4 documents found, page 1 of 1
Zircon U-Pb and Lu-Hf isotopes reveal the crustal evolution of the SW Angolan S...
Ferreira, Ezequiel; Lehmann, Jeremie; Rodrigues, José Feliciano; Hayes, Ben; Merino-Martinez, Enrique; Milani, Lorenzo; Bybee, Grant M.ABSTRACT: The crustal evolution of the Angolan Shield (AS) remains poorly constrained. To address this, we analysed U-Pb and Lu-Hf isotopes in detrital and igneous zircons to investigate the age and provenance of extensive sedimentary strata in southwestern Angola and use it as a proxy to gain insight into the Archean to Mesoproterozoic evolution of the region. Mesoproterozoic maximum depositional ages for the ...
Variants at the ASIP locus contribute to coat color darkening in Nellore cattle
Trigo, Beatriz B. [UNESP]; Utsunomiya, Adam T. H.; Fortunato, Alvaro A. A. D. [UNESP]; Milanesi, Marco [UNESP]; Torrecilha, Rafaela B. P.Made available in DSpace on 2021-06-25T10:58:52Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-12-01; Meat and Livestock Australia; Background: Nellore cattle (Bos indicus) are well-known for their adaptation to warm and humid environments. Hair length and coat color may impact heat tolerance. The Nellore breed has been strongly selected for white coat, but bulls generally exhibit darker hair ranging fr...
X chromosome variants are associated with male fertility traits in two bovine p...
Fortes, Marina R S; Porto-Neto, Laercio R.; Satake, Nana; Nguyen, Loan T.; Freitas, Ana Claudia [UNESP]; Melo, Thaise P. [UNESP]Made available in DSpace on 2020-12-12T01:35:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-08-12; BACKGROUND: Twenty-five phenotypes were measured as indicators of bull fertility (1099 Brahman and 1719 Tropical Composite bulls). Measurements included sperm morphology, scrotal circumference, and sperm chromatin phenotypes such as DNA fragmentation and protamine deficiency. We estimated the heritabili...
Benchmarking Bayesian genome enabled-prediction models for age at first calving...
Mota, Rodrigo Reis; Silva, Fabyano Fonseca e; Guimarães, Simone Eliza Facioni; Hayes, Ben; Fortes, Marina Rufino Salinas; Kelly, Matthew JohnCow fertility traits are key factors that influence beef production profitability, and is particularly important in tropical environments where achieving high reproductive rates is challenging. Genomic selection (GS) has the potential to improve genetic gain rates for reproduction, if genomic estimated breeding values (GEBV) for these traits are sufficiently accurate. Several Bayesian models have already been p...