Longevity Attributes of Bos indicus × Bos taurus Crossbred Cows

Thrift, F. A.; Thrift, Todd

doi:10.15232/s1080-7446(15)31438-8

Cited by 9 publications

(5 citation statements)

References 192 publications

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“…Cattle herders and owners selected to recruit cattle for the study provided the mating history of the herd was used to identify individual animals to be sampled. The average age of mature cattle for this study was estimated to be ve years based on the teeth detention protocols {two PPT 2 years 4 5 years, 6 used by Thrift and Thrift (2003). Based on the information from the owners and government extension o cers, a total of 162 indigenous Angoni animals were sampled for this study, namely in R1 (F = 30, M = 20), R2 (F = 36, M = 26) and R3 (F = 25, M = 25).…”

Section: Data Collectionmentioning

confidence: 99%

Physical and morphometric characteristics of the Angoni cattle in Zambia

Musimuko,

Nalubamba,

Zulu

et al. 2024

Preprint

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This study aimed to characterize the Angoni breed of cattle sampled from three provinces of Zambia to determine existing genetic variation. Information from cattle owners through group discussions and secondary data from livestock extension officers was used to sample animals for this study, while study sites were selected using livestock population distribution from the Zambia Statistics Agency. Morphometric measurements and phenotypic characteristics were measured and recorded for each animal. The age of each animal was estimated using teeth dentition. Data was analyzed using XLSTAT version 2021 and Stata software. Predominant coat colours observed were blackish, blackish and white, and reddish and white (18%, 17% and 15% respectively. The majority of cattle (87.90%) were pigmented. (71.97%) possessed erect ears with moderate development of dewlap. The average age for females and males was 5.15 ± 2.2 years and 4.9 ± 2.1 years, respectively. The morphometric measurements (cm) for Shoulder height (SH) and topline (TopL) indicated males were slightly higher than females except for horn length (HornL) ( F = 16.2 ± 8.42; M = 13.04 ± 9.43) and horn width (HornW) ( F = 36.9 ± 13.27; M = 34.01 ± 19.50 ) in which females exhibited higher values than males. Multivariate regression analysis revealed that SH and TopL significantly differed (p < 0.05) for female and male cattle. Pearson correlations matrix demonstrated that most phenotypic traits were low to moderate positive correlation significant (p < 0.05), indicating a good association between these traits. Coat colour, ear orientation and dewlap development showed large variations among Angoni populations, indicating a lack of strong selection in these traits. Significant differences were observed for most morphometric traits, suggesting differences in size between the three studied cattle populations. The three cattle populations can best be differentiated by measuring shoulder height and topline. The above could be a valuable tool in developing genetic improvement, conservation and utilization of the breed.

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Section: Data Collectionmentioning

confidence: 99%

Physical and morphometric characteristics of the Angoni cattle in Zambia

Musimuko,

Nalubamba,

Zulu

et al. 2024

Preprint

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“…Bos indicus-B. taurus crossbred cows have been reported to have increased reproductive longevity (Riley et al, 2001;Thrift and Thrift, 2003). Bos indicus-B.…”

Section: Figurementioning

confidence: 99%

“…Bos indicus-B. taurus cows are more likely to survive culling due to decreased rates of dystocia and decreased tooth loss at advanced ages (Riley et al, 2001;Thrift and Thrift, 2003). Furthermore, Nellore-sired cows have been shown to maintain udder integrity and to have increased survivability and overall lifetime productivity than other B. indicus-or B. taurus-sired females (Riley et al, 2001).…”

Section: Figurementioning

confidence: 99%

“…Bos indicus-Bos taurus crossbred cows are recognized as having high potential for long reproductive life spans, likely due to the combined advantages of heterosis and adaptation to the climates in which they are raised (Riley et al, 2001;Thrift and Thrift, 2003). However, B. indicus-influenced females reach puberty later than B. taurus heifers, are significantly less likely to first calve at 2 yr of age, and if successful, experience difficulty rebreeding during the subsequent breeding period (Chenoweth, 1994), decreasing their likelihood of meeting the stayability benchmark.…”

Section: Introductionmentioning

confidence: 99%

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Genome-wide association study for stayability measures in Nellore–Angus crossbred cows1

Engle

Herring

Sawyer

et al. 2018

Journal of Animal Science

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Beef cow stayability is a complex, economically important trait often used as an indicator of a cow's potential lifetime productivity. Stayability is defined as capability of a cow to maintain a perfect record up to 6 yr of age. This age is commonly cited as a financial break-even point, where initial costs of cow development and maintenance are recovered by her cumulative net income from yearly calf receipts. Later-maturing Bos indicus-Bos taurus crossbred cows may experience reproductive difficulty early in life but have a high potential for a long reproductive life span. It was the objective of this study to identify genetic variants associated with measures of beef cow stayability. A population of B. indicus-B. taurus crossbred cows (n = 305) from central Texas was used. Phenotypes for various measures of stayability to 6 yr of age were produced by artificially imposing five different culling criteria on data from the population. Cows were scored either as a 1 (indicating a perfect record through 6 yr) or a 0 (indicating failure at or before 6 yr), under each criterion. Genome-wide association studies (GWAS) were conducted for each criterion using univariate procedures and prefitting the fixed effect of cow contemporary group. SNP associations for two criteria surpassed the false discovery threshold of 0.15, when a cow was scored as 0 upon her first failure to wean a calf, regardless of reason, through 6 yr (criterion 2), and when a cow was scored as 0 upon her first failure to give birth to a calf, through 6 yr (criterion 3). Associated SNP were found on bovine chromosomes (BTA) 1, 2, 5, 9, 18, and 21 for criterion 2 and on BTA 1, 5, 11, 15, and 24 for criterion 3. A critical region on BTA 5: 43-50 Mb was identified for each criterion. Due to the similarities to prior work, the tendency for B. indicus cattle to experience reproductive difficulties early in life, and due to the large proportion of cows that left the herd at an early age under these criteria, these results suggest that the associations are likely driven by an early life trait such as age at puberty or rate of heifer development.

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“…Many researchers have reported that integrating Brahman cattle in crossbreeding programs has resulted in good performance, with the crossbreds having good growth, mothering ability and resistance to external environmental conditions (Riley et al, 2012;Mateescu et al, 2020). Utilizing the Brahman breed in crossbreeding has produced favorable results, such as hybrid vigor in reproduction, good survival, a high weaning weight, and longer lifespan compared to purebreds (Thrift and Thrift, 2003). Many countries have included Brahman cattle in crossbreeding programs with local cattle that have resulted in considerably improved performance in growth performace, carcass traits as well as adaptation to a hot climate (Waritthitham et al, 2010;Tessema et al, 2013;Kuswati et al, 2014;Papry et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Effects of Brahman genetic resource proportion on growth performance traits of beef crossbreds in Western Highlands of Vietnam

2023

ANRES

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Importance of the work:Of the many studies on beef cattle in the Western Highlands of Vietnam, none have reported on the genetic resources of the Brahman breed. Objectives: To evaluate the impact of the Brahman breed on the growth performance of beef crossbreds. Materials & Methods: During 2017-2020, data were collected from 1,069 calves in 243 households, consisting of body weight (BW) and the average daily gain (ADG) from birth to age 24 mth. The data were analyzed using the Proc GLM linear regression approach in the SAS 9.0 software, with fixed effects of location, calving year, calf sex and breed group. Results: Upgraded crossbreds with a proportion of Brahman breed genetics could be developed successfully in the Western Highlands, with the upgraded cattle having linearly increased growth and groups containing 75% or more Brahman breed producing faster growth, with ADG values from birth to age 24 mth of 527.32-561.01 g/d. Based on Local Yellow cattle, for every 1% increase in the Brahman breed in the crossbreds, the BW increased from 0.14 kg at birth to 2.43 kg at 24 mth, with an ADG increase from 1.42g/d to 4.47g/d. Based on Red Sindhi crossbreds, for every 1% increase of Brahman breed genetic resource, the BW increased from 0.17 kg at birth to 2.30 kg at 24 mth, with an ADG increase from 1.72g/d to 3.98g/d. Main finding: The Brahman breed had a positive effect on growth performance in crossbreds. The higher genetic proportion of Brahman in the crossbreds, the better the growth performance they acquired. Upgrading using the Brahman breed to improve growth performance would be an appropriate and favorable solution for the beef industry in the Western Highlands of Vietnam.

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Longevity Attributes of Bos indicus × Bos taurus Crossbred Cows

Cited by 9 publications

References 192 publications

Physical and morphometric characteristics of the Angoni cattle in Zambia

Physical and morphometric characteristics of the Angoni cattle in Zambia

Genome-wide association study for stayability measures in Nellore–Angus crossbred cows1

Effects of Brahman genetic resource proportion on growth performance traits of beef crossbreds in Western Highlands of Vietnam

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