
Martin BonamyNational University of La Plata | UNLP · Departamento de Producción Animal
Martin Bonamy
Doctor of Veterinary Medicine
About
15
Publications
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Introduction
Martin Bonamy currently works at the Departamento de Producción Animal, National University of La Plata. Martin does research in Animal Science.
Skills and Expertise
Publications
Publications (15)
The common cattle tick Rhipicephalus microplus causes severe limitations to livestock production. Bovine genetics could be a decisive component for the success or failure of control programs for ticks and diseases transmitted. The objective of this work was to detect chromosomal regions associated with host resistance to R. microplus through an ass...
The common cattle tick Rhipicephalus (Boophilus) microplus causes severe limitations to livestock production. Bovine genetics could be a decisive component for the success or failure of control programs for ticks and diseases transmitted. The objective of this work was to detect chromosomal regions associated with host resistance to R. (B.) micropl...
Multiple trait animal models (MTM) allow to estimate the breeding values (BV) of several traits simultaneously while accounting for genetic and environmental correlations among them. However, relationships among traits may not be reciprocal but rather causal in nature. In these cases, and given a causal network, structural equations models (SEM) ar...
The objective of this work was to characterize the Argentine Creole cattle breed through the identification of individual phenotypic variations in the levels of infestation with Rhipicephalus (Boophilus) microplus. We evaluated 179 heifers exposed to successive artificial infestations from 2015 to 2018, achieving a total of 663 observations. Tick c...
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...
Over 65% of the world's cattle population resides in warm areas where heat stress conditions limit the breed of European taurine cattle. Composite breeds were developed to retain the main traits of both parental breeds. The skin plays a central role in animal response to heat stress. Research on the genetic architecture of skin traits has identifie...
La carne de cordero Patagónico es valorada por su
calidad sensorial y perfil de ácidos grasos. En estas
producciones, la terminación a corral de corderos es cada
vez más frecuente por la habitual escasez de forraje. Por
otro lado, la incorporación de aditivos, y en particular de
antioxidantes, ha demostrado tener efectos en la producción
animal. En...
BACKGROUND
Longitudinal data analysis contributes to detect differences in the growing curve by exploiting all the information involved in repeated measurements, allowing to distinguish changes over time within individuals, from differences in the baseline levels among groups. In this research, longitudinal and cross‐sectional analysis were compare...
The aim of this study was to estimate genetic parameters for different precocious calving criteria and their relationship with reproductive, growth, carcass and feed efficiency in Nellore cattle using the single‐step genomic BLUP. The reproductive traits used were probability of precocious calving (PPC) at 24 (PPC24), 26 (PPC26), 28 (PPC28) and 30...
In cow-calf operations the moment the heifer achieves her first pregnancy set up her future productivity. Although puberty itself is a yes-or-no condition, time to the event has a quantitative genetic basis and thus is suitable for genetic selection. However, the trait is difficult to measure directly and proxies such as age at first calving (AFC),...
This study was carried out to estimate the heritability and genetic correlations between adjusted weights at 210 (W210) and 450 (W450) days of age, scrotal circumference adjusted at 365 (SC365) and 450 (SC450) days of age, age at first calving (AFC), probability of precocious calving (PPC), stayability (STAY), ribeye area (REA), subcutaneous backfa...
Calving at 24 months improve profitability pf cow calf production systems. For this purpose, heifers must be puberal before breeding season. Puberty attainment is conditioned by nutrition and genetics, where the first enhance the effects of genetics, allowing productive potential expression. In this work an 0.5 kg/d average daily gain rearing was e...
The objectives of this study were to determine the onset of puberty in yearling Angus bulls on pasture and to compare the use of scrotal perimeter and spermiogram to determine the onset of puberty under commercial conditions. A total of 286 yearling has puberty (scrotal circumference 27.9 ±0.2 cm; sperm concentration 50 x 106/mL, 10% motile). For o...