
pramenka. On the base of results is established that type of born associated
with significant differences of bodyweight at the birht time expressed later
at the 60 and 90 day old lambs.
Funder
Ministry of Education, Science and Technological Development of the Republic of Serbia
Publisher
National Library of Serbia
Subject
Plant Science,Genetics
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