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Relationships between growth and body condition development during the rearing period and performance in the first three lactations in Holstein cows
average daily weight gain body condition score heifer performance dairy cows
2015/10/9
The relationship between growth and development of body condition during the rearing of replacement heifers and their subsequent performance in the production period of Holstein cows in the Czech Repu...
Analyses of genetic relationships between linear type traits, fat-to-protein ratio, milk production traits, and somatic cell count in first-parity Czech Holstein cows
Holstein cattle genetic parameters milk yield somatic cell score
2015/7/2
Genetic and phenotypic correlations between production traits, selected linear type traits, and somatic cell score were estimated. The results could be useful for breeding programs involving Czech Hol...
Genetic parameters for female fertility and milk production traits in first-parity Czech Holstein cows
dairy cattle reproduction production
2015/6/23
The aim of this study was to estimate genetic parameters for female fertility and production
traits in first-parity Czech Holstein cows and to quantify the effect of using this information on the ac...
Ovarian follicle growth dynamics during the postpartum period in Holstein cows and effects of contemporary cyst occurrence
cow postpartum ovary follicular wave
2015/6/23
The animals were assigned to three groups based on the time of the 1st ovulation: G1 (n = 9)
– the 1st dominant follicle (DF) ovulated, G2 (n = 10) – ovulation occurred on the 2nd or later follicula...
Genetic relationship between milk dry matter and other milk traits in extended lactations of Polish Holstein cows
genetic parameters milk dry matter extended lactation milk urea nitrogen lactose
2015/6/8
The objective of this research was to examine heritabilities and genetic, phenotypic and permanent environmental relationships between milk dry matter (DM) and milk traits such as milk, fat, protein a...
Relationships between the incidence of health disorders and the reproduction traits of Holstein cows in the Czech Republic
health fertility parameters dairy cows
2015/6/4
The objective of this study was to evaluate the relationships between several health disorders: milk fever (MF; hypocalcaemia and parturient paresis), retained placenta (RP; retained foetal membranes)...
Relationships between conformation traits and longevity of Holstein cows in the Czech Republic
Holstein cows longevity type traits correlations
2015/6/2
The relationships between conformation traits and longevity traits were analyzed in 41 489 Holstein cows born in the years 1994–1999 which were culled by 30th June 2005. Pearson correlation coefficien...
Effects of different forage-containing rations on metabolic parameters and milk yield in the peripartum of Holstein cows
hay silage forage
2015/6/1
To evaluate the forage effects on performance and metabolic parameters, 24 Holsteins were randomly fed one of the diets containing a forage mixture with majority of alfalfa hay (AH), alfalfa silage (A...
Effects of Supplementing Brown Seaweed By-products in the Diet of Holstein Cows during Transition on Ruminal Fermentation, Growth Performance and Endocrine Responses
Brown Seaweed By-products Growth Performance Fermentation Blood metabolites Holstein Cows
2016/5/18
This study was conducted to examine the effects of supplementing brown seaweed by-products (BSB) in the diet of ruminants on ruminal fermentation characteristics, growth performance, endocrine respons...
Citrus Pulp as a Dietary Source of Antioxidants for Lactating Holstein Cows Fed Highly Polyunsaturated Fatty Acid Diets
Flavonoids Polyphenols Ferric Reducing Antioxidant Power
2016/5/17
The effects of feeding pelleted citrus pulp (PCP) as a natural antioxidant source on the performance and milk quality of dairy cows fed highly polyunsaturated fatty acid (FA) diets were evaluated. Fou...
Metabolic level recognition of progesterone in dairy Holstein cows using probabilistic models
progesterone pharmacokinetic Hill equation metabolism milk yield Bayesian modeling
2014/10/24
Administration of exogenous progesterone is widely used in hormonal protocols for estrous (re)synchronization of dairy cattle without regarding pharmacological issues for dose calculation. This happen...
Short communication. Milk yield and composition, dry matter intake and blood parameters of Holstein cows fed ensiled apple pomace co-ensiled with broiler litter
apple pomace silage broiler litter Holstein dairy cows performance
2014/10/24
The present study was carried out to evaluate the effects of ensiled mixed apple pomace and broiler litter (EAPBL) on milk yield (MY) and composition, dry matter intake (DMI) and blood parameters at e...
Effect of Supplementation of Fish and Canola Oil in the Diet on Milk Fatty Acid Composition in Early Lactating Holstein Cows
Fish Oil Canola Oil Milk Fatty Acid Composition Holstein Dairy Cows
2016/5/9
This study examined the effects of supplementation of fish oil and canola oil in the diet on milk yield, milk components and fatty acid composition of Holstein dairy cows in early lactation. Eight mul...
Relation of Calcium Activity in Milk and Milk Production of Holstein Cows in Hot Season
Calcium Activity Dairy Cows Hot Season Milk Production
2016/5/9
The content of Ca in milk exceeds the typical saturation level of Ca salts, which is necessary for neonate growth. This calcium is distributed between the casein micelles in the colloidal and aqueous ...
Phenotypic Relationship between Lactation Persistency and Change in Body Condition Score in First-lactation Holstein Cows
Body Condition Score Cow Lactation Persistency
2016/5/6
We examined the correlations between lactation curve shape, including persistency and changes in body condition score (BCS) during early-stage (0 to 30 days in milk (DIM)), nadir-stage (31 to 90 DIM),...