Selection indexes to optimise genetic and economic progress in Colombian Blanco Orejinegro cattle

Amaya, Alejandro; Parra, Laura Camila López; Ramírez, Julián

doi:10.1016/j.livsci.2022.105015

Cited by 3 publications

(1 citation statement)

References 25 publications

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“…There is no unified breeding goal for dairy cattle that suitable for all populations or all herds within a single population, but there are general principles for constructing se-lection indexes (Hazel, 1943). These principles allow the development of selection indexes that meet economic (market) requirements, which depend on the characteristics of a particular country (Amaya et al, 2022;Matvieiev et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Grounding the economic selection index for evaluation and selection of dairy cattle

Ruban,

Danshyn,

Matvieiev

et al. 2023

J. Indonesian Trop. Anim. Agric.

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The aim of the research was to develop a selection index for the evaluation and selection of dairy cattle for increasing milk production and reproductive traits. Materials of the research were data on milk production and reproduction of cows of the Ukrainian Black-and-White dairy breed in commercial farm in Kharkiv region. Studies showed that there was a certain antagonism between milk productivity and reproduction of the Ukrainian Black-and-White dairy cow. The coefficients of phenotypic correlation between milk yield, fat and protein yield and the days open ranged from +0.284 to +0.293. Selection indexes were built, which included protein, fat yield, and days open. The developed selection indexes were characterized by a high relationship with the protein yield (α<0.001), much lower – with the fat yield (α<0.05), while the relationship of the selection indexes with the days open was almost absent. The calculated estimates of correlation and regression coefficients made possible to predict correlated responses of milk production and reproduction traits on selection index. The results showed that the developed selection indexes allow increase the milk production of cows and at the same time to prevent decrease in the level of reproduction.

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Section: Introductionmentioning

confidence: 99%

Grounding the economic selection index for evaluation and selection of dairy cattle

Ruban,

Danshyn,

Matvieiev

et al. 2023

J. Indonesian Trop. Anim. Agric.

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Economic utility of Colombian Romosinuano cattle

Moncaleano-Vega,

Amaya,

Martínez

et al. 2024

Trop Anim Health Prod

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The objective of this study was to quantify the economic utility in Romosinuano production systems by developing a bioeconomic model assumed cow-calf, cow-calf plus stocker (CCPS), and complete cycle operations. Each system produced males for sale and females for replacement. Input parameters were established from breed data collected by AGROSAVIA. Revenues were estimated using the official cattle price, and production costs were quantified per activity. In the results, for cow-calf operations, the maximum economic utility was 244.12 USD. CCPS, yielded 231.86 USD, and Complete cycle, 268.94 USD. The genetic progress per generation for W240, W480, W24 and CI was + 3.8 kg, + 5 kg, + 5.9 kg, and -1 d, respectively. The price of livestock was the sensitized variable with the greatest impact on maximum economic utility (± 118.64 USD to ± 155.44 USD), followed by mineral supplementation (16.31 USD to ± 37.34 USD). The sensitized variables with the lowest impact were food (± 1.62 USD to ± 1.8 USD) and health plan supplies (± 6.03 USD to ± 9.13 USD). It is concluded that economic utility defined as a composite trait influenced by the characteristics that shape it favors genetic progress and the identification of animals with optimal performance in different bovine production systems.

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Genetic improvement in Colombian cattle, a reality or an intention? A review

Amaya,

Cotes-Torres

2025

Rev. colomb. cienc. pecu.

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Background: Genetic improvement programs in domestic species require a set of steps involving the definition of breeding objectives, information systems, variance component estimation, genetic evaluations, selection indexes, and the estimation of genetic progress and variability. Objective: To identify strengths and weaknesses in the design and implementation of genetic improvement programs in Colombian cattle through scientific and academic contributions derived from research. Conclusion: The greatest challenges in the design and implementation of genetic improvement programs in Colombian cattle are currently related to the absence of consensus breeding objectives among farmers and associations. Additionally, there is a need in the short term to improve both the quality and quantity of information available in databases. Finally, conducting economic analyses that consider genetic parameters is essential for optimizing the response to genetic selection, considering the different productive systems and environmental conditions that Colombia offers.

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Selection indexes to optimise genetic and economic progress in Colombian Blanco Orejinegro cattle

Cited by 3 publications

References 25 publications

Grounding the economic selection index for evaluation and selection of dairy cattle

Grounding the economic selection index for evaluation and selection of dairy cattle

Economic utility of Colombian Romosinuano cattle

Genetic improvement in Colombian cattle, a reality or an intention? A review

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