Non-Genetic Factors Affecting Birth Weight in the Lambs of Blackheads Pleven Breed

Simeonov, M.; Harmon, D. L.; Nedelkov, K.

doi:10.5455/jasa.20150326081131

Cited by 5 publications

(5 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table (1) shows overall mean of birth weight and weaning weight (4.243 and 23.231) kg, respectively. The year of birth had significantly (P≤0.05) effect on birth weight (table 1), birth weight recorded in this study were, (4.207 and 4.318) kg ewes lambed during 2019 and 2020 respectively, favorable environmental conditions with good availability of the feed during the gestation period, which might have been contributed to higher live body weight of lambs at birth, however, no significant effect of the year of birth on weaning weight, these findings are agreement with those found by (Gowanea et al, 2015;Momoh et al, 2013;Balisany, 2017 andSimeonov et al, 2015). Month of birth had no significant influence on birth weight and weaning weight, these results are in accordance with those reported by several researchers (Alkass, 1993 andThiruvenkadan et al, 2008) However, the results disagreed with other researchers (Raoof and Balisany, 2017) who reported that month of birth had significant influence on birth weight and weaning weight.…”

Section: Resultssupporting

confidence: 91%

Genetic Evaluation and Relationships Between Lams Weight and Body Weight in Kurdi Sheep

Raoof¹

2021

PLANT ARCHIVES

View full text Add to dashboard Cite

This study was carried out at the private field Jezhnikan village, Erbil, Kurdistan region, Iraq, on (101) ewes (245) records and (5)rams of different ages and weights over the period April( 2018) until May(2020, in order to study the genetic evaluation and relationship between lams weight and ewe's weights at matting, birth and milking in Kurdi sheep. The results showed that the overall mean of birth weight (BW) and weaning weight (WW) 4.243 kg and 23.231kg, respectively. It has been shown that the years of birth significantly affected (P≤0.05) on birth weight birth, the weight recorded in this study were, (4.207 kg and 4.318) kg ewes lambed during 2019 and 2020 respectively. The effect was significant (p ≤0.05) for the sex and type of birth in birth weight and weaning weight. However Month of birth and age of dam had non-significant effect on (BW) and (WW). The heritability estimate of (BW) and (WW) was found to be (0.21) and (0.13) respectively. The genetic correlation between (BW) and (WW) were 0.68 highly and significant (P≤0.05) however low and significant (P≤0.05) with ewes weight at (mating, birth and milking) were 0.15, 0.14 and 0.15 respectively, breeding value of rams ranged between-0.113to 0.065 and -0.048to 0.263for (BW) and (WW) respectively, we concluded that most of breeding value and non-genetic factors had important effect of (BW) and (WW).

show abstract

Section: Resultssupporting

confidence: 91%

Genetic Evaluation and Relationships Between Lams Weight and Body Weight in Kurdi Sheep

Raoof¹

2021

PLANT ARCHIVES

View full text Add to dashboard Cite

show abstract

“…These differences in LBW, LWW and KR among lambs born in different years may be attributed to the differences in environmental conditions especially the rainfall level affecting quantity and quality of grasses. Our results are in agreement with the results obtained, in different sheep breeds, by Roshanfekr et al (2011), Abbasi et al (2012) and Simeonov et al (2015) in Arabi, Iranian Baluchi and Blackhead Pleven, respectively.…”

Section: Genetic and Non-genetic Factorssupporting

confidence: 93%

“…The farm had significant effect on the studied criteria, This effect may be due to the differences in management and ram of service, that agreed with the results of Thiruvenkadan et al (2011), Everett-Hincks et al (2014 and Simeonov et al (2015). heritabilities and genetic (rG) and phenotypic (rp) correlations between the studied criteria are shown in Table ( Szwaczkowski et al 2006;Mohammadi et al 2010b;Ghafouri-Kesbi et al 2011;Savar-Sofla et al 2011;Mokhtari et al 2012).…”

Section: Genetic and Non-genetic Factorssupporting

confidence: 75%

“…That studied criteria increased from the 1st to 3rd parity and thereafter decreased substantially. A similar significant effect of the parity of ewe on the body weights at early parities was observed by Thiruvenkadan et al (2011) andSimeonov et al (2015). Lower values for pre-weaning weights for lambs born to younger ewes may be attributed to the relative competition for nutrients between the still growing ewes and the developing fetus (Thiruvenkadan et al 2011), also depression in these traits for the lambs born after the fourth parity may be due to the ewe's tooth decay that results in grazing problems followed by decreasing milk production and maternal care for lambs (Mousa et al 2013).…”

Section: Genetic and Non-genetic Factorssupporting

confidence: 74%

See 1 more Smart Citation

Estimated variance components and breeding values for pre-weaning growth criteria in Romney sheep

Faid-Allah¹,

Ghoneim²,

Ibrahim

2017

JITV

View full text Add to dashboard Cite

ABSTRAKFaid-Allah E, Ghoneim E, Ibrahim AHM. 2016. Estimasi komponen varian dan nilai pemuliaan kriteria pertumbuhan pra-sapih pada domba Romney. JITV 21(2): 73-82. DOI: http://dx.doi.org/10. 14334/jitv.v21i2.1353 Penelitian ini dilakukan untuk melihat komponen-komponen ragam, pengaruh genetik langsung, parameter genetik maternal, estimasi nilai pemuliaan (EBV) dan faktor-faktor yang mempengaruhi kriteria pertumbuhan pra-sapih pada domba Romney.

show abstract

“…The same author reports that birth weight and weaning weight are highly correlated, hence they equally predict the overall post weaning growth performance and carcass performance. The live weight is a parameter of growth performance of lambs from all production types (Simeonov and Pamukova, 2017).…”

Section: Resultsmentioning

confidence: 99%

Growth intensity of lambs from native sheep breeds in Albania

Hysi,

Hoda,

Papa

et al. 2023

JBS

View full text Add to dashboard Cite

The aim of the study was to evaluate the influence of breed and sex on the body weight at different ages from birth to weaning and to compare with exotic ones. The data of live body weight at birth, 30 days, 60 days and weaning time were collected from a total of 180 lambs from two native sheep breeds namely Shkodrane and Lara e Polisit and two imported breeds Awassi and Il de France that are reared in the farm of the Center of Agricultural Technology Transfer of Korca region located in South East of Albania. All the lambs were from a single litter size. The mean body weight at birth was 3.3065 ± 0.307 kg, 7.847 ± 1.979 kg at the age of 30 days, 8.296 ± 2.015at 60 daysand 9.9161 ± 3.188 kg at weaning time of lambs of Shkodrane breed. The mean body weight of Lara e Polisit breed was 3.2500 ± 0.481 kg at birth, 8.9963 ± 2.565 kg at age 30days, 9.045 ± 2.155at 60 days and 10.1857 ± 3.078 kg at weaning time. The average birth weight of lambs from both imported breeds was 37.41% higher than that of both native breeds.The imported breeds have higher body weights at all post natal stages compared to the native breeds and the differences were highly significant (p<0.0001).Body weight at different ages until weaning was significantly affected by the breed effect (p<0.0001). The difference in the body weight of male and female lambs were significantonly at the age of 30 days (p<0.05). Average daily gains from birth to weaning time of lambs were 0.0782 kg and 0.085 kg for Shkodrane e Lara e Polisit, respectively.

show abstract

Non-Genetic Factors Affecting Birth Weight in the Lambs of Blackheads Pleven Breed

Cited by 5 publications

References 32 publications

Genetic Evaluation and Relationships Between Lams Weight and Body Weight in Kurdi Sheep

Genetic Evaluation and Relationships Between Lams Weight and Body Weight in Kurdi Sheep

Estimated variance components and breeding values for pre-weaning growth criteria in Romney sheep

Growth intensity of lambs from native sheep breeds in Albania

Contact Info

Product

Resources

About