Effect of environmental and paragenetic factors on birth mass variability of Mis sheep populations

Petrovic, M.P.; Muslic, Dragana Ruzic; Maksimovic, Nevena; Memiši, N.

doi:10.2298/bah0904213p

Cited by 17 publications

(15 citation statements)

References 10 publications

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“…Significantly higher values of LW100 (+3.70 kg; P < 0.05) was observed in ram lambs compared to the ewe lambs, as confirmed by Cloete et al (2007), Petrović et al (2009) or Mohammadi et al (2010). According to Stanford et al (2001) or Abdullah et al (2010) the effect of lamb sex is one of the most important factors influencing ultrasound measurements of lambs.…”

Section: Effect Of Sex Of Lambsmentioning

confidence: 87%

Influence of selected factors on growth performance of Suffolk lambs and their crossbreds

Ptáček¹,

Ducháček²,

Beran³

et al. 2015

j. cent. eur. agric.

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The monitoring was performed in one year period in selected population of Suffolk sheep (SF, n = 257) and their crossbreds with Merinolandschaf (SF × ML, n = 87). Total of 627 lambs (SF, n = 463; SF × ML, n = 164) were observed in breeding conditions of two semi-extensive flocks. Lambs' live weight at 100 days of age (LW100); musculus longissimus lumborum et thoracis (MLLT100) depth and backfat thickness (BT100) at the same age were assessed. Effects of breed, ewes' live weight at mating, litter size, sex of lambs and ewe's age as linear regression were evaluated using SAS 9.1. Significant differences (P < 0.05) in LW100, MLLT100 and BT100 between SF and SF × ML were observed. All the evaluated traits of growth performance were also influenced (P < 0.05) by ewes' live weight at mating. The highest lambs' growth performance traits were detected in lambs of ewes with highest live weight at mating (group of ≥ 80.7 kg). Significant differences (P < 0.05) were observed among singles, twins and triplets lambs as well. Significantly higher LW100 was marked in ram lambs compared to ewe lambs (P < 0.05).

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Section: Effect Of Sex Of Lambsmentioning

confidence: 87%

Influence of selected factors on growth performance of Suffolk lambs and their crossbreds

Ptáček¹,

Ducháček²,

Beran³

et al. 2015

j. cent. eur. agric.

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“…Body weight of lambs has a major role in achieving profitable results. Initial body weight affects not only growth, but also vitality and mortality of lambs (Morris et al, 2000;Cloete et al, 2001;Zapasnikiene, 2002;Berhan and Arendonk, 2006;Petrovic et al, 2009). Not all breeds of sheep have potential for high daily weight gains.…”

Section: Introductionmentioning

confidence: 99%

Effect of genetic and environmental factors on the phenotype characteristics of lambs

et al. 2015

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The aim of this study was to determine the influence of environmental factors affecting body weight variability of lambs in two crossbreed groups: Pirot x Württemberg and Sjenica x Württemberg. Both populations were managed under the same farm conditions. The data were analyzed to determine the effect of age of the dam, weight of dam, birth type, sex, year and season, on the birth weight and weaning weight of crossbreed lambs. Statistical analysis was performed by GLM procedure using the SPSS statistical package program. The average birth weight of Pirot x Württemberg lambs was 3.56 kg while Sjenica x Württemberg lambs was slightly higher at 3.69 kg. The difference on birth weight between the two crosses was not statistically significant (P>0.05). The average weaning weight of Pirot x Württemberg lambs was 23.54 kg while Sjenica x Württemberg lambs had higher weight at 24.37 kg. The difference of 0.83 kg on weaning weight was statistically significant (P <0.05). Body weight, depending on the environmental factors, ranged from 3.17 to 3.96 kg at birth and from 22.12 to 24.18 kg at weaning in Pirot x Württemberg lambs. Body weight of Sjenica x Württemberg lambs ranged from 3.39 to 3.99 kg at birth and from 22.69 to 25.44 kg at weaning. Statistical analysis showed that the differences were statistically significant (P<0.05) and highly significant (P<0.01).

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“…Apart from the said environmental factors, the mothers' age, type of birth and sex of lamb, i.e. factors that cannot be called environmental, but a certain biological category (Petrović et al, 2009). The weight of the dam at service significantly affected the birth weight of their lambs (Hussain et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Effect of genotype, sire, sex, gestation length on birth weight of lambs

Caro-Petrović

Petrovic

Ilić³

et al. 2013

BIOTEC ANIM HUSB

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The birth weight of lambs has an essential role in satisfying sheep production. Also reflected as primary factor later development of young organism. In the study included: gestation length, sire (two sires in each genotype during parenting), sex of lambs at birth, the birth weight of single lambs from well nourished mature ewes of the next genotypes: Miss (1), Wurttemberg (2) and Ile de France (3). The highest birth weight was obtained in genotype 3 with an average birth weight of 4.63 kg in sire 2 and 4.44 kg in sire 1 with a difference of 0.19 kg. Gestation length of genotype 1 ranged from 144 to 153 days; genotype 2, from 148 to 154 days and the genotype 3, from 144 to 151days. The highest average birth weight in genotype 1 with gestation length of 153 days weighed 5.10 kg. Average birth weights of male lambs in all genotypes were higher than the females. There were a very significant effect of genotype, sire, gestation length on birth weight of lambs (P<0.01), but sex have no significant effect on birth weight of lambs (0.065;P>0.05). The result achieved therefore can be explained that the effect of genotype, sire and gestation length and the interaction between subjects effects such as the next: Sire*Gestation length; Sire*Sex; Gestation length*Sex; Sire*Gestation length*Sex were highly and significantly affected the birth weight of lambs (P<0.01; P<0.05). The interactions between subjects' effects will be a good indicator to be acquainted more on their influence in a certain trait.

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Effect of environmental and paragenetic factors on birth mass variability of Mis sheep populations

Cited by 17 publications

References 10 publications

Influence of selected factors on growth performance of Suffolk lambs and their crossbreds

Influence of selected factors on growth performance of Suffolk lambs and their crossbreds

Effect of genetic and environmental factors on the phenotype characteristics of lambs

Effect of genotype, sire, sex, gestation length on birth weight of lambs

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