Assessment of the variability of reproductive abilities of a black and white cattle using genealogical data and paratypical factors

Камалдинов, Е. В.; Panferova, O. D.; Efremova, Olga Viktorovna; Marenkov, V. G.; Petrov, Alexey Fedorovich; Ryumkina, I. N.

doi:10.1016/j.dib.2021.106842

Cited by 5 publications

(4 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The United States and Canada were in two different clusters, with bulls being selected for cows regardless of the country of origin [ 13 , 75 ]. It is therefore difficult to accept the partial isolation of American and Canadian populations of Holstein cattle as a reason for the divergence in different clusters.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Clustering of countries based on dairy productivity characteristics of Holstein cattle for breeding material selection

Petrov,

Bogdanova,

Narozhnykh

et al. 2024

Vet World

View full text Add to dashboard Cite

Background and Aim: The aim of any breeding process is to create a herd based on certain parameters that reflect an ideal animal vision. Targeted herding involves selecting the source of breeding material to be imported from another country. Therefore, there is a problem in selecting a breeding material importer to rapidly form a uterine canopy with the required properties. The purpose of this study was to evaluate a set of predictive milk productivity traits in Holstein cattle across countries. Materials and Methods: This research was based on records of 819,358 recorded animals from 28 countries born after January 1, 2018, from open databases. We used the Euclidean metric to construct dendrograms characterizing the similarity of countries according to the complex milk productivity traits of the daughters of bulls. The Ward method was used to minimize intracluster variance when forming clusters and constructing the corresponding diagrams. Principal component analysis was used to reduce dimensionality and eliminate the effect of multicollinearity. The principal components were selected using the Kaiser–Harris criteria. Results: A ranking of multidimensional complex milk productivity traits in different countries over the past 5 years was performed. A group of leading countries led by the USA was established according to the studied indicators, and the possible reasons for such a division into groups were described. Conclusion: The pressure of purposeful artificial selection prevails in comparison with the pressure of natural selection concerning milk productivity traits in a certain group of countries, which allows specialists to choose suppliers when buying breeding animals and materials. The findings are based solely on data from recorded animals, which may not represent the entire breed population within each country, especially in regions where record-keeping may be inconsistent. It is expected that further studies will include regional data from large enterprises not part of Interbull, with mandatory verification and validation. An important element of such work is seen as the ability to compare the milk productivity of populations from different countries using a different scale, as well as studying the differentiation of countries by other selection traits of dairy. Keywords: breeding material, cattle productivity, dairy productivity traits, Holstein cattle.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Assessing the genetic potential under specific environmental conditions is often associated with applied mathematical approaches and models [11][12][13]. Since the 1990s, mixed models and an index approach have been traditionally used for livestock breeding [14,15].…”

Section: Introductionmentioning

confidence: 99%

Clustering of countries based on dairy productivity characteristics of Holstein cattle for breeding material selection

Petrov,

Bogdanova,

Narozhnykh

et al. 2024

Vet World

View full text Add to dashboard Cite

show abstract

“…The intensive selection for milk yield in the Holstein breed reduces its longevity traits, increases the replacement costs, and increases its sensitivity to climate change and harsh environment compared to local breeds that characterized by their high adaptation to extreme conditions (Dallago et al, 2021). Previous studies had been showed that longevity and productive lifetime traits are complex traits that affected by several factors such as age at first calving (Nilforooshan and Edriss, 2004), health (Shabalina et al, 2020), conformation score (Miglior et al, 2017), nutrition and management practices (Fuerst-Waltl et al, 2018), and replacement heifers costs (Kamaldinov et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

comparative study between Shami and Holstein cows for longevity and productive lifetime traits under subtropical conditions

Almasri,

Abou-Bakr,

Ibrahim

et al. 2023

J. Indonesian Trop. Anim. Agric.

View full text Add to dashboard Cite

This study aimed to compare the longevity and productive lifetime traits between Shami and Hol-stein cows under subtropical conditions, in addition to assess the effect of age at first calving (AFC), first lactation milk yield (FLMY), year and season of first calving on the studied traits in both breeds. The available data included 495 records for Shami and 1129 records for Holstein from birth to disposal date during the period from 1982 to 2014.The studied traits were lifespan (LS), productive life (PL), cow efficiency index (CEI), number of calvings (NC), lifetime milk production (LMP), total lactation periods (TLP), lifetime daily milk production (LDMP), and total dry periods (TDP). The least squares means of LS, PL, CEI and NC were 96.3±1.80 months, 73.2±2.80 months, 64.9±0.008 % and 4.3±0.12 calving for Shami cows in respective order. The corresponding figures for Holstein cows were 66.1±1.81 months, 43.5±2.81 months, 56.4±0.012 % and 3.5±0.19 calving, respectively. The means of LMP, TLP, LDMP and TDP were 7713±563.38 kg, 787±33.43 days, 2.7±0.13 kg and 890±25.55 days for Shami cows and 14406±875.77 kg, 1049±51.96 days, 5.9±0.20 kg and 275±39.72 days for Hol-stein, respectively.The effect of breed was highly significant (P<0.01) on all studied traits. Cows for both breeds with AFC less than 24 months had more PL and NC. Also, cows with the highest average FLMY had the highest LMP, LDMP and TLP. It could be concluded that under the subtropical condi-tions, Shami cows exhibit superiority for longevity traits compared to Holstein ones.

show abstract

“…The lifespan and productive life of cows are complex and essential traits for selection and genetic improvement (Kamaldinov et al, 2021), therefore, increasing productive life leads to achieving higher economic return from cows through reducing herd replacement costs and increasing both numbers of calvings and lifetime milk yield (Dallago et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Longevity traits of Shami and Holstein Cows in Syria

Almasri¹,

Abou-Bakr²,

Ibrahim³

et al. 2021

Preprint

View full text Add to dashboard Cite

This research aimed to study the effect of age at first calving (AFC) and first lactation milk yield (FLMY) on the longevity traits of Shami and Holstein cows under the Syrian environment and estimate longevity traits for both breeds. The complete records from birth to voluntary culling were collected for 569 Shami cows and 1699 Holstein cows during the period from 1982 to 2014 at two experimental stations, Ministry of Agriculture and Land Reclamation, Syria. Data were analyzed using the General Linear Model (XLSTAT, 2020). The least square means of lifespan (LS), productive life (PL), a number of calvings (NC), lifetime milk production (LMP), and lifetime daily milk production (LDMP) were 93.7±0.14 months, 63.2±34 months, 4.2±0.14, 7683±0.14 kg, 2.6±0.14 kg for Shami cows, respectively. The corresponding values for Holstein cows were: 61.9±0.14 months, 31.6±34 months, 2.6±0.14, 10246±0.14 kg, 4.4±0.14 kg, respectively. The effect of AFC was significant on all studied traits except LS trait. Whereas, FLMY effect was significant only on LMP and LDMP traits. It was concluded that Shami cows had longer LS, PL, NC traits than Holstein ones, but their LMP and DLMY were lower. Reduction of AFC for Shami and Holstein cows to less than or equals to 25 months could be a proper management policy to improve each of PL, NC, LMP and LDMY. FLMY was found as an indicator for LMP and LDMY of Shami and Holstein cows.

show abstract

Assessment of the variability of reproductive abilities of a black and white cattle using genealogical data and paratypical factors

Cited by 5 publications

References 6 publications

Clustering of countries based on dairy productivity characteristics of Holstein cattle for breeding material selection

Clustering of countries based on dairy productivity characteristics of Holstein cattle for breeding material selection

comparative study between Shami and Holstein cows for longevity and productive lifetime traits under subtropical conditions

Longevity traits of Shami and Holstein Cows in Syria

Contact Info

Product

Resources

About