Influence of cattle breed and country of origin on milk yield and milk composition in dairy cows

Kalińska, Aleksandra; Gołębiewski, M.; Kruzińska, Brygida; Przysucha, T.; Slósarz, Jan; Wójcik, Agata

doi:10.22630/aas.2019.58.1.3

Cited by 6 publications

(2 citation statements)

References 2 publications

(2 reference statements)

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“…The chronic form is the least frequent form and leads to persistent inflammation of the mammary gland. According to the literature, the frequency of the clinical form of mastitis varies among different countries and ranges from 12 to 30% (Kalinśka et al, 2018). On the other hand, the subclinical form involves the highest costs associated with difficulties in detection due to the lack of visible symptoms (Yalcin, 2000).…”

Section: Introductionmentioning

confidence: 99%

Detection of immunoreactive proteins of Escherichia coli, Streptococcus uberis, and Streptococcus agalactiae isolated from cows with diagnosed mastitis

Dobrut

Wójcik²,

Młodzińska³

et al. 2023

Front. Cell. Infect. Microbiol.

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IntroductionMastitis is a widespread mammary gland disease of dairy cows that causes severe economic losses to dairy farms. Mastitis can be caused by bacteria, fungi, and algae. The most common species isolated from infected milk are, among others, Streptococcus spp., and Escherichia coli. The aim of our study was protein detection based on both in silico and in vitro methods, which allowed the identification of immunoreactive proteins representative of the following species: Streptococcus uberis, Streptococcus agalactiae, and Escherichia coli.MethodsThe study group included 22 milk samples and 13 serum samples obtained from cows with diagnosed mastitis, whereas the control group constituted 12 milk samples and 12 serum samples isolated from healthy animals. Detection of immunoreactive proteins was done by immunoblotting, while amino acid sequences from investigated proteins were determined by MALDI-TOF. Then, bioinformatic analyses were performed on detected species specific proteins in order to investigate their immunoreactivity.ResultsAs a result, we identified 13 proteins: 3 (molybdenum cofactor biosynthesis protein B, aldehyde reductase YahK, outer membrane protein A) for E. coli, 4 (elongation factor Tu, tRNA uridine 5-carboxymethylaminomethyl modification enzyme MnmG, GTPase Obg, glyceraldehyde-3-phosphate dehydrogenase) for S. uberis, and 6 (aspartate carbamoyltransferase, elongation factor Tu, 60 kDa chaperonin, elongation factor G, galactose-6-phosphate isomerase subunit LacA, adenosine deaminase) for S. agalactiae, which demonstrated immunoreactivity to antibodies present in serum from cows with diagnosed mastitis.DiscussionDue to the confirmed immunoreactivity, specificity and localization in the bacterial cell, these proteins can be considered considered potential targets in innovative rapid immunodiagnostic assays for bovine mastitis, however due to the limited number of examined samples, further examination is needed.

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Section: Introductionmentioning

confidence: 99%

Detection of immunoreactive proteins of Escherichia coli, Streptococcus uberis, and Streptococcus agalactiae isolated from cows with diagnosed mastitis

Dobrut

Wójcik²,

Młodzińska³

et al. 2023

Front. Cell. Infect. Microbiol.

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“…The realization of the genetic potential of livestock bred in different territories, with different climatic, ecological and other conditions, as well as with various genetic resources of animals, cannot be carried out in the same way in all zones and regions. Therefore, in each specific zone and region, it is necessary to develop the most acceptable option for the development of dairy cattle breeding [1,2].…”

Section: Introductionmentioning

confidence: 99%

Milk productivity of holstein cows at optimization of fat levels in their diets

Petrov

Семенов

Алексеев

2021

IOP Conf. Ser.: Earth Environ. Sci.

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The work is devoted to determining the optimal level of fat in concentrate-senage diets for high-yield cows and studying the effect of various levels of fat in the dry matter of the diet on milk productivity and chemical composition of milk. Studies have shown the insufficiency of household diets of highly productive cows with a dry diet content of 3.2% raw fat. This deterred the potential for dairy productivity. Addition of fat in cow diets by equivalent energy and protein replacement of a portion of the compound feed with a rapeseed cake up to a level of 4.2% of the dry substance provides an increase in milk productivity in relation to the control group receiving 3.2% fat. Optimization of the fat level in the dry substance of the diet up to 4.2% in the nutrition system of cows increases the functional activity of the breast in their body, which is expressed in the growth of breast productivity by 6.78%, improvement of the chemical composition and technological properties of milk. A further increase in dietary fat to 5.2% has a less pronounced effect on the change in milk productivity.

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Associations Between BLG, CSN3, DGAT1, GH, PIT1, and PRL Gene Polymorphisms and Milk Production Traits in Holstein Dairy Cows: A Meta-Analysis

Ozdemir,

Motmain,

Ekinci

et al. 2024

Biochem Genet

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Influence of cattle breed and country of origin on milk yield and milk composition in dairy cows

Abstract:

Cited by 6 publications

References 2 publications

Detection of immunoreactive proteins of Escherichia coli, Streptococcus uberis, and Streptococcus agalactiae isolated from cows with diagnosed mastitis

Detection of immunoreactive proteins of Escherichia coli, Streptococcus uberis, and Streptococcus agalactiae isolated from cows with diagnosed mastitis

Milk productivity of holstein cows at optimization of fat levels in their diets

Associations Between BLG, CSN3, DGAT1, GH, PIT1, and PRL Gene Polymorphisms and Milk Production Traits in Holstein Dairy Cows: A Meta-Analysis

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