Article
Agriculture, Dairy & Animal Science
Leticia Fernanda de Oliveira, Paulo Savio Lopes, Layla Cristien Cassia Miranda Dias, Leandro Magno Dornelas e Silva, Hugo Teixeira Silva, Simone Eliza Facioni Guimaraes, Daniele Botelho Diniz Marques, Delvan Alves da Silva, Renata Veroneze
Summary: This study estimated genetic parameters, effective population size, inbreeding, and inbreeding depression in Piau pigs. The results showed low direct heritabilities for birth weight and weaning weight, while average pre-weaning daily weight gain showed moderate heritability. There were high genetic correlations between weight at birth and weight at weaning, as well as weight at weaning and average pre-weaning daily weight gain. Inbreeding increased over generations and led to a reduction in effective population size. Inbreeding had a significant effect on average pre-weaning daily weight gain, with a decrease of 0.005 g for every 1% increase in inbreeding coefficient. Increasing effective population size is necessary to control inbreeding and preserve genetic variability in the Piau pig population.
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2023)
Article
Biology
Alipio dos Reis Teixeira, Renata Veroneze, Vinicius Eduardo Moreira, Lorena Duarte Campos, Sabata Cristina Januario Raimundi, Paulo Henrique Reis Furtado Campos
Summary: The study aimed at evaluating the effects of ambient temperature on the performance and thermoregulatory responses of Piau purebred pigs. Results showed that Piau pigs acclimated to 30 degrees C by increasing body skin temperature, respiratory rate, and reducing voluntary feed intake in order to optimize heat loss and reduce heat production associated with digestion and metabolic processes, which negatively impacted body weight gain.
JOURNAL OF THERMAL BIOLOGY
(2021)
Article
Genetics & Heredity
Lijun Shi, Huihui Li, Lixian Wang
Summary: In this study, the heritability and repeatability of gestation length (GL) were estimated, and 1,002 SNPs strongly associated with GL were identified. Additionally, 20 promising candidate genes were proposed.
FRONTIERS IN GENETICS
(2023)
Article
Multidisciplinary Sciences
Merik Rocha-Silva, Jose Lindenberg Rocha Sarmento, Fabio Barros Britto, George Vieira do Nascimento, Lilian Silva, Geandro Carvalho, Geovergue Rodrigues de Medeiros
Summary: This study evaluated the genetic variability and population structure of Curraleiro Pe-duro cattle in Brazil. The results showed a high genetic diversity among the cattle, despite some differences in genetic structure among sampling sites.
Article
Biotechnology & Applied Microbiology
Dan Wang, Liu Yang, Chao Ning, Jian-Feng Liu, Xingbo Zhao
Summary: This study compared the accuracy of mitogenome alignment and SNP calling using three different types of reference sequences for mitochondrial DNA analyses. The results showed that breed-specific reference sequences were optimal for mitogenome analyses, providing a refined processing perspective for NGS data.
Article
Food Science & Technology
Yufei Guo, Katharine Sharp, Harvey Blackburn, Brian Richert, Kara Stewart, Stacy M. S. Zuelly
Summary: This study compared the meat processing characteristics of different pig breeds and diets, and found that breed and diet had significant effects on the length, thickness, lean area, processing yield, color, and firmness of the pork.
Article
Agriculture, Dairy & Animal Science
Dimitrios Loukovitis, Maria Szabo, Dimitrios Chatziplis, Istvan Monori, Szilvia Kusza
Summary: The Hungarian Merino sheep breed shows significant genetic diversity, with low genetic differentiation among most flocks. However, two flocks exhibit greater genetic distance. The findings of this study can guide a breeding strategy for the Hungarian Merino breed, emphasizing the preservation of within-flock genetic diversity and monitoring of inbreeding to maintain potential genetic uniqueness.
ANIMAL BIOTECHNOLOGY
(2023)
Article
Agriculture, Dairy & Animal Science
Sergei Yu Zaitsev, Anna A. Belous, Oksana A. Voronina, Roman A. Rykov, Nadezhda Bogolyubova
Summary: The study found varying degrees of correlations between major biochemical and antioxidant parameters of pigs' blood in different breeds and feeding conditions, which can help in understanding the physiological and biochemical status and antioxidant features of pigs.
Review
Agriculture, Dairy & Animal Science
Ainhoa Sarmiento-Garcia, Ceferina Vieira-Aller
Summary: In the past decade, there has been growing concern over intensive pig-rearing systems, leading to increased demand for environmentally friendly and animal-friendly production. Indigenous pig breeds, known for their rusticity and high-quality meat, have advantages in terms of intramuscular fat content and lipid profile, which contribute to improved technological and sensory properties as well as healthier products. However, more research is needed on dietary strategies to further enhance the meat quality of these native breeds compared to commercial breeds.
Article
Agriculture, Dairy & Animal Science
Baldomero Molina Flores, Maria Esperanza Camacho Vallejo, Juan Vicente Delgado Bermejo, Francisco Javier Navas Gonzalez, Maria del Amparo Martinez
Summary: The Egyptian Baladi cattle is a native taurine breed from the Nile Valley, known for its adaptability, high genetic diversity, and slight influence from Bos indicus. Rural communities in Upper Egypt have preserved this breed and implementing conservation and breeding programs is crucial for its preservation and improvement.
ANIMAL BIOTECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Yifu Wang, Jinhua Cheng, Chao Xu, Jian Jin, Wenbin Bao, Shenglong Wu, Zhengchang Wu
Summary: This study provides an extensive overview of circRNA expression profiles during spleen development in Meishan pigs. Through analysis, thousands of circRNAs and their host genes were identified. Additionally, circRNAs were found to interact with immune-related genes through miRNA sponges. These findings demonstrate the differential expression of circRNAs during different stages of spleen development and their interaction with immune-related genes.
Article
Agriculture, Dairy & Animal Science
Josue Chinchilla-Vargas, Francesca Bertolini, K. J. Stalder, J. P. Steibel, M. F. Rothschild
Summary: 1) Random forest was effective at classifying individuals into breeds, but not at estimating breed composition when compared to the linear regression method.
2) Markers filtered using F-st scores are more effective at identifying Mangalitsa breed composition while not as effective at identifying other breeds.
3) If F-st-filtered markers that are effective at identifying Mangalitsa from other breeds are being used to estimate breed composition for individuals of other breeds, a greater number of markers is needed.
Article
Agriculture, Dairy & Animal Science
Vinicius Eduardo Moreira, Renata Veroneze, Alipio dos Reis Teixeira, Lorena Duarte Campos, Lais Fernanda Lopes Lino, Gabryele Almeida Santos, Bruno Alexander Nunes Silva, Paulo Henrique Reis Furtado Campos
Summary: The study found that compared to commercial pigs, Piau crossbred pigs exhibited greater tolerance to heat stress, but had lower growth rates and feed efficiency.
Article
Biochemistry & Molecular Biology
Ibrahim Saygili, Nejdet Kandemir, Ahmet Kinay, Selim Aytac, Ali Kemal Ayan
Summary: This study analyzed the genetic diversity of tobacco genotypes from different regions in Turkey using DNA markers, and found a high level of genetic diversity among Turkish tobaccos, including specific varieties and locally adaptive genotypes.
MOLECULAR BIOLOGY REPORTS
(2022)
Article
Genetics & Heredity
Sowah Addo, Lisa Jung
Summary: This study investigated the genetic diversity and selection signatures in Blond, Swallow-bellied, and Red Mangalitsa pigs. The results showed differences between the breeds, with the closest relatedness found between Red and Blond Mangalitsa pigs. Some runs of homozygosity islands were associated with genes related to synaptic signaling and meat quality traits in Swallow-bellied and Red Mangalitsa pigs respectively.
FRONTIERS IN GENETICS
(2022)
Article
Agriculture, Dairy & Animal Science
Jose Carlos Montes-Vergara, Jurandy Mauro Penitente-Filho, Mariana Machado-Neves, Lucas Correa Martins Machado, Faider Alberto Castano-Villadiego, Karine Assis Costa, Eduardo Paulino da Costa, Carolina Filardi de Campos, Camilo Jose Ramirez-Lopez, Simone Eliza Facioni Guimaraes, Paulo Savio Lopes, Jose Domingos Guimaraes
Summary: This study investigated the transcript abundance of angiogenesis-related genes in the endometrium of pregnant commercial line and Piau gilts and their relationship with the phenotypic expression of genes important to the endometrium during early pregnancy. The results showed differences in gene expression among gestational ages and between breeds, suggesting an influence of the male genotype on uterine vascularization. The findings provide important insights into the reproductive development of different pig breeds and contribute to the knowledge of pig farming.
Article
Agriculture, Dairy & Animal Science
Margareth Evangelista Botelho, Marcos Soares Lopes, Pramod K. Mathur, Egbert F. Knol, Fabyano Fonseca e Silva, Paulo Savio Lopes, Simone Eliza Facioni Gimara, Daniele B. D. Marques, Renata Veroneze
Summary: Weighted single-step genome-wide association study (WssGWAS) and post-GWAS analysis can be used to identify quantitative trait loci (QTL) and candidate genes linked to boar taint in pigs. In this study, a total of 16 windows on different chromosomes were identified as associated with boar taint compounds, explaining a small percentage of the genetic variance. A total of 128 candidate genes, including five new ones, were also identified in significant QTL regions. The findings provide insights into the occurrence of boar taint and potential targets for selection against it.
Review
Agriculture, Dairy & Animal Science
Cassiane Gomes dos Santos, Mariele Freitas Sousa, Joao Inacio Gomes Vieira, Luana Rafaela de Morais, Aline Auxiliadora Silva Fernandes, Thayssa de Oliveira Littiere, Pamela Itajara Otto, Marco Antonio Machado, Marcos Vinicius Gualberto Barbosa Silva, Cristina Moreira Bonafe, Ana Fabricia Braga Magalhaes, Lucas Lima Verardo
Summary: This study reviewed the genome-wide association studies for tick resistance in cattle and identified candidate genes and enriched biological processes associated with immune system function. Transcription factor network analysis also revealed candidate genes associated with tick resistance. These findings provide potential candidate genes for further analysis.
JOURNAL OF APPLIED ANIMAL RESEARCH
(2022)
Article
Reproductive Biology
Tania Fernandes Martins, Ana Fabricia Braga Magalhaes, Lucas Lima Verardo, Geovana Cristina Santos, Aline Auxiliadora Silva Fernandes, Joao Inacio Gomes Vieira, Natalia Irano, Danielly Beraldo dos Santos
Summary: The study aims to identify candidate genes associated with reproductive traits in pigs and build gene networks to highlight the most promising genes. A systematic review was conducted using GWAS and sequencing data, resulting in the identification of 2077 candidate genes from 14 peer-reviewed articles. The most candidate genes and transcription factors related to litter size and the number of teats were prioritized.
Article
Agriculture, Dairy & Animal Science
Eula Regina Carrara, Maria Gabriela Campolina Diniz Peixoto, Alessandra Alves da Silva, Frank Angelo Tomita Bruneli, Henrique Torres Ventura, Lenira El Faro Zadra, Luiz Antonio Josahkian, Renata Veroneze, Paulo Savio Lopes
Summary: This study aimed to explore the feasibility of using single-step genomic best linear unbiased prediction (ssGBLUP) for genomic prediction of productive and reproductive traits in Guzera cattle. The results showed that ssGBLUP was feasible and could increase the accuracy of breeding values without significantly impacting predictive ability and bias. Although the number of genotyped animals and the size of the database were small for some traits, the individual accuracies of breeding values were evidently increased in the genomic evaluation.
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2023)
Article
Agriculture, Dairy & Animal Science
Leticia Fernanda de Oliveira, Paulo Savio Lopes, Layla Cristien Cassia Miranda Dias, Leandro Magno Dornelas e Silva, Hugo Teixeira Silva, Simone Eliza Facioni Guimaraes, Daniele Botelho Diniz Marques, Delvan Alves da Silva, Renata Veroneze
Summary: This study estimated genetic parameters, effective population size, inbreeding, and inbreeding depression in Piau pigs. The results showed low direct heritabilities for birth weight and weaning weight, while average pre-weaning daily weight gain showed moderate heritability. There were high genetic correlations between weight at birth and weight at weaning, as well as weight at weaning and average pre-weaning daily weight gain. Inbreeding increased over generations and led to a reduction in effective population size. Inbreeding had a significant effect on average pre-weaning daily weight gain, with a decrease of 0.005 g for every 1% increase in inbreeding coefficient. Increasing effective population size is necessary to control inbreeding and preserve genetic variability in the Piau pig population.
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2023)
Article
Genetics & Heredity
Camila Souza Rodrigues, Danielle Assis de Faria, Thaisa Sant'Anna Lacerda, Samuel Rezende Paiva, Alexandre Rodrigues Caetano, Harvey Blackburn, Concepta McManus
Summary: We estimated the haplotype frequencies of TMEM154 in the US and Brazil Gene Banks using Fluidigm and KASP genotyping methods, and genotyped the ZNF389_ss748775100 deletion variant in Brazilian flocks. The results showed that all Brazilian samples had the I/I genotype for the ZNF389_ss748775100 mutation. There were 25 TMEM154 haplotypes in Brazilian breeds and 4 haplotypes in US breeds associated with susceptibility. This suggests that genetic testing can help improve herd health and productivity by selecting non-susceptible animals as founders.
Article
Biophysics
Eula Regina Carrara, Paulo Savio Lopes, Aricia Chaves Zanetti Reis, Jessica Xavier Silva, Layla Cristien de Cassia Miranda Dias, Erica Beatriz Schultz, Daniele Botelho Diniz Marques, Delvan Alves da Silva, Renata Veroneze, Ricardo Guimaraes Andrade, Maria Gabriela Campolina Diniz Peixoto
Summary: Heat stress has negative effects on livestock production and reproduction. The study compared THI estimates from INMET weather stations and NASA POWER meteorological information sources, finding that NASA POWER satellite-based weather system is a suitable tool for obtaining accurate average and maximum THI values in Brazil, providing additional data for analyzing the impact of heat stress on livestock production.
INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
(2023)
Article
Biochemistry & Molecular Biology
Renata de Fatima Bretanha Rocha, Arielly Oliveira Garcia, Pamela Itajara Otto, Marcos Vinicius Barbosa da Silva, Marta Fonseca Martins, Marco Antonio Machado, Joao Claudio do Carmo Panetto, Simone Eliza Facioni Guimaraes
Summary: The study aimed to verify the impact of ROH and inbreeding depression on total oocytes and embryos in Gir Indicine cattle, and to identify genes and enriched regions related to these traits. Generally, an increase in ROH was found to decrease the number of total oocytes and viable embryos. Additionally, multiple genes and genomic regions were identified as being associated with different breeding values for these traits.
Editorial Material
Genetics & Heredity
Lucas Lima Verardo, Luiz F. Brito, Nuno Carolino, Ana Fabricia Braga Magalhaes
FRONTIERS IN GENETICS
(2023)
Article
Biochemistry & Molecular Biology
Renata de Fatima Bretanha Rocha, Arielly Oliveira Garcia, Pamela Itajara Otto, Mateus Guimaraes dos Santos, Marcos Vinicius Barbosa da Silva, Marta Fonseca Martins, Marco Antonio Machado, Joao Claudio do Carmo Panetto, Simone Eliza Facioni Guimaraes
Summary: This study used GWAS to identify genomic regions, genes, and biological processes associated with the number of embryos and oocytes in Gir dairy cattle. Several protein-coding genes were found to be related to embryo development and cell functions.
Article
Food Science & Technology
M. M. Santos, T. C. Costa, W. Silva, L. Z. Pistillo, D. T. Valente Junior, L. L. Verardo Jr, P. V. R. Paulino, C. B. Sampaio, M. P. Gionbelli, M. Du, M. S. Duarte
Summary: This study aimed to evaluate the impact of pre-weaning nutrient supplementation on adipogenic determination in beef female calves. The results showed that early nutritional supplementation can enhance fat and muscle development and promote the conversion of adipogenic progenitor cells into adipocytes.
Article
Agriculture, Dairy & Animal Science
E. R. Carrara, P. S. Lopes, R. Veroneze, R. J. Pereira, L. E. F. Zadra, M. G. C. D. Peixoto
Summary: This study quantified runs of homozygosity (ROH) and heterozygosity-rich regions (HRR) in a subpopulation of Guzer & aacute; cattle and examined ROH and HRR islands. The results showed that the inbreeding coefficients determined by ROH were higher than other cattle breeds' and higher than pedigree-based inbreeding in the Guzer & aacute; breed obtained in previous studies. Additionally, genes identified in ROH and HRR islands were associated with dairy and beef traits, reproductive traits, and disease resistance.
JOURNAL OF ANIMAL BREEDING AND GENETICS
(2023)
Article
Agriculture, Dairy & Animal Science
Margareth Evangelista Botelho, Marcos Soares Lopes, Pramod K. Mathur, Egbert F. Knol, Daniele B. D. Marques, Paulo Savio Lopes, Fabyano Fonseca e Silva, Simone Eliza Facioni Guimaraes, Renata Veroneze
Summary: This study aimed to investigate the causal relationship and causal effects among boar taint compounds measured in pig adipose tissue from carcasses and biopsies. The results showed that boar taint compounds measured in biopsies have direct effects on the compounds measured in carcasses.
ANIMAL PRODUCTION SCIENCE
(2023)
Article
Agriculture, Dairy & Animal Science
Renata de Fatima Bretanha Rocha, Pamela Itajara Otto, Marcos Vinicius Gualberto Barbosa da Silva, Marta Fonseca Martins, Marco Antonio Machado, Renata Veroneze, Felipe Damasceno Leandro, Stela Naetzold Pereira, Simone Eliza Facioni Guimaraes, Joao Claudio do Carmo Panetto
Summary: Genetic parameters for oocyte and embryo production in Gir breed were obtained through repeatability and random regression models. The study revealed significant genetic variability and repeatability in the production of oocytes and embryos from Gir donors, suggesting that selection of appropriate donors could lead to greater fertility and genetic progress, particularly at younger ages.
ANIMAL PRODUCTION SCIENCE
(2022)
