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      Implementation of a milking system and quality management for buffalo milk at an experimental station in Rio Grande do Sul, Brazil Translated title: Implementação de um sistema de ordenha e manejo da qualidade do leite bubalino em uma estação experimental no Rio Grande do Sul, Brasil

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          Abstract

          Abstract Buffalo milk production is an activity that has grown in recent years, mainly due to the physicochemical characteristics found in this type of milk, which is the second most produced in the world. The objective of this study was to implement a milking system and monitor the identity and quality standards of buffalo milk produced at the Experimental Agronomic Station of the Federal University of Rio Grande do Sul. Samples were collected fortnightly between June and November 2021, totaling ten collections. The means obtained at the end of the monitoring were 4.84 g/100 g for fat, 4.64 g/100 g for protein, 5.06 g/100 g for lactose, 15.26 g/100 g for total solids, 10.42 g/100g for non-fat solids, 0.18 g lactic acid/100 mL of milk for acidity, 1.037 g/cm3 for density, -0.533°C for cryoscopic index, 3.5 x 105 cells/mL for somatic cell count, and 8.0 x103 CFU/ml for standard plate count. Residues of antibiotics and antiparasitics were not found. An increase in the concentration and frequency of some fatty acids was observed, after an increment in the nutritional management of the animals, in addition to predominance of palmitic acid (C16:0) and oleic acid (C18:1- cis (n9)). The results indicate a significant improvement in the quality of the milk in the assessment period, due to the corrective actions that were established, and the standard plate count showed good agricultural practices as to milk sourcing and the hygiene of the materials, being below the limits required by NI 76. The buffalo milk produced by the herd at the Experimental Station showed physicochemical and microbiological results in accordance with the legislation, being a raw material to be explored in the prospection of derivative products.

          Translated abstract

          Resumo A produção de leite bubalino é uma atividade que tem crescido nos últimos anos, principalmente devido às características físico-químicas apresentadas pelo leite, que é o segundo mais produzido no mundo. O objetivo deste trabalho foi implementar um sistema de ordenha e monitorar os padrões de identidade e qualidade do leite bubalino produzido na Estação Experimental Agronômica da Universidade Federal do Rio Grande do Sul. Amostras foram coletadas quinzenalmente entre os meses de junho e novembro de 2021, totalizando dez coletas. As médias obtidas ao final do monitoramento foram de 4,84 g/100 g para gordura, 4,64 g/100 g para proteína, 5,06 g/100g para lactose, 15,26 g/100 g sólidos totais, 10,42 g/100g para sólidos não gordurosos, 0,18 g ácido lático/100 mL de leite para acidez, 1,037 g/cm3 para densidade, -0.533°C para índice crioscópico, 3.5 x105 cél/mL para contagem de células somáticas e 8.0 x103 UFC/ml para contagem padrão em placa. Não foram identificados resíduos de antibióticos e antiparasitários. Observou-se aumento de concentração e frequência de alguns ácidos graxos, após incremento de manejo nutricional dos animais, além da predominância dos ácidos palmítico (C16:0) e oleico (C18:1- cis (n9). Os resultados indicam que houve uma melhora significativa na qualidade do leite no período avaliado, decorrente das ações corretivas que foram estabelecidas, e a contagem padrão em placa demonstrou boas práticas agropecuárias na obtenção do leite e na higienização dos materiais, estando abaixo dos limites exigidos pela IN 76. O leite de búfala produzido pelo rebanho da Estação Experimental apresentou resultados físico-químicos e microbiológicos de acordo com a legislação, sendo uma matéria-prima a ser explorada na prospecção de produtos derivados.

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          Most cited references37

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          Buffalo vs. cow milk fat globules: Size distribution, zeta-potential, compositions in total fatty acids and in polar lipids from the milk fat globule membrane

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            Composition and physico-chemical characteristics of buffalo milk with particular emphasis on lipids, proteins, minerals, enzymes and vitamins

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              The effects of feeding various forages on fatty acid composition of bovine milk fat: A review

              The nutritional image of bovine milk fat has suffered for years because of the association of saturated fatty acids and coronary heart disease. Thus the alteration of fatty acid composition has been a long-term strategy. Forages, even though containing a relatively low level of lipids, are the cheapest and often the major source of beneficial unsaturated fatty acids in ruminant diets. Recent progress in the research of factors affecting fatty acid content and composition in fresh and preserved forages and the associations between feeding such forages and milk fat profile are reviewed. Milk from cows grazed or fed fresh forage, especially from species-rich grasslands or forage legumes, has a considerably higher ratio of unsaturated to saturated fatty acids and a higher content of nutritionally beneficial trans-fatty acids (e.g. CLA, vaccenic acid) than milk from cows fed silage or hay. Grass and legume silages seem to affect the fatty acid profile more propitiously than maize silage.
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                Author and article information

                Journal
                cab
                Ciência Animal Brasileira
                Ciênc. anim. bras.
                Universidade Federal de Goiás (Goiânia, GO, Brazil )
                1518-2797
                1809-6891
                2023
                : 24
                : e-75499E
                Affiliations
                [1] Porto Alegre Rio Grande do Sul orgnameUniversidade Federal do Rio Grande do Sul Brazil
                [2] Porto Alegre Rio Grande do Sul orgnameUniversidade Federal do Rio Grande do Sul Brazil
                [3] Porto Alegre Rio Grande do Sul orgnameMinistério da Agricultura, Pecuária e Abastecimento Brazil
                Article
                S1809-68912023000100420 S1809-6891(23)02400000420
                10.1590/1809-6891v24e-75499e
                17e71428-0f93-4063-854b-6d5aa0e664b3

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 07 March 2023
                : 22 May 2023
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 38, Pages: 0
                Product

                SciELO Brazil

                Categories
                Animal Science

                Bubalus bubalis,leite cru,good agricultural practices,buffalo,raw milk,boas práticas agropecuárias,búfalo

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