Influence of non-genetic factors on the maternal ability of Santa Inês ewes

Torres, Tatiana Saraiva; Sena, Luciano Silva; Ó, Alan Oliveira do; Santos, Gleyson Vieira dos; Rocha, AO; Sarmento, José Lindenberg Rocha

doi:10.1590/0103-8478cr20200580

Cited by 4 publications

(5 citation statements)

References 28 publications

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“…Our research is in accordance with the statements of the following researchers (BOUJENANE et al, 2013;CARO PETROVIĆ et al, 2013;YAVARIFARD et al, 2015;TORRES et al, 2021), who state that the development of lamb body weight is determined by the genotype and environment in which the organism develops.…”

Section: Table 1 Influence Of Type Of Birth On Body Weight Of Lambs A...supporting

confidence: 90%

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Influence of birth type on body weight of lambs from birth to weaning in various strains of sheep pramenka

Ristanovic

Ilić²,

Caro-Petrović

et al. 2022

Genetika

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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.

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Section: Table 1 Influence Of Type Of Birth On Body Weight Of Lambs A...supporting

confidence: 90%

“…The development of lamb bodyweight, especially during the period from birth to weaning, is determined by the genotype and environment in which the organism develops (BOUJENANE et al, 2013;CARO PETROVIĆ et al, 2013;YAVARIFARD et al, 2015;TORRES et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Influence of birth type on body weight of lambs from birth to weaning in various strains of sheep pramenka

Ristanovic

Ilić²,

Caro-Petrović

et al. 2022

Genetika

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show abstract

“…Also, the arrival of single lambs with a higher weight at weaning and their superiority in weight gain may be due to the single lambs consuming a proportionally greater amount of milk than the amount consumed by the twin lambs and to the amount of care provided by the dams of single lamb compared to twins (Abdul-Rahman and Al-Barzinjy, 2007). This finding is consistent with that of Elia (2018) and Torres et al (2021). Male lambs outperformed female lambs in their weight at birth and weaning, and weight gain by 0.27, 3.21 and 2.94 kg, respectively (Table,3).…”

Section: Growth Of Lambssupporting

confidence: 84%

دراسة إنتاج الحليب وبعض مكوناته الكيميائية وعلاقته بنمو حملان الأغنام العواسية

عبدالله¹

2023

Journal of Agricultural, Environmental and Veterinary Sciences

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Data were analyzed from of two flocks of Awassi sheep. The first flock belongs to the College of Agriculture and Forestry, Mosul University, and the second flock belongs to Animal Breeding Station, Mosul (Al-Rashedia) which conducted on 799 and 802 records of ewes and born lambs were recorded during two seasons 2009-2010. The results revealed highly significant (P<0.01) effects for the flock, year, age of dam, and type of birth on daily milk yield (DMY). The year had a highly significant influence (P<0.01) on all milk traits except on fat percentage. The age of dam also had a significant effect (P<0.05) on Somatic Cell Count (SCC). The effects of the flock, age of dam, type of birth and sex of lamb were highly significant (P<0.01) on birth weight (BW), weaning weight (WW), and gain from birth to weaning (GBW). The year had a significant influence (P<0.01) on (WW) and (GBW). There were Positive and highly significant (P<0.01) correlation between milk components, between milk yield and (BW), (WW), and between (BW) and (WW). While it was negative between milk yield and its components.

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“…W hile it did not agree with Al-Khazraji et al (2016) reported in their study that summer births gave higher weights compared to winter births, Raoof and Balisany (2016) indicated in their study, as they found that spring lambs gave heavier weights at weaning compared to winter lambs. It also did not agree with Torres et al 2021 showed that the birth season had no significant effect on the weights of lambs at birth and weaning.…”

Section: Rusluts and Discussionmentioning

confidence: 81%

Seasonal Influence on Productive and Growth Performance in Awassi Sheep

Al-Dahl

Shihab

Hadi

2022

AJDFR

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Background: Sheep are one of the important sources of agricultural production in the country and they are one of the pillars of agricultural income. Awassi sheep constitute the numerical majority of Iraqi sheep, as it represents 55-60%. A modern method must be used to in feed, management, improvement of environmental and genetic improvement to increase that productivity in a way that matches the importance of these animals in the livestock sector to achieve the desired target. The season of birth is one of the environmental factors affecting the weight and growth rate of the lambs. Methods: The study was conducted using forty Awassi ewes, 3-4 years old. lambed single male lambs distributed over the two birth seasons (20 ewes/season). The first season was at winter (October to December) and the second season was at spring (February to May). Milk samples were collected 50 ml/ewe for analysis of its components such as fat, protein and solids non-fat percentage, by the German Eco-Milk analyses device. Result: The results of the statistical analysis showed no significant effect for birth season on weight of lambs at birth and a months after birth for the two seasons, while the differences were significant (p≤0.05) at the age of 2 and 3 months in favor of the winter birth. Milk production showed a significant increase (p≤0.05) at the second and third months of ewes in spring season compared to winter. the results showed a significant (p≤0.05) superiority for the percentage of fat, non-fat solids and protein for winter season ewes. A significant positive correlation (p≤0.05) was observed for winter season ewes in body weight, milk fat and protein ratio, a significant positive correlation (p≤0.05) for spring season ewes between body weight and milk production. While the results showed a significant negative correlation (p≤0.05) between the percentage of milk fat for ewes between winter and spring seasons and a highly significant positive relationship (p≤0.05) for milk protein, non-fat solids and weight of ewes for winter and spring seasons, respectively.

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Influence of non-genetic factors on the maternal ability of Santa Inês ewes

Cited by 4 publications

References 28 publications

Influence of birth type on body weight of lambs from birth to weaning in various strains of sheep pramenka

Influence of birth type on body weight of lambs from birth to weaning in various strains of sheep pramenka

دراسة إنتاج الحليب وبعض مكوناته الكيميائية وعلاقته بنمو حملان الأغنام العواسية

Seasonal Influence on Productive and Growth Performance in Awassi Sheep

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