Relationship between heterosis, weight gain, and body measurements of Nellore and Charolais calves

Fernandes, Tiago A.; Cerdótes, Liliane; Vaz, Ricardo Zambarda; Restle, João; Ferreira, Otoniel Geter Lauz

doi:10.1590/s1678-3921.pab2020.v55.01821

Cited by 3 publications

(2 citation statements)

References 24 publications

(45 reference statements)

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“…The authors found no difference between the genetic groups within each mating system for the crossbred generations, except for TG at eight months of age in G2 animals, which was greater in animals with Charolais genetic. This is because Charolais animals are selected for greater muscle development, weight gain, and adult weight (Fernandes et al, 2020), and lower stress at weaning (Willians and Randle, 2017). Similar results at different ages can be explained by the earlier fat deposition in Nellore compensating for greater growth of Charolais animals, and the region of the thorax and ribs with high fat deposition.…”

Section: Effects Of Genetic Groups Within Mating Systems (Purebred and Crossbred)mentioning

confidence: 78%

“…Crossbred animals, mainly Charolais, irrespective of the generation, were similar to Charolais purebreds for FG, TG and BL at 365 days of age. The inclusion of Charolais genes favored these traits in crossbreds compared to purebred Nellore (Pacheco et al, 2010;Vaz et al, 2016), since differences in mean values for FG, TG, and BL in crossbreds were more pronounced in Nellore than in Charolais purebreds (Fernandes et al, 2020). Vaz et al (2016) evaluated the morphometrics of Charolais and Nellore calves and their first and second generation crosses up to 24 months of age.…”

Section: Effects Of Genetic Groups Within Mating Systems (Purebred and Crossbred)mentioning

confidence: 99%

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Morphometric measurements of calves of beef cattle from different genetic groups up to one year of age

Fernandes

Vaz

Restle

et al. 2022

Sci. agric. (Piracicaba, Braz.)

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Heterosis plays an important role on yield and profitability of beef production systems. This study evaluates the morphometrics of purebred Nellore (N) and Charolais (C) animals and of the second (G2) and third (G3) generations of their alternating crosses, regarding the effects of genetic group and heterosis from birth to 365 days of age. The experiment comprised 159 calves (C = 29, N = 22, G2 -3/4C 1/4N = 21, 3/4N 1/4C = 9, G3-5/8C 3/8N = 44 and 5/8N 3/8C = 34). The foreshank girth (FG), thoracic girth (TG), body length (BL), and hip height (HH) were measured after birth, and at 63, 210, and 365 days of age, and the total increases were calculated. The Charolais animals had greater FG, TG, and BL values than Nellore, while the latter had greater HH. For the offspring generations, the predominance of Charolais genes in the genotypes resulted in greater measurements for FG and TG in G2, whereas the predominance of Nellore genes resulted in higher HH values in both generations.The crossbred animals had greater values for all measurements than the purebreds, with more significant differences in FG, TG, and BL compared to Nellore purebreds and in HH compared to Charolais. Charolais animals show higher values for muscularity; while, Nellore animals are taller.Crossbred animals show greater development compared to purebreds, indicating a significant effect of heterosis.

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Section: Effects Of Genetic Groups Within Mating Systems (Purebred and Crossbred)mentioning

confidence: 78%

Section: Effects Of Genetic Groups Within Mating Systems (Purebred and Crossbred)mentioning

confidence: 99%

Morphometric measurements of calves of beef cattle from different genetic groups up to one year of age

Fernandes

Vaz

Restle

et al. 2022

Sci. agric. (Piracicaba, Braz.)

Self Cite

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Genetic group and heterosis in the behavioural evolution of steers during finishing in confinement

Araujo,

Barbosa Silveira,

Restle

et al. 2024

Livestock Science

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Systematic analysis of experimental data on productive and reproductive traits of Brazilian dairy herds compared with breeders’ association records

Marcondes

2022

Anim. Prod. Sci.

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Context Dairy farming in Brazil is characterised by heterogeneity in production techniques, herds and kinds of producers; nonetheless, it has expanded in recent years. The data available in the scientific literature regarding breeds used in the system are inconsistent and may not represent the current genetic, productive and reproductive profile of Brazilian herds. Aim This study was developed to understand differences between animals used in experiments and those in breed control assessments. We aimed to evaluate data of Holstein, Gyr, Guzerat, Jersey, Sindhi, Brown Swiss, Holstein × Gyr and Holstein × Guzerat cattle on the traits 305-day milk yield, fat and protein contents, lactation length, age at first calving, and calving interval by comparing research literature and national official control records. Methods National breeders’ associations (NBAs) for each breed or cross were asked to send their official control from 2019 for comparison with 15 years of published data that we retrieved from the literature. Key results Holsteins showed the closest mean for milk yield between literature and NBA data. In Holstein × Gyr crosses, increasing the proportion of Gyr genes decreased milk yield. Jersey data showed the greatest variance between the literature and NBA. For Brown Swiss milk fat, literature values were 12.7% above NBA values. Holsteins had the longest lactation (305 days), and 5/8 Holstein × Gyr the shortest (262 days). For age at first calving, Jerseys were the youngest (26.3 months) and Guzerats the oldest (45.7 months). Jersey cows showed the shortest (best) mean calving interval (12 months), and Sindhi the longest (17 months). NBA data were not available for comparison for some traits in some breeds/crosses. Conclusions Holstein was the most productive breed. Holstein × Gyr crosses, because of adaptation and management, were able to express their productive and reproductive potentials. There was variance between literature and NBA data. Implications We expected that the literature data would somewhat represent the NBA data; however, for most traits, NBA data do not coincide (or do not exist). Literature data need to be collected to represent more closely what is happening at the field level in the national dairy industry.

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Relationship between heterosis, weight gain, and body measurements of Nellore and Charolais calves

Cited by 3 publications

References 24 publications

Morphometric measurements of calves of beef cattle from different genetic groups up to one year of age

Morphometric measurements of calves of beef cattle from different genetic groups up to one year of age

Genetic group and heterosis in the behavioural evolution of steers during finishing in confinement

Systematic analysis of experimental data on productive and reproductive traits of Brazilian dairy herds compared with breeders’ association records

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