Influence of organic zinc on lactation performance and somatic cell count in dairy cows
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F23%3A43907568" target="_blank" >RIV/60076658:12220/23:43907568 - isvavai.cz</a>
Alternative codes found
RIV/62157124:16170/23:43881039
Result on the web
<a href="https://actavet.vfu.cz/92/3/0233/" target="_blank" >https://actavet.vfu.cz/92/3/0233/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2754/avb202392030233" target="_blank" >10.2754/avb202392030233</a>
Alternative languages
Result language
angličtina
Original language name
Influence of organic zinc on lactation performance and somatic cell count in dairy cows
Original language description
The objective of the study was to evaluate the effect of organically chelated zinc methionine (Zn-Met) supplementation on lactation performance of dairy cattle, i.e. milk yield (MY), milk components, and the somatic cell count (SCC) in early lactation. Eighty multiparous cows received two treatments (n = 40 per group) from 21 days prepartum throughout 14 weeks post partum (p.p.). Treatments consisted of 1) supplemental Zn-Met at the dose of 30 mg Zn/kg dry matter (DM) of the total mixed ration (TMR) for the supplemented (S) group; and 2) basal TMR without supplementation for the control (C) group. Daily MY of Zn supplemented cows 30 days p.p. was in not significantly affected (P > 0.05) by the treatment. After 60 days, the MY of the S-group was significantly higher (S: 44.70 +/- 4.24 kg vs. C: 42.08 +/- 4.60 kg, respectively); (P < 0.05). Ninety days p.p. there was a highly significant difference ( P < 0.005) as well (S: 43.22 +/- 4.47 kg vs. C: 39.98 +/- 4.80 kg). Supplemented cows also produced significantly more milk fat and milk protein than the control on days 60 and 90 of the trial. There was a significant drop and a decreasing trend during the entire trial in SCC in S-group. Milk quality and udder health were positively affected by the Zn-Met treatment. This finding has an important implication for veterinary practice in an era of antibiotic reduction.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40201 - Animal and dairy science; (Animal biotechnology to be 4.4)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Veterinaria Brno
ISSN
0001-7213
e-ISSN
1801-7576
Volume of the periodical
92
Issue of the periodical within the volume
3
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
9
Pages from-to
233-241
UT code for WoS article
001153359000002
EID of the result in the Scopus database
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