Genetic Characterization of Indubrasil Cattle Breed Population

Zanella, Ricardo; Lago, Luisa Vitória; Silva, Arthur N. Da; Pértille, Fábio; Carvalho, Nathã Silva de; Panetto, J. C. do C.; Zanella, Giovana Ciacci; Facioli, Fernanda Luiza; Silva, Marcos Vinícius Gualberto Barbosa da

doi:10.3390/vetsci5040098

Cited by 6 publications

(3 citation statements)

References 27 publications

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“…For genetic improvement in cattle, artificial insemination (AI) is the preferred method used by breeders, due to the possibility to use semen from genetically superior animals [ 16 ]. The most advanced reproductive biotechnologies, such as superovulation, embryo transfer and in vitro fertilization techniques [ 17 ], together with the use of sexed semen [ 18 ], are being extensively used to increase the Wagyu population while limiting the amount of inbreeding [ 13 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

The Outcome and Economic Viability of Embryo Production Using IVF and SOV Techniques in the Wagyu Breed of Cattle

Facioli

Marchi

Marques

et al. 2020

Veterinary Sciences

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The Japanese black cattle breed (Wagyu) has an improved metabolism, which allows them to have a higher marbling score when compared with other cattle breeds. However, this may affect other aspects of the animal’s physiology, including hormone secretion and their reproductive success, such as their response to synchronization protocols and embryo production. Therefore, the objectives of this study were to test a superovulation protocol (SOV) developed with low doses of FSH and to evaluate the outcome and economic viability of embryo production using the SOV and in vitro fertilization (IVF) approaches in the Wagyu cattle breed. For that, ten Wagyu cows were submitted to five SOVs over a period of 15 months using a standard protocol: CIDR + 3 mg estradiol benzoate (D0), 35 mg FSH (Folltropin®) a.m. and p.m. (D4), 35 mg Folltropin® a.m. and 20 mg p.m. (D5), 20 mg Folltropin® a.m. and 10 mg p.m. (D6), 10 mg Folltropin® and 0.5 mg cloprostenol, both a.m. and p.m., + CIDR removal (D7), 0.05 mg GnRH + insemination 12 and 24 h after (D8) and embryo collection + 0.5 mg of cloprostenol (D16). Thirty days after each SOV, a follicular aspiration was conducted to produce IVF embryos without any pre-synchronization using standard semen in the same group of animals. The average number of embryos produced was 7.63 ± 5.61 (SOV) and 4.52 ± 2.44 (IVF) (p = 0.303). There was no significant correlation between the number of embryos produced by the different techniques (SOV and IVF), indicating that cows that respond well to SOV did not respond well to IVF and vice versa (r = 0.379, p = 0.529). The total cost of each embryo produced by SOV was R$215.00 and R$410.00 for IVF. Therefore, cows that produce less than five embryos by SOV are not economically viable due their lack of response to FSH, and the use of IVF in those animals may be more effective.

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Section: Introductionmentioning

confidence: 99%

The Outcome and Economic Viability of Embryo Production Using IVF and SOV Techniques in the Wagyu Breed of Cattle

Facioli

Marchi

Marques

et al. 2020

Veterinary Sciences

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“…In BTA19, UBE2G1 gene was reported as involved in muscle development in Nellore (dos Santos Silva et al, 2020), while in BTA4, QTLs for carcass weight harbouring TFPI2 , GNGT1 and CALCR genes, among others, were reported by Srikanth et al (2020). When the pairwise Brangus–Brahman was analysed, several genes in BTA6 associated with growth and skeletal type traits in cattle breeds were found, including ABCG2 , ADGRA3 , DCAF16 , SLIT2 , NCAPG , LCORL , DCAF16 , FAM184B , PPARGC1A , GRID2 , PI4K2B , SOD3 , CCDC149 , GBA3 , DHX15 and ZCCHC4 (Doyle et al, 2020a, 2020b; Kowalewska‐Łuczak et al, 2010; Li et al, 2014; Lindholm‐Perry et al, 2011; Maiorano et al, 2018; Martínez et al, 2014; Paim et al, 2020a; Sorbolini et al, 2015; Takasuga, 2016; Xia et al, 2017; Zanella et al, 2018). Genes XKR4 , LYPLA1 and TMEM68 located within the candidate region detected on BTA14 were recently reported to play a role in growth phenotypes in Brangus (Paim et al, 2020a), as well as feed intake and average daily gain phenotypes in cross‐bred steers (Lindholm‐Perry et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

Genome‐wide scan for signatures of selection in the Brangus cattle genome

Cecco

Rogberg-Muñoz

Balbi

et al. 2022

J Animal Breeding Genetics

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Brangus is a composite cattle breed developed with the objective of combining the advantages of Angus and Zebuine breeds (Brahman, mainly) in tropical climates.The aim of this work was to estimate breed composition both genome-wide and locally, at the chromosome level, and to uncover genomic regions evidencing positive selection in the Argentinean Brangus population/nucleus. To do so, we analysed marker data from 478 animals, including Brangus, Angus and Brahman.Average breed composition was 35.0% ± 9.6% of Brahman, lower than expected according to the theoretical fractions deduced by the usual cross-breeding practice in this breed. Local ancestry analysis evidenced that breed composition varies between chromosomes, ranging from 19.6% for BTA26 to 56.1% for BTA5. Using approaches based on allelic frequencies and linkage disequilibrium, genomic regions with putative selection signatures were identified in several chromosomes (BTA1, BTA5, BTA6 and BTA14). These regions harbour genes involved in horn development, growth, lipid metabolism, reproduction and immune response. We argue that the overlapping of a chromosome segment originated in one of the parental breeds and over-represented in the sample with the location of a signature of selection constitutes evidence of a selection process that has occurred in the breed since its take off in the 1950s. In this regard, our results could contribute to the understanding of the genetic mechanisms involved in cross-bred cattle adaptation and productivity in tropical environments.

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“…On the other hand, these analyses would also provide a better knowledge of the history of the populations making possible to detect different events from the past that could have affected them, such as the identification of founders' population or the identification of bottlenecks [29]. Certainly for these purposes, information provided by modern genomic methods is quite better than information provided by pedigree analyses [30][31][32]. Genomic data would allow for a more accurate assessment addressed to determine different parameters about the structure of the population, such as the Effective population size or the Inbreeding rate [26,27,33], with the added advantage that when using genomic parameters, we would be describing the realized genetic variation and not the expected one.…”

Section: Introductionmentioning

confidence: 99%

Analyses of Genetic Diversity in the Endangered “Berrenda” Spanish Cattle Breeds Using Pedigree Data

González-Cano

González

Muñoz-Mejías

et al. 2022

Animals

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Pedigree analyses of two endangered cattle breeds were performed in order to study the structure and the genetic variability in their populations. Pedigree data were analyzed from 12,057 individuals belonging to the “Berrenda en Negro” cattle breed (BN) and 20,389 individuals belonging to the “Berrenda en Colorado” cattle breed (BC) that were born between 1983 and 2020. BN and BC reference populations (RP) were set up by 2300 and 3988 animals, respectively. The generation interval in BN and BC reference populations was equal to 6.50 and 6.92 years, respectively. The pedigree completeness level was 82.76% in BN and 79.57% in BC. The inbreeding rates were 4.5% in BN and 3.4% in BC, respectively. The relationship among animals when they were born in different herds was 1.8% in BN and 5% in BC; these values increased to 8.5% and 7.7%, respectively when comparing animals that were born in the same herd. The effective number of founding herds was 23.9 in BN and 60.9 in BC. Number of ancestors needed to explain 50% of genes pool in the whole population was 50 and 101, in BN and in BC, respectively. The effective population size based on co-ancestries was 92.28 in BN and 169.92 in BC. The genetic variability has been maintained in both populations over time and the results of this study suggest that measures to promote the conservation of the genetic variability in these two breeds would go through for the exchange of breeding animals among farms and for monitoring the genetic contributions before implementing any selective action.

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Genetic Characterization of Indubrasil Cattle Breed Population

Cited by 6 publications

References 27 publications

The Outcome and Economic Viability of Embryo Production Using IVF and SOV Techniques in the Wagyu Breed of Cattle

The Outcome and Economic Viability of Embryo Production Using IVF and SOV Techniques in the Wagyu Breed of Cattle

Genome‐wide scan for signatures of selection in the Brangus cattle genome

Analyses of Genetic Diversity in the Endangered “Berrenda” Spanish Cattle Breeds Using Pedigree Data

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