Results 1 to 10 of about 311,062 (183)

Qualitative indicators of milk of Simmental and Holstein cows in different seasons of lactation [PDF]

open access: yesVeterinary World, 2021
Background and Aim: Milk producers need to ensure that their cows are producing high-quality, nutritional milk, which is influenced by the breed, age, nutrition, and health status of lactating animals. The aim of this study was to determine the effect of
Aigerim Zhanuzakovna Khastayeva   +5 more
doaj   +1 more source

Evaluation of changes in behavior, heart rate and rectal body temperature in calves during two hours after birth [PDF]

open access: yesJournal of Central European Agriculture, 2022
The present experiment focuses on the evaluation of the behavior of Holstein calves in the first two hours after birth. The research took place at the Slovak University of Agriculture Farm in Oponice. The calf sample consisted of 11 individuals.
Terézia Hegerová   +3 more
doaj   +1 more source

Interacting-Holstein and extended-Holstein bipolarons [PDF]

open access: yesPhysical Review B, 2014
7 pages, 7 figures, accepted for publication in Phys.
Chakraborty, M, Tezuka, M, Min, BI
openaire   +3 more sources

Cow metabolic status assessed from fat/protein ratio in milk affected ovarian response and number of transferable embryos after superovulation

open access: yesCzech Journal of Animal Science, 2022
This work aimed to evaluate the quantity and the quality of flushed embryos based on the metabolic status of dairy cows, lactation number, and size of the ovaries.
Luděk Stádník   +5 more
doaj   +1 more source

Effect of Calving Season, Calving Year and Lactation Number on the Milk Yield Traits in Holstein Cows Raising in Şanlıurfa

open access: yesTurkish Journal of Agriculture: Food Science and Technology, 2020
The aim of the present study is to investigate the impact of some environmental factors on the descriptive values of milk yield characteristics in Holstein cows.
Durhasan Mundan   +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

Survival, lifetime production, and profitability of Normande × Holstein, Montbéliarde × Holstein, and Scandinavian Red × Holstein crossbreds versus pure Holsteins [PDF]

open access: yesJournal of Dairy Science, 2012
Pure Holstein (HO) cows (n=416) were compared with Normande (NO) × HO (n=251), Montbéliarde (MO) × HO (n=503), and Scandinavian Red (SR) × HO (n=321) crossbred cows for survival, lifetime production, and profitability in 6 commercial herds in California. The SR crossbred cows were sired by both Swedish Red and Norwegian Red bulls. Cows calved from June
B J, Heins, L B, Hansen, A, De Vries
openaire   +2 more sources

Genetic parameters between somatic cell score and production traits for Holstein cattle in Southern Brazil

open access: yesRevista Colombiana de Ciencias Pecuarias, 2020
Background: Somatic cell score is an important parameter to predict milk quality and health of cows. However, in countries like Brazil, this trait is still not selected on a large scale, and no genetic parameters are reported in the literature. Objective:
Gabrieli S. Romano   +4 more
doaj   +1 more source

Determination of Melatonin Differences between Day and Night Milk in Dairy Cattle

open access: yesJournal of Agricultural Sciences, 2021
The aim of this study was to determine the difference between melatonin hormone in night milk and melatonin concentration in day milk of Holstein cows.
Özcan Şahin   +4 more
doaj   +1 more source

Prospects of modernization of cattle breeding processes [PDF]

open access: yesBIO Web of Conferences, 2023
The development of livestock in industrialized nations has shown that when breeding activity is well-organized, it is feasible to enhance breeds and quickly boost output.
Dosmukhamedova Mukhayo   +1 more
doaj   +1 more source

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