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Seasonal variations of Saanen goat milk composition and the impact of climatic conditions

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2018
4735.pdf (374.0Kb)
Authors
Kljajević, Nemanja
Tomašević, Igor
Miloradović, Zorana
Nedeljković, Aleksandar
Miočinović, Jelena
Jovanović, Snežana
article (publishedVersion)
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Abstract
The aim of this research was to investigate the effect of climatic conditions and their impact on seasonal variations of physico-chemical characteristics of Saanen goat milk produced over a period of 4 years. Lactation period (early, mid and late) and year were considered as factors that influence physico-chemical composition of milk. Pearson's coefficient of correlation was calculated between the physico-chemical characteristics of milk (fat, proteins, lactose, non-fat dry matter, density, freezing point, pH, titrable acidity) and climatic condition parameters (air temperature, temperature humidity index-THI, solar radiation duration, relative humidity). Results showed that all physico-chemical characteristics of Saanen goat milk varied significantly throughout the lactation period and years. The decrease of fat, protein, non-fat dry matter and lactose content in goat milk during the mid-lactation period was more pronounced than was previously reported in the literature. The highest v...alues for these characteristics were recorded in the late lactation period. Observed variations were explained by negative correlation between THI and the physico-chemical characteristics of Saanen goat milk. This indicated that Saanen goats were very prone to heat stress, which implied the decrease of physico-chemical characteristics during hot summers.

Keywords:
Seasonal variations / Goat milk / Climatic conditions / Physico-chemical characteristics / Temperature humidity index
Source:
Journal of Food Science and Technology-Mysore, 2018, 55, 1, 299-303
Publisher:
  • Springer India, New Delhi
Funding / projects:
  • info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/46009/RS// (RS-46009)

DOI: 10.1007/s13197-017-2938-4

ISSN: 0022-1155

PubMed: 29358822

WoS: 000419562700033

Scopus: 2-s2.0-85032342022
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URI
http://aspace.agrif.bg.ac.rs/handle/123456789/4738
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Poljoprivredni fakultet

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