Results 31 to 40 of about 135,005 (301)

The relation of GH1, GHR and DGAT1 polymorphisms with estimated breeding values for milk production traits of German Holstein sires

open access: yesCzech Journal of Animal Science, 2008
: We analysed the relations of estimated breeding values (EBV) of 315 German Holstein sires to their genotypes in growth hormone gene (GH1), growth hormone receptor gene (GHR) and acylCoA-diacylglycerol acyltransferase 1 (DGAT1).
E. Hradecká   +4 more
doaj   +1 more source

Blood and milk beta-hydroxybutyric acid concentrations in diff erent dairy cattle breeds and association of subclinical ketosis with postpartum health disorders, culling rate, body condition score, parity and milk production in holstein [PDF]

open access: yesKafkas Universitesi Veteriner Fakültesi Dergisi, 2022
Th e aim of the study was to analyse beta-hydroxybutyric acid concentration in the blood (BBAC) and milk (MBAC) at postpartum week 2 (PPW2) and week 4 (PPW4) in Holstein (n=216, 8 farms), Montbeliard (n=23), Simmental (n=38) and Holstein/Montbeliard ...
Kemal AKSOY   +3 more
doaj   +1 more source

Body condition score and live-weight effects on milk production in Irish Holstein-Friesian dairy cows [PDF]

open access: yes, 2007
peer-reviewedThe objective of the present study was to quantify the relationships among body condition score (BCS; scale 1 to 5), live weight (WT) and milk production in Irish Holstein-Friesian spring calving dairy cows.
Buckley, Frank   +2 more
core   +1 more source

Effects of Different Quality Roughage Supply on Performance of Holstein Calves during Preweaning Period

open access: yesJournal of Agricultural Sciences, 2017
Bu çalışmada, Holstein buzağılarda sütten kesim öncesi dönemde iki farklı kalitedeki kaba yem kullanımının (kıyılmış halde kuru yonca otu ve buğday sapı) büyüme, gelişme, yem tüketimi ve yemden yararlanma özellikleri üzerindeki etkileri araştırılmıştır ...
Mahmut Kaliber   +3 more
doaj   +1 more source

Influence of blood metabolites and body condition score at parturition on fertility and milk yield in Holstein cows

open access: yesRevista Colombiana de Ciencias Pecuarias, 2020
Background: Variables associated with body tissue mobilization place dairy cows at greater risk of reproductive failure. Objective: To investigate the association between blood metabolites and body condition score (BCS) at the beginning of lactation and ...
Edir Torres   +6 more
doaj   +1 more source

Comparison of Genetic Structure of DGAT1 and SCD1 Loci between Holstein and Simmental Population [PDF]

open access: yesمجله بیوتکنولوژی کشاورزی, 2015
The association of genes polymorphism of DGAT1 and SCD1 has proved with milk nutritive value. The aim of the present study was the comparison of genetic structure of DGAT1 and SCD1 loci between Holstein and Simmental population.
Mostafa Rezaei   +3 more
doaj   +1 more source

The effects of different types of bedding on the performance, skeletal and behavioral characteristics, hygienic and immunity conditions of suckling Holstein calves

open access: yesJournal of the Indonesian Tropical Animal Agriculture, 2021
To investigate the effects of bedding types on the performance, skeletal and behavioral characteristics, health and immunity conditions of suckling Holstein calves, an experiment was conducted in a completely randomized design using 80 Holstein calves ...
S. M. J. Hosseini   +2 more
doaj   +1 more source

Hepatogenous Photosensitivity Outbreak after Coccidiosis in Grazing Holstein Steers

open access: yesVeterinary Sciences, 2020
Clinical signs of photosensitivity in cattle can occur sporadically and unpredictably. It is believed that cases of photosensitivity may be underreported, causing inaccurate and inflated reports of mortality.
Christine C. Nieman   +4 more
doaj   +1 more source

Effect of somatic cell count on milk fat and protein in different parities and stages of lactation in Holstein cows

open access: yesActa Agriculturae Slovenica, 2017
The objective of this study was to investigate the effect of somatic cell score (SCS) on milk fat and protein in different parities and stages of lactation in Iranian Holstein cows.
Arash CHEGINI   +3 more
doaj   +1 more source

Localization in the Disordered Holstein Model [PDF]

open access: yesCommunications in Mathematical Physics, 2018
The Holstein model describes the motion of a tight-binding tracer particle interacting with a field of quantum harmonic oscillators. We consider this model with an on-site random potential. Provided the hopping amplitude for the particle is small, we prove localization for matrix elements of the resolvent, in particle position and in the field Fock ...
Rajinder Mavi, Jeffrey Schenker
openaire   +3 more sources

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