Evaluation of some factors on birth and weaning weights in Awassi sheep by using GLM and CART analysis

Şahin, Özcan

doi:10.1007/s11250-022-03405-2

Cited by 4 publications

(1 citation statement)

References 33 publications

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“…The BW was lower than that presented by Montes-Vergara et al [ 3 ] (2.8 ± 0.21 kg), Vergara et al [ 4 ] (2.6 ± 0.6 kg), Palacios et al [ 2 ] (2.8 ± 0.8 kg), Noriega et al [ 5 ] (3.2 ± 0.5 kg), and Lenis et al [ 12 ] (3.10 ± 0.70 kg). These differences are associated with the number of lambs at birth [ 34 ], ewe age [ 35 , 36 ], the feeding management of the pregnant ewes during the last third of gestation [ 37 ], and the male used during the breeding season [ 3 ].…”

Section: Discussionmentioning

confidence: 99%

Association of the MC4R gene with growth traits and meat quality in Colombian hair sheep

Herrera,

lez,

rez

2023

J Adv Vet Anim Res

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Objective: The objective of this study was to associate the 1016G > A variant of the melanocortin-4 receptor gene with lamb’s weight, growth, and meat quality in the Colombian hair sheep breed. Materials and Methods: A total of 168 lambs, weights were measured at birth weight (BW), at weaning adjusted weaning weight (AWW), at 6 months [adjusted weight (AW180)], at slaughter adjusted slaughter weight (ASW), daily weight gain preweaning daily gain (preWDG), and postweaning daily gain (postWDG) weaning, and after slaughter, pH, texture, and cook-loss (CL) in the longissimus thoracis et lumborum (LTL) muscle according to the American Meat Science Association methodology. The 1016G > A genotypes were obtained by sequencing. Genotypic and allele frequencies, heterozygosities, and Hardy–Weinberg equilibrium (HWE) were estimated. Using a generalized linear model, the genotype and the allelic substitution effect were associated with the evaluated traits. Results: The heterozygous genotype (0.48) and G allele (0.61) were the most frequent. Heterozygosities were similar (0.47), indicating HWE. The genotype affected the BW (p < 0.05), with a higher value for the GG genotype (2.69 kg). AWW (12.75 kg), AW180 (19.67 kg), and ASW (31.21 kg) weights and daily weight gain (preWDG = 115.41 gm; postWDG = 96.16 gm) were not associated. Average pH, Warner-Bratzler shear force, and CL were 5.75 units, 49.46 N, and 32.02%, with no genotype effect. The G > A substitution only affected BW at −388 gm (p < 0.05). Conclusion: The 1016G > A variant is polymorphic and affects the BW but not other growth traits or the meat quality of the LTL muscle.

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Section: Discussionmentioning

confidence: 99%

Association of the MC4R gene with growth traits and meat quality in Colombian hair sheep

Herrera,

lez,

rez

2023

J Adv Vet Anim Res

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Assocıatıon between growth hormone gene polymorphısm and some growth traıts in Akkaraman and Anatolian Merino sheep

Tanış,

Keskin

2024

Mol Biol Rep

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Influence of environmental, geographic, socio-demographic, and epidemiological factors on presence of malaria at the community level in two continents

Villena,

Arab,

Lippi

et al. 2024

Sci Rep

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The interactions of environmental, geographic, socio-demographic, and epidemiological factors in shaping mosquito-borne disease transmission dynamics are complex and changeable, influencing the abundance and distribution of vectors and the pathogens they transmit. In this study, 27 years of cross-sectional malaria survey data (1990–2017) were used to examine the effects of these factors on Plasmodium falciparum and Plasmodium vivax malaria presence at the community level in Africa and Asia. Monthly long-term, open-source data for each factor were compiled and analyzed using generalized linear models and classification and regression trees. Both temperature and precipitation exhibited unimodal relationships with malaria, with a positive effect up to a point after which a negative effect was observed as temperature and precipitation increased. Overall decline in malaria from 2000 to 2012 was well captured by the models, as was the resurgence after that. The models also indicated higher malaria in regions with lower economic and development indicators. Malaria is driven by a combination of environmental, geographic, socioeconomic, and epidemiological factors, and in this study, we demonstrated two approaches to capturing this complexity of drivers within models. Identifying these key drivers, and describing their associations with malaria, provides key information to inform planning and prevention strategies and interventions to reduce malaria burden.

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Evaluation of some factors on birth and weaning weights in Awassi sheep by using GLM and CART analysis

Cited by 4 publications

References 33 publications

Association of the MC4R gene with growth traits and meat quality in Colombian hair sheep

Association of the MC4R gene with growth traits and meat quality in Colombian hair sheep

Assocıatıon between growth hormone gene polymorphısm and some growth traıts in Akkaraman and Anatolian Merino sheep

Influence of environmental, geographic, socio-demographic, and epidemiological factors on presence of malaria at the community level in two continents

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