Forage use in domestic cattle (Bos indicus), capybara (Hydrochoerus hydrochaeris) and pampas deer (Ozotoceros bezoarticus) in a seasonal Neotropical wetland

2011 ◽  
Vol 76 (3) ◽  
pp. 351-357 ◽  
Author(s):  
Arnaud Léonard Jean Desbiez ◽  
Sandra Aparecida Santos ◽  
Juliana Magalhães Alvarez ◽  
Walfrido Moraes Tomas
2021 ◽  
Vol 25 (1) ◽  
pp. 101-125
Author(s):  
Juan M. Rodríguez ◽  
Mariano Bonomo

El sitio arqueológico Cerro Tapera Vázquez (CTV) se encuentra dentro del Parque Nacional Pre-Delta, en el ambiente insular del río Paraná. Dos dataciones radiocarbónicas sobre restos de carbón vegetal ubican la ocupación humana en torno a los 600 años radiocarbónicos AP. En este artículo se presentan nuevos resultados obtenidos a partir del reanálisis del conjunto faunístico de este sitio arqueológico. Se identificaron diferentes especies de mamíferos, las cuales incluyen cérvidos (Blastocerus dichotomus, Ozotoceros bezoarticus), carnívoros (Leopardus geoffroyi, Lycalopex gymnocercus) y roedores (Myocastor coypus, Cavia aperea, Hydrochoerus hydrochaeris). Además, en menor medida, se identificaron algunos restos de aves (Podiceps major), peces (Pimelodus sp., Doradidae) y moluscos de agua dulce. La principal presa explotada fue el coipo (Myocastor coypus). Por otra parte, la presencia de otros recursos acuáticos y terrestres probablemente se deba a la caza ocasional (e.g. Leopardus geoffroyi) o a su incorporación natural al depósito (e.g. Cavia aperea).


2019 ◽  
Vol 12 (3) ◽  
pp. 117-122
Author(s):  
Derek Rosenfield ◽  
Mario Ferraro ◽  
Priscila Yanai ◽  
Claudia Igayara ◽  
Cristiane Pizzutto

BMC Genomics ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Cuili Pan ◽  
Zhaoxiong Lei ◽  
Shuzhe Wang ◽  
Xingping Wang ◽  
Dawei Wei ◽  
...  

Abstract Background Cyclin-dependent kinases (CDKs) are protein kinases regulating important cellular processes such as cell cycle and transcription. Many CDK genes also play a critical role during adipogenic differentiation, but the role of CDK gene family in regulating bovine adipocyte differentiation has not been studied. Therefore, the present study aims to characterize the CDK gene family in bovine and study their expression pattern during adipocyte differentiation. Results We performed a genome-wide analysis and identified a number of CDK genes in several bovine species. The CDK genes were classified into 8 subfamilies through phylogenetic analysis. We found that 25 bovine CDK genes were distributed in 16 different chromosomes. Collinearity analysis revealed that the CDK gene family in Bos taurus is homologous with Bos indicus, Hybrid-Bos taurus, Hybrid Bos indicus, Bos grunniens and Bubalus bubalis. Several CDK genes had higher expression levels in preadipocytes than in differentiated adipocytes, as shown by RNA-seq analysis and qPCR, suggesting a role in the growth of emerging lipid droplets. Conclusion In this research, 185 CDK genes were identified and grouped into eight distinct clades in Bovidae, showing extensively homology. Global expression analysis of different bovine tissues and specific expression analysis during adipocytes differentiation revealed CDK4, CDK7, CDK8, CDK9 and CDK14 may be involved in bovine adipocyte differentiation. The results provide a basis for further study to determine the roles of CDK gene family in regulating adipocyte differentiation, which is beneficial for beef quality improvement.


Author(s):  
Maurine C. Makau ◽  
Jessica Powell ◽  
James Prendergast ◽  
Perle Latré de Laté ◽  
Liam J. Morrison ◽  
...  
Keyword(s):  
T Cell ◽  

2021 ◽  
pp. 102998
Author(s):  
Bianca Vilela Pires ◽  
Nedenia Bonvino Stafuzza ◽  
Luara Afonso de Freitas ◽  
Maria Eugênia Zerlotti Mercadante ◽  
Ester Silveira Ramos ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jessica Moraes Malheiros ◽  
Banny Silva Barbosa Correia ◽  
Caroline Ceribeli ◽  
Daniel Rodrigues Cardoso ◽  
Luiz Alberto Colnago ◽  
...  

AbstractWe conducted a study to identify the fecal metabolite profile and its proximity to the ruminal metabolism of Nelore steers based on an untargeted metabolomic approach. Twenty-six Nelore were feedlot with same diet during 105 d. Feces and rumen fluid were collected before and at slaughter, respectively. The metabolomics analysis indicated 49 common polar metabolites in the rumen and feces. Acetate, propionate, and butyrate were the most abundant polar metabolites in both bio-samples. The rumen presented significantly higher concentrations of the polar compounds when compared to feces (P < 0.05); even though, fecal metabolites presented an accentuated representability of the ruminal fluid metabolites. All fatty acids present in the ruminal fluid were also observed in the feces, except for C20:2n6 and C20:4n6. The identified metabolites offer information on the main metabolic pathways (higher impact factor and P < 0.05), as synthesis and degradation of ketone bodies; the alanine, aspartate and glutamate metabolisms, the glycine, serine; and threonine metabolism and the pyruvate metabolism. The findings reported herein on the close relationship between the ruminal fluid and feces metabolic profiles may offer new metabolic information, in addition to facilitating the sampling for metabolism investigation in animal production and health routines.


2020 ◽  
Vol 98 (Supplement_2) ◽  
pp. 59-59
Author(s):  
Elizabeth Palmer ◽  
Marcelo Vedovatto ◽  
Juliana Ranches ◽  
Vinicius Gouvea ◽  
Rhaiza Oliveira ◽  
...  

Abstract This study evaluated the growth, immunity, and carcass characteristics of beef steers born to cows offered dried distillers grains (DDG) at different timing during late gestation. Approximately 84 d before calving (d 0), 84 mature Brangus cows were stratified by BW and BCS (422 ± 42 kg; 5.0 ± 0.14) and allocated into 1 of 6 bahiagrass pastures (14 cows/pasture). Treatments were randomly assigned to pastures: 1) no prepartum supplementation (CON); 2) 1 kg/d DDG from d 0 to 84 (LATE84); or 3) 2 kg/d from d 0 to 42 (LATE42). Calves were weaned at 261 ± 23 d of age. At weaning, 38 steers were vaccinated against bovine viral diarrhea virus (BVDV-1) and parainfluenza-3 (PI-3) and transported to a feedlot facility. Steers were penned according to cow prepartum pasture distribution and fed a similar diet until slaughter (d 587). Data were analyzed as complete randomized design using MIXED procedure of SAS, pasture as the experimental unit, treatment as fixed effect, and pasture(treatment) and steer(pasture) as random effects. Steer feedlot BW, ADG, DMI, and G:F did not differ (P ≥ 0.12) among treatments. Plasma haptoglobin concentrations were greater (P ≤ 0.03) for LATE42 and LATE84 vs. CON steers 2 d after feedlot entry. Plasma cortisol and seroconversion for BVDV-1 and PI-3 did not differ (P ≥ 0.15) among treatments. The percentage of carcasses grading Choice did not differ (P = 0.13), but carcasses grading low Choice were greater (P = 0.03) for CON vs. LATE42, with LATE84 being intermediate (91, 40, and 58%, respectively). Thus, prepartum dried distillers grain supplementation to B. indicus-influenced cows did not enhance feedlot growth but had subtle positive impacts on carcass quality and innate immunity in steer progeny. In addition, timing of dried distillers grain supplementation (last 84 d vs. first 42 d of late gestation) did not impact steer post-weaning feedlot performance and carcass quality.


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