Relationships between type and longevity in the Holstein breed

Larroque, Hélène; Ducrocq, Vincent

doi:10.1186/1297-9686-33-1-39

Cited by 72 publications

(105 citation statements)

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“…In terms of suspension ligament and fore udder the results of our analysis confirm [18], who found low relationship between longevity and cows suspension ligament or fore udder formation. Contrary with our results [35], [3] and [30] considered suspension ligament as an important exterior trait conducive to the length of productive life of cows.…”

Section: Relation Between Length Of Productive Life and Conformation supporting

confidence: 80%

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The Relationship Between the Length of Productive Life and the Body Conformation Traits in Cows

Strapák¹,

Juhás²,

Strapáková³

2011

j. cent. eur. agric.

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The aim of this study was to analyze the length of productive life in 118 646 dairy cows of the Slovak Simmental breed. The average length of productive life reached 1451 days (3.98 years). The recorded factors with most important impact to the length of productive life were: milk production at first lactation (F = 7736.88+++), year of culling (F = 4890.54) and the age at first calving (F = 2759.81). The length of productive life was significantly affected by reason of culling (F = 272.43) and the Sire (F = 53.43). The analysis of effects of exterior traits to the length of productive life was done in group of 6585 culled cows. From the main exterior traits the most important impact was recorded for body frame (F = 17.39+++), udder (F = 9.43+++) and feet and legs (F = 6.41+++). For more detail advisement was tested the influence of partial exterior traits. From the partial exterior traits the most significant effect to length of productive live had udder depth (F = 26.04+++), teats length (F = 18.49+++), teats thickness (F = 3.23+++) and teats placement (F = 3.31++). From partial traits of feet and legs the most significant effect to length of productive live had heel joint expression (F = 9.10+++) and foot (F = 5.47+++). Results from the present study confirmed the important influence of main and partial exterior type traits of Slovak Simmental breed on the productive life of cows.Keywords: longevity, length of productive life, effects, type traits, Slovak Simmental breed Abstrakt V práci sme hodnotili úroveň dosahovaného produkčného veku 118 646 kráv slovenského strakatého plemena. Priemerný produkčný vek za celý sledovaný súbor predstavoval 1451 dní (3,98 roka). Na dĺžku produkčného veku kráv z definovaných faktorov najvýznamnejšie vplývali produkcia mlieka na prvej laktácii (F = 7736,88+++), rok vyradenia (F = 4890,54) a vek pri prvom otelení (F = 2759,81). Na produkčný vek kráv významne vplývali aj dôvod vyradenia a plemenný býk (F = 53,43). V populácii 6 585 vyradených kráv slovenského strakatého plemena sme analyzovali vplyv ukazovateľov exteriéru na dĺžku produkčného veku kráv. Z hlavných znakov exteriéru najvýznamnejšie vplývali na dĺžku produkčného veku kráv rámec tela (F = 17,39+++), vemeno (F=9,43+++) a končatiny (F=6,41+++). Pre detailnejšie posúdenie sme testovali úroveň vplyvu jednotlivých čiastkových znakov exteriéru. Z čiastkových znakov vemena najvýznamnejšie ovplyvňovali dĺžku produkčného veku kráv hĺbka vemena (F = 26,04+++), dĺžka ceckov (F = 18,49+++), hrúbka ceckov (F = 3,23+++) a postavenie ceckov (F = 3,31++). Z čiastkových znakov končatín najvýznamnejšie vplývali na dĺžku produkčného veku kráv slovenského strakatého vyjadrenie pätového kĺbu (F = 9,10+++) a paznecht (F = 5,47+++). Výsledky práce potvrdili významný vplyv hlavných a čiastkových znakov exteriéru kráv strakatého plemena na dĺžku produkčného veku kráv.Kľúčové slová: dlhovekosť, produkčný vek, nepriame úžitkové vlastnosti, exteriér, slovenské strakaté plemeno Detailed abstract V práci sme hodnotili úroveň dosahovaného...

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Section: Relation Between Length Of Productive Life and Conformation supporting

confidence: 80%

“…The importance of udder depth as a main trait of udder conformation, that affects longevity and length of productive life, was confirmed by [21], [6], [24], [7], and especially by [18] and [9].…”

Section: Relation Between Length Of Productive Life and Conformation mentioning

confidence: 76%

The Relationship Between the Length of Productive Life and the Body Conformation Traits in Cows

Strapák¹,

Juhás²,

Strapáková³

2011

j. cent. eur. agric.

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“…Our estimates ranged from 0.28 to 0.54, while the corresponding range for literature estimates was -0.07 to 0.21 (Cruickshank et al, 2002;Vukasinovic et al, 2002;Tsuruta et al, 2005). Buenger et al (2001), Larroque & Ducrocq (2001), and Schneider et al (2003) reported that cows with extremely close rear teats were more likely to be culled than cows with extremely wide rear teats.…”

Section: Resultsmentioning

confidence: 46%

Relationships between functional herd life and conformation traits in the South African Jersey breed

Toit¹,

Wyk²,

Maiwashe³

2012

SA J. An. Sci.

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________________________________________________________________________________ AbstractThe genetic relationship between conformation traits and functional herd life of the South African Jersey population was investigated. Data on conformation traits (n = 46 238) and functional herd life (n = 90 530) on registered South African Jersey cows calving between 1989 and 2008 were obtained from the Integrated Registration and Genetic Information System. Conformation traits were scored using a subjective linear scoring system ranging from 1 to 9, except for foot angle, with a maximum score of 8. Conformation traits included stature, chest width, body depth, dairy strength, rump angle, thurl width, rear leg side view, foot angle, fore udder attachment, rear udder height, rear udder width, udder support, udder depth, front teat placement, rear teat placement and front teat length. Genetic correlations between conformation traits and functional herd life were estimated by a series of bivariate analyses. Significant moderate to strong positive genetic correlations between most udder traits and functional herd life (0.23 to 0.63) were estimated. The most important udder traits related to functional herd life were fore udder attachment, rear udder height and udder depth. Most of the body structure traits had a low to moderate negative correlation with functional herd life (-0.04 to -0.27). However, rump angle and foot angle were estimated to have a moderate positive genetic correlation with functional herd life. The genetic relationships between functional herd life and conformation traits in the South African Jersey breed indicate that conformation traits could be used to enhance the accuracy of genetic evaluation for functional herd life. It is therefore recommended that current national genetic evaluation for functional herd life in the South African Jersey breed should include conformation traits. ________________________________________________________________________________

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“…Linear measurements are associated with both production and non-production traits in cows, and thus with production efficiency (Berry et al, 2004). In dairy cows, there is both phenotypic and genetic relationship between the linear traits and reproductive performance (Larroque and Ducrocq, 2001). Although both phenotypic and genetic relationships between linear traits and fertility traits have been established for large-framed dairy cows (Berry et al, 2004), no studies have been conducted in Nguni cows.…”

Section: Introductionmentioning

confidence: 99%

Relationship between linear type and fertility traits in Nguni cows

Zindove

Chimonyo

Nephawe

2015

Animal

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The objective of the study was to assess the dimensionality of seven linear traits (body condition score, body stature, body length, heart girth, navel height, body depth and flank circumference) in Nguni cows using factor analysis and indicate the relationship between the extracted latent variables and calving interval (CI) and age at first calving (AFC). The traits were measured between December 2012 and November 2013 on 1559 Nguni cows kept under thornveld, succulent karoo, grassland and bushveld vegetation types. Low partial correlations (−0.04 to 0.51), high Kaiser statistic for measure of sampling adequacy scores and significance of the Bartlett sphericity test (P < 0.01) showed that there were significant phenotypic correlations between the linear traits and the data were suitable for factor analysis. Two factors had eigenvalues >1. Factor 1 included body condition score, body depth, flank circumference and heart girth and represented body capacity of cows. Factor 2 included body length, body stature and navel height and represented frame size of cows. CI and AFC decreased linearly with increase of factor 1. There was a quadratic increase in AFC as factor 2 increased (P < 0.05). It was concluded that the linear type traits under study can be grouped into two distinct factors, one linked to body capacity and the other to the frame size of the cows. Small-framed cows with large body capacities have shorter CI and AFC.

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Relationships between type and longevity in the Holstein breed

Cited by 72 publications

References 4 publications

The Relationship Between the Length of Productive Life and the Body Conformation Traits in Cows

The Relationship Between the Length of Productive Life and the Body Conformation Traits in Cows

Relationships between functional herd life and conformation traits in the South African Jersey breed

Relationship between linear type and fertility traits in Nguni cows

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