Influence of organic zinc on lactation performance and somatic cell count in dairy cows

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/62157124:16170/23:43881039

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of organic zinc on lactation performance and somatic cell count in dairy cows

Popis výsledku v původním jazyce

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 &gt; 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 &lt; 0.05). Ninety days p.p. there was a highly significant difference ( P &lt; 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.

Název v anglickém jazyce

Influence of organic zinc on lactation performance and somatic cell count in dairy cows

Popis výsledku anglicky

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 &gt; 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 &lt; 0.05). Ninety days p.p. there was a highly significant difference ( P &lt; 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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

40201 - Animal and dairy science; (Animal biotechnology to be 4.4)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Acta Veterinaria Brno

ISSN

0001-7213

e-ISSN

1801-7576

Svazek periodika

92

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

233-241

Kód UT WoS článku

001153359000002

EID výsledku v databázi Scopus

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