Evaluating Abergelle goat milk: effects of season and lactation stage on physico-chemical and microbiological quality

Abstract The study aimed to investigate the effect of season and lactation stage on physico-chemical and microbiological parameters of milk from Abergelle goat breed. From a total of 40 households (two dairy goats were taken per household), 240 milk samples were collected early in the morning. Sampl...

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Main Authors: Daniel Kahsu, Daniel Woldegebriel, Awet Estifanos, Teshome Begashaw
Format: Article
Language:English
Published: Springer 2025-05-01
Series:Discover Agriculture
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Online Access:https://doi.org/10.1007/s44279-025-00225-4
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author Daniel Kahsu
Daniel Woldegebriel
Awet Estifanos
Teshome Begashaw
author_facet Daniel Kahsu
Daniel Woldegebriel
Awet Estifanos
Teshome Begashaw
author_sort Daniel Kahsu
collection DOAJ
description Abstract The study aimed to investigate the effect of season and lactation stage on physico-chemical and microbiological parameters of milk from Abergelle goat breed. From a total of 40 households (two dairy goats were taken per household), 240 milk samples were collected early in the morning. Samples were taken from lactating goat based on lactation stage. The physico-chemical properties were analyzed using milk analyzer Lactoscan (SA, Milcotronic, Bulgaria). The microbiological analysis was done based on a standard microbiological methodology. The data were analyzed using ANOVA. Pearson correlation coefficient analysis was also done. Both season and lactation stage did not significantly (p > 0.05) affect the physico-chemical and microbiological parameters. The overall mean of fat, protein, solid-not-fat (SNF), lactose, total solids, density and electrical conductivity (EC) were 5.87 ± 0.17%, 3.46 ± 0.07%, 9.18 ± 0.12%, 5.06 ± 0.10%, 15.05 ± 0.21%, 1029.25 ± 0.32 kg/m3 and 5.68 ± 0.10 mS/cm, respectively. Somatic cell count (SCC) in the raw milk was 286.69 ± 26.5 × 103 cells/mL). Of the total milk samples, 10.3% and 6.9% had S. aureus and E. coli, respectively. Both season and lactation stage were not significantly (p > 0.05) correlated with physico-chemical and microbiological parameters. However, total solids showed significant (p < 0.001) and strong positive correlation with fat (r = 0.837) and SNF (r = 0.632). Lactose showed significant (p < 0.05) but weak negative (r = -0.344) correlation with density. More attention must be given to the husbandry and hygienic practices of the goat milk to reduce the microbial load thereby enhance the quality and safety of the milk.
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spelling doaj-art-2c1be5f452404e18b22d0da1114cb0b92025-08-20T03:48:06ZengSpringerDiscover Agriculture2731-95982025-05-013111210.1007/s44279-025-00225-4Evaluating Abergelle goat milk: effects of season and lactation stage on physico-chemical and microbiological qualityDaniel Kahsu0Daniel Woldegebriel1Awet Estifanos2Teshome Begashaw3Department of Animal, Rangeland and Wildlife Sciences, College of Dryland Agriculture and Natural Resources, Mekelle UniversityDepartment of Animal, Rangeland and Wildlife Sciences, College of Dryland Agriculture and Natural Resources, Mekelle UniversityTigray Agricultural Research InstituteDepartment of Animal, Rangeland and Wildlife Sciences, College of Dryland Agriculture and Natural Resources, Mekelle UniversityAbstract The study aimed to investigate the effect of season and lactation stage on physico-chemical and microbiological parameters of milk from Abergelle goat breed. From a total of 40 households (two dairy goats were taken per household), 240 milk samples were collected early in the morning. Samples were taken from lactating goat based on lactation stage. The physico-chemical properties were analyzed using milk analyzer Lactoscan (SA, Milcotronic, Bulgaria). The microbiological analysis was done based on a standard microbiological methodology. The data were analyzed using ANOVA. Pearson correlation coefficient analysis was also done. Both season and lactation stage did not significantly (p > 0.05) affect the physico-chemical and microbiological parameters. The overall mean of fat, protein, solid-not-fat (SNF), lactose, total solids, density and electrical conductivity (EC) were 5.87 ± 0.17%, 3.46 ± 0.07%, 9.18 ± 0.12%, 5.06 ± 0.10%, 15.05 ± 0.21%, 1029.25 ± 0.32 kg/m3 and 5.68 ± 0.10 mS/cm, respectively. Somatic cell count (SCC) in the raw milk was 286.69 ± 26.5 × 103 cells/mL). Of the total milk samples, 10.3% and 6.9% had S. aureus and E. coli, respectively. Both season and lactation stage were not significantly (p > 0.05) correlated with physico-chemical and microbiological parameters. However, total solids showed significant (p < 0.001) and strong positive correlation with fat (r = 0.837) and SNF (r = 0.632). Lactose showed significant (p < 0.05) but weak negative (r = -0.344) correlation with density. More attention must be given to the husbandry and hygienic practices of the goat milk to reduce the microbial load thereby enhance the quality and safety of the milk.https://doi.org/10.1007/s44279-025-00225-4SeasonLactation stageAbergelle goatPhysico-chemicalMicrobiological
spellingShingle Daniel Kahsu
Daniel Woldegebriel
Awet Estifanos
Teshome Begashaw
Evaluating Abergelle goat milk: effects of season and lactation stage on physico-chemical and microbiological quality
Discover Agriculture
Season
Lactation stage
Abergelle goat
Physico-chemical
Microbiological
title Evaluating Abergelle goat milk: effects of season and lactation stage on physico-chemical and microbiological quality
title_full Evaluating Abergelle goat milk: effects of season and lactation stage on physico-chemical and microbiological quality
title_fullStr Evaluating Abergelle goat milk: effects of season and lactation stage on physico-chemical and microbiological quality
title_full_unstemmed Evaluating Abergelle goat milk: effects of season and lactation stage on physico-chemical and microbiological quality
title_short Evaluating Abergelle goat milk: effects of season and lactation stage on physico-chemical and microbiological quality
title_sort evaluating abergelle goat milk effects of season and lactation stage on physico chemical and microbiological quality
topic Season
Lactation stage
Abergelle goat
Physico-chemical
Microbiological
url https://doi.org/10.1007/s44279-025-00225-4
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AT awetestifanos evaluatingabergellegoatmilkeffectsofseasonandlactationstageonphysicochemicalandmicrobiologicalquality
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