Estimation of heritability and genetic correlations between milk yield and linear type traits in primiparous Holstein-Friesian cows

Ismael, Hasan; Janković, Dobrila; Stanojević, Dragan; Bogdanović, Vladan; Trivunović, Snežana; Djedović, Radica

doi:10.37496/rbz5020200121

Cited by 8 publications

(2 citation statements)

References 25 publications

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“…This indicates that cows with deep udder have relatively poor performance. FTP was positively correlated with 305MY of 0.07, close to the 0.091 reported by Ismael et al [23] for Serbian Holstein-Frisia cows.…”

Section: Genetic and Phenotypic Correlations Among Conformation Trait...supporting

confidence: 88%

Genetic parameters analysis of conformation traits and milk production traits in Chinese Holsteins

Xue

et al. 2022

Preprint

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Background: The objective of this study was to explore the genetic parameters of conformation traits and milk production traits of Chinese Holstein cattles in Northwest China, and to provide a reference for dairy cattle breeding in this region. The phenotypic data of 23 conformation traits and 5 milk production traits of 7,930 Chinese Holsteins from 18 pastures from 2007 to 2020 were collected. With field, identification season, calving season, and appraiser effect as a fixed effect and individual additive genetic effect as a random effect, DMU package and AIREML combined with EM algorithm were used to estimate the genetic parameters of conformation traits and milk production traits. Results: The estimated heritability of conformation traits ranged from 0.11 (angularity) to 0.37 (heel dept), and the genetic correlation between conformation traits ranged from -0.73 (bone quality and rear leg-rear view) to 0.76 (chest width and loin strength). The estimated values of genetic correlation between conformation traits and milk production traits ranged from -0.31 (pin setting and milk yield) to 0.34 (stature and milk yield), -0.33 (pin setting and 305-d fat) to 0.57 (breast texture and 305-d fat), -0.32 (pin setting and 305-d protein) to 0.38 (udder texture and 305-d protein), and -0.43, respectively (heel dept and somatic cell score) ~ 0.34 (body depth and somatic cell score) and -0.56 (foot angle and 305-d milk yield) ~ 0.32 (body depth and 305-d milk yield). There was a positive genetic correlation between most conformation traits and 305-d fat and 305-d protein, but a weak genetic negative correlation with milk yield. Conclusions: Strengthening the selection of medium and high heritability of milk production traits and conformation traits, especially the selection of rear udder traits and body shape total score, was beneficial to improve the performance of dairy cows.

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Section: Genetic and Phenotypic Correlations Among Conformation Trait...supporting

confidence: 88%

Genetic parameters analysis of conformation traits and milk production traits in Chinese Holsteins

Xue

et al. 2022

Preprint

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“…The effect of heredity on the results of a linear type assessment is evidenced by the fact that its results can depend both on paternal origin and on belonging to a certain genealogical line (Iliashenko, 2017;Hetia et al, 2020). In the vast majority, the results of the assessment of descriptive traits are marked by probable inheritance coefficients (Salohub et al, 2018;Hakim et al, 2020;Karpenko, 2020;Ismael et al, 2021). It is established that many of the evaluated exterior traits are positively correlated with productivity and longevity indicators (Alimzhanova et al, 2018;Cherniak & Honcharuk, 2018;Iliashenko, 2018).…”

Section: Introductionmentioning

confidence: 99%

Exterior of Сows of the Ukrainian Black-Spotted Dairy Breed, Obtained under Various Selection Options

KOHUT¹,

PETRYSHYN²,

SEDILO³

et al. 2022

Scientific Horizons

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Analysis of the effectiveness of evaluating inline and inter-line variants of combinations by type and finding their best variants in practical selective breeding is a relevant task that allows obtaining offspring of the desired quality. The purpose of this study is to figure out the specific features of the body structure of the firstborn cows of the Ukrainian blackspotted dairy breed of the western inbred type, depending on their origin, as well as to establish the type of inheritance of these indicators in line crosses based on the results of the evaluation by type. The study found the types of selection through genealogical analysis of pedigrees, linear evaluation of cows by type according to two evaluation systems – linear description of individual articles of the exterior on a 9-point scale and evaluation of complexes of exterior features of the animal type on a 100-point scale, obtained results were evaluated according to Student’s t-test. Using the scheme, it was found that the firstborn cows obtained as a result of the inline selection are characterized by optimal scores by type. However, animals from the Valianta 1650414 line received the highest ratings for linear traits of height at the withers, width of chest and rear, body depth. The study analysed the evaluation of firstborn cows by type, obtained in the interline selection, and it was found that the indicators of linear evaluation by type of cross lines correspond to and prevail over the average values for the breed. Cross cows ♂Valianta 1650414 x ♀Eleveishna 1491007 received the highest score for milk type on a 100-point scale. It was proved that most of the evaluated traits in line crosses were inherited according to the intermediate type. However, in the cross ♂Chifa 1427381 x ♀Eleveishna 1491007, the evaluation of individual traits (height, chest width, angle of withers, rear attachment, and depth of udder) statistically probably exceeded the values of the corresponding evaluations of the firstborns of the paternal and maternal lines, and the dominance of the maternal line was observed in the cross-breed cows ♂Chifa 1427381 x ♀Valianta 1650414 according to the value of the assessment of individual udder traits. The obtained results will allow performing optimal selection of parent pairs from animals evaluated by type for selection and breeding work with cattle herds to consolidate them by type

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The relationship between the milk productivity of cows and their daughters in an Ayrshire herd in the conditions of North-West Russia

Komlyk,

Grishina

2024

E3S Web of Conf.

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Selection of cows based on the productivity of their mothers is an important part of breeding work. The purpose of the study is to analyze the manifestation of high productivity of Ayrshire cows depending on the milk yield of their mothers. The heritability of milk yield and composition of mothers’ milk by daughters was established to be 0.410-0.112. The maximum number of daughters with a milk yield of 10 thousand kg or more was identified in the 3rd lactation (up to 27.9%). It is advisable to select cows for herd reproduction from mothers evaluated by the results of the 3rd lactation.

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Estimation of heritability and genetic correlations between milk yield and linear type traits in primiparous Holstein-Friesian cows

Cited by 8 publications

References 25 publications

Genetic parameters analysis of conformation traits and milk production traits in Chinese Holsteins

Genetic parameters analysis of conformation traits and milk production traits in Chinese Holsteins

Exterior of Сows of the Ukrainian Black-Spotted Dairy Breed, Obtained under Various Selection Options

The relationship between the milk productivity of cows and their daughters in an Ayrshire herd in the conditions of North-West Russia

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