Results 11 to 20 of about 21,703 (263)
Аграрная наука Евро-Северо-Востока, 2023 The direction of the breeding process in herds and populations of dairy cattle breeds based on the actual indicators and variability of the trait is one of the main factors that allows to determine the effectiveness of breeding measures.
N. I. Abramova +3 more
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Breeding sustainable beef cows
, 2022 Data from "Breeding sustainable beef cows". The zip file contains supplement1.xlsx, a spreadsheet with mean breed composition and heterozygosity values of cows grouped by projected cow weight and weight weaned, and supplement2.txt, a list of variants and their effects on cow weight and weight weaned.
Snelling, Warren M. +3 more
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Response to an estradiol-based fixed-time artificial insemination (FTAI) protocol in postpartum beef cows: interaction between the ovulatory inductor and the genotype [PDF]
Journal of Central European AgricultureTo evaluate if the ovulatory inducer, the genotype, and their interaction affect the reproductive response to a fixed-timed artificial (FTAI) protocol and to determine whether this protocol improves the breading season pregnancy rate (PR), a total of 242
Cyndi HERNÁNDEZ-CORONADO +4 more
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Interaction of economically useful traits in cows of different breeds [PDF]
E3S Web of Conferences, 2021 A related Holstein breed has recently been used to improve domestic dairy cattle and create highly productive herds by purchasing semen from breeding bulls, as well as a large number of heifers and calves of foreign breeding. The purpose of the work is a
Rebezov M.B. +4 more
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Follicular fluid composition of ovulatory follicles in repeat breeder Holstein dairy cows
Asian Pacific Journal of Reproduction, 2019 Objective: To examine differences in the metabolite, steroid and lipopolysaccharide of follicular fluid collected from the ovulatory follicle of Holstein repeat breeding cows, lactating cows, and virgin fertile heifers.
Asghar Mogheiseh +5 more
doaj +1 more source
Veterinary Sciences, 2022 The present study aimed to compare serum amyloid A (SAA) concentrations of Japanese Black (JB) breeding cows in both clinically normal and diseased cows diagnosed by veterinarians using modified latex agglutination turbidimetric immunoassay (LATIA) to ...
Urara Shinya +6 more
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When Should We Stop Breeding Dairy Cows?
EDIS, 2014 The decision of when to start and when to stop breeding cows during a lactation is often a challenging one for dairy producers. This 3-page fact sheet presents practical rules on how to determine when to stop breeding Holstein dairy cows based on ...
Klibs N. Galvão, Albert De Vries
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Immunogenetic monitoring in the breeding of cow families of the breed of Sychevka cattle
The Agrarian Scientific Journal, 2023 In the breeding of cattle with pure-breeding, an important role is given to working with brood families. At the same time, purebreeder try to preserve and propagate valuable genes of outstanding dairy cows in subsequent generations through daughters and sons.
Mikhail Eliseevich Gontov +2 more
openaire +1 more source
Progress of Machine Vision Technologies in Intelligent Dairy Farming
Applied Sciences, 2023 The large-scale and precise intelligent breeding mode for dairy cows is the main direction for the development of the dairy industry. Machine vision has become an important technological means for the intelligent breeding of dairy cows due to its non ...
Yongan Zhang +6 more
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Efficiency of blood “refreshing” method in cattle pure breeding of the Simmental breed [PDF]
BIO Web of Conferences, 2021 Over the past two decades, pedigree cattle and sperm products have been imported into the Russian Federation from outstanding breeding bulls of the Simmental breed from Western Europe, including Austria, within the framework of the “AIC Development ...
Lamonov Sergey Aleksandrovich +1 more
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