The effect of cow age at first insemination on productive and reproductive traits, as well as on longevity and lifetime production ones was examined in the Simmental cows housed at the 'Zlatiborski Suvati' (Mt. Zlatibor Pastures) Farm. The general linear model was used to calculate linear regression coefficients for the effect of age at first insemination on productive, reproductive traits, longevity traits and lifetime production traits The calculated linear regression coefficients suggested that the age at first insemination had a statistically significant effect (P lt 0.05) on milk, milk fat and 4% fat milk production in whole lactations (bxy=1.508, bxy=0.056 and bxy=1.464), a very high significant effect (P lt 0.001) on the age at culling and cow utilisation index ((bxy=1.386 and bxy=-0.020), and no significant effect (P>0.05) on other longevity traits. The age of cows at first insemination did not significantly affect (P>0.05) fertility and lifetime milk and milk-fat production tr...aits. The presented results suggest that cow age at first insemination should be included in the models used in estimating breeding values of dairy cows.
Uticaj uzrasta krava pri prvoj oplodnji na proizvodne i reproduktivne osobine i osobine dugovečnosti i životne proizvodnje ispitivan je kod krava simentalske rase smeštenih na farmi 'Zlatiborski suvati'. Opštim linearnim modelom izračunati su koeficijenti linearne regresije uticaja uzrasta pri prvoj oplodnji na proizvodne i reproduktivne osobine, kao i osobine dugovečnosti i životne proizvodnje Na osnovu izračunatih koeficijenata linearne regresije uzrast pri prvoj oplodnji statistički je značajno uticao (P lt 0.05) na proizvodnju mleka, mlečne mast i 4% masnog mleka u celim laktacijama (bxy=1.508, bxy=0.056 i bxy=1.464), vrlo visoko značajno (P lt 0.001) na uzrast pri izlučenju i indeks iskorišćavanja krava (bxy=1.386 i bxy=-0.020), dok na ostale osobine dugovečnosti nije imao signifikantan uticaj (P>0.05). Uzrast krava pri prvoj oplodnji nije imao značajnog uticaja (P>0.05) na osobine plodnosti i životne proizvodnje mleka i mlečne masti. Na osnovu prikazanih rezultata uzrast krava pr...i prvoj oplodnji trebalo bi uvrstiti u modele za procenu odgajivačke vrednosti mlečnih krava.
Keywords:
Simmental breed / regression / fertility / milk performance / longevity / lifetime production / simentalska rasa / regresija / plodnost / mlečnost / dugovečnost / životna proizvodnja
Source:
Savremena poljoprivreda, 2008, 57, 3-4, 150-157
Publisher:
Univerzitet u Novom Sadu - Poljoprivredni fakultet, Novi Sad i Naučni institut za ratarstvo i povrtarstvo, Novi Sad
TY - JOUR
AU - Petrović, Milun D.
AU - Bogdanović, Vladan
AU - Bogosavljević-Bošković, Snežana
AU - Djoković, Radojica
PY - 2008
UR - http://aspace.agrif.bg.ac.rs/handle/123456789/1819
AB - The effect of cow age at first insemination on productive and reproductive traits, as well as on longevity and lifetime production ones was examined in the Simmental cows housed at the 'Zlatiborski Suvati' (Mt. Zlatibor Pastures) Farm. The general linear model was used to calculate linear regression coefficients for the effect of age at first insemination on productive, reproductive traits, longevity traits and lifetime production traits The calculated linear regression coefficients suggested that the age at first insemination had a statistically significant effect (P lt 0.05) on milk, milk fat and 4% fat milk production in whole lactations (bxy=1.508, bxy=0.056 and bxy=1.464), a very high significant effect (P lt 0.001) on the age at culling and cow utilisation index ((bxy=1.386 and bxy=-0.020), and no significant effect (P>0.05) on other longevity traits. The age of cows at first insemination did not significantly affect (P>0.05) fertility and lifetime milk and milk-fat production traits. The presented results suggest that cow age at first insemination should be included in the models used in estimating breeding values of dairy cows.
AB - Uticaj uzrasta krava pri prvoj oplodnji na proizvodne i reproduktivne osobine i osobine dugovečnosti i životne proizvodnje ispitivan je kod krava simentalske rase smeštenih na farmi 'Zlatiborski suvati'. Opštim linearnim modelom izračunati su koeficijenti linearne regresije uticaja uzrasta pri prvoj oplodnji na proizvodne i reproduktivne osobine, kao i osobine dugovečnosti i životne proizvodnje Na osnovu izračunatih koeficijenata linearne regresije uzrast pri prvoj oplodnji statistički je značajno uticao (P lt 0.05) na proizvodnju mleka, mlečne mast i 4% masnog mleka u celim laktacijama (bxy=1.508, bxy=0.056 i bxy=1.464), vrlo visoko značajno (P lt 0.001) na uzrast pri izlučenju i indeks iskorišćavanja krava (bxy=1.386 i bxy=-0.020), dok na ostale osobine dugovečnosti nije imao signifikantan uticaj (P>0.05). Uzrast krava pri prvoj oplodnji nije imao značajnog uticaja (P>0.05) na osobine plodnosti i životne proizvodnje mleka i mlečne masti. Na osnovu prikazanih rezultata uzrast krava pri prvoj oplodnji trebalo bi uvrstiti u modele za procenu odgajivačke vrednosti mlečnih krava.
PB - Univerzitet u Novom Sadu - Poljoprivredni fakultet, Novi Sad i Naučni institut za ratarstvo i povrtarstvo, Novi Sad
T2 - Savremena poljoprivreda
T1 - The effect of age at first insemination on reproductive, productive, longevity and lifetime production traits in Simmental cows
T1 - Uticaj uzrasta pri prvoj oplodnji na reproduktivne, proizvodne i funkcionalne osobine krava simentalske rase
EP - 157
IS - 3-4
SP - 150
VL - 57
UR - https://hdl.handle.net/21.15107/rcub_agrospace_1819
UR - conv_2603
ER -
@article{
author = "Petrović, Milun D. and Bogdanović, Vladan and Bogosavljević-Bošković, Snežana and Djoković, Radojica",
year = "2008",
abstract = "The effect of cow age at first insemination on productive and reproductive traits, as well as on longevity and lifetime production ones was examined in the Simmental cows housed at the 'Zlatiborski Suvati' (Mt. Zlatibor Pastures) Farm. The general linear model was used to calculate linear regression coefficients for the effect of age at first insemination on productive, reproductive traits, longevity traits and lifetime production traits The calculated linear regression coefficients suggested that the age at first insemination had a statistically significant effect (P lt 0.05) on milk, milk fat and 4% fat milk production in whole lactations (bxy=1.508, bxy=0.056 and bxy=1.464), a very high significant effect (P lt 0.001) on the age at culling and cow utilisation index ((bxy=1.386 and bxy=-0.020), and no significant effect (P>0.05) on other longevity traits. The age of cows at first insemination did not significantly affect (P>0.05) fertility and lifetime milk and milk-fat production traits. The presented results suggest that cow age at first insemination should be included in the models used in estimating breeding values of dairy cows., Uticaj uzrasta krava pri prvoj oplodnji na proizvodne i reproduktivne osobine i osobine dugovečnosti i životne proizvodnje ispitivan je kod krava simentalske rase smeštenih na farmi 'Zlatiborski suvati'. Opštim linearnim modelom izračunati su koeficijenti linearne regresije uticaja uzrasta pri prvoj oplodnji na proizvodne i reproduktivne osobine, kao i osobine dugovečnosti i životne proizvodnje Na osnovu izračunatih koeficijenata linearne regresije uzrast pri prvoj oplodnji statistički je značajno uticao (P lt 0.05) na proizvodnju mleka, mlečne mast i 4% masnog mleka u celim laktacijama (bxy=1.508, bxy=0.056 i bxy=1.464), vrlo visoko značajno (P lt 0.001) na uzrast pri izlučenju i indeks iskorišćavanja krava (bxy=1.386 i bxy=-0.020), dok na ostale osobine dugovečnosti nije imao signifikantan uticaj (P>0.05). Uzrast krava pri prvoj oplodnji nije imao značajnog uticaja (P>0.05) na osobine plodnosti i životne proizvodnje mleka i mlečne masti. Na osnovu prikazanih rezultata uzrast krava pri prvoj oplodnji trebalo bi uvrstiti u modele za procenu odgajivačke vrednosti mlečnih krava.",
publisher = "Univerzitet u Novom Sadu - Poljoprivredni fakultet, Novi Sad i Naučni institut za ratarstvo i povrtarstvo, Novi Sad",
journal = "Savremena poljoprivreda",
title = "The effect of age at first insemination on reproductive, productive, longevity and lifetime production traits in Simmental cows, Uticaj uzrasta pri prvoj oplodnji na reproduktivne, proizvodne i funkcionalne osobine krava simentalske rase",
pages = "157-150",
number = "3-4",
volume = "57",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_1819, conv_2603"
}
Petrović, M. D., Bogdanović, V., Bogosavljević-Bošković, S.,& Djoković, R.. (2008). The effect of age at first insemination on reproductive, productive, longevity and lifetime production traits in Simmental cows. in Savremena poljoprivreda
Univerzitet u Novom Sadu - Poljoprivredni fakultet, Novi Sad i Naučni institut za ratarstvo i povrtarstvo, Novi Sad., 57(3-4), 150-157.
https://hdl.handle.net/21.15107/rcub_agrospace_1819
Petrović MD, Bogdanović V, Bogosavljević-Bošković S, Djoković R. The effect of age at first insemination on reproductive, productive, longevity and lifetime production traits in Simmental cows. in Savremena poljoprivreda. 2008;57(3-4):150-157.
https://hdl.handle.net/21.15107/rcub_agrospace_1819 .
Petrović, Milun D., Bogdanović, Vladan, Bogosavljević-Bošković, Snežana, Djoković, Radojica, "The effect of age at first insemination on reproductive, productive, longevity and lifetime production traits in Simmental cows" in Savremena poljoprivreda, 57, no. 3-4 (2008):150-157,
https://hdl.handle.net/21.15107/rcub_agrospace_1819 .
