1
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Nguyen DD, Solah V, Daubney S, Jani S. Determination of Ca, P, K, Na, and Mg in Australian Retail Pasteurised Milk Using Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP OES). JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2024; 2024:4417607. [PMID: 39161364 PMCID: PMC11333130 DOI: 10.1155/2024/4417607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 06/07/2024] [Accepted: 06/21/2024] [Indexed: 08/21/2024]
Abstract
A rapid and simple inductively coupled plasma atomic emission spectrometry (ICP OES) method was developed and validated for the determination of macroelements including calcium (Ca), phosphorus (P), potassium (K), sodium (Na), and magnesium (Mg) in Australian retail pasteurised milk. The milk samples were digested using the mixture of 70% HNO3 and 30% H2O2 (2 : 1, v/v) in an open-tube digester block at 120°C for 4 h. The validated ICP OES method showed good linearity for all elements (R 2 > 0.9993). The method limits of quantification (LOQ) for Ca, P, K, Na, and Mg were 19.85, 8.97, 100.8, 41.92, and 11.56 µg·g-1, respectively. Recoveries were in the range of 91.54-116.0%. Repeatability and interday reproducibility expressed as the relative standard deviation (% RSD) was below 5.0%. The contents of macroelements in 6 retail pasteurised milk samples were between 1099.32 and 1348.65 µg·g-1 (Ca), 914.01 and 1091.21 µg·g-1 (P), 1362.76 and 1549.74 µg·g-1 (K), 288.89 and 323.22 µg·g-1 (Na), and 97.62 and 110.57 µg·g-1 (Mg). Principal component analysis (PCA) revealed that retail pasteurised milk samples were distinctly separated into four groups on the first two principal components (PCs). The difference in the macroelement content between milk brands might be affected by milk regions.
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Affiliation(s)
- Duc Doan Nguyen
- Food Science and NutritionCentre for Crop and Food InnovationFood Futures InstituteMurdoch University, Murdoch Western Australia 6150, Australia
- Food Science and NutritionSchool of Medical, Molecular & Forensic SciencesCollege of Environmental & Life SciencesMurdoch University, Murdoch Western Australia 6150, Australia
| | - Vicky Solah
- Food Science and NutritionCentre for Crop and Food InnovationFood Futures InstituteMurdoch University, Murdoch Western Australia 6150, Australia
- Food Science and NutritionSchool of Medical, Molecular & Forensic SciencesCollege of Environmental & Life SciencesMurdoch University, Murdoch Western Australia 6150, Australia
| | - Suzanne Daubney
- Bannister Downs Dairy, Northcliffe Western Australia 6262, Australia
| | - Saijel Jani
- School of Maths, Statistics, Chemistry and PhysicsCollege of Science, Technology, Engineering, and MathematicsMurdoch University, Murdoch Western Australia 6150, Australia
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2
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Singh A, Kumar A, Thakur MS, Khare V, Jain A, Tiwari SP. Genetic analysis of milk minerals in dairy cattle: a review. J Appl Genet 2024; 65:375-381. [PMID: 38286942 DOI: 10.1007/s13353-024-00832-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 12/22/2023] [Accepted: 01/19/2024] [Indexed: 01/31/2024]
Abstract
Mineral composition in milk can affect its nutritional as well as physio-chemical properties of milk and is considered an important trait in the evaluation of milk quality. The composition and concentration of milk minerals could be altered with natural source of variation including nutrition and genetics. The effect of diet on milk minerals is well studied. However, genetic effects on the milk minerals have recently gained the attention. This review provides an overview of the genetic variation of milk minerals, and the genomic regions associated with mineral concentration in the milk are also discussed. The difference of milk minerals between breeds and the genetic parameters including heritability estimates and correlation among minerals indicates that milk minerals are under strong genetic control. Recently, the genome-wide association study (GWAS) has explored several regions associated with milk minerals and thus provides a new genetic source for improving the milk quality through genomics-assisted breeding. Hence, a combination of the qualitative and molecular approaches can be exploited to improving the nutritional quality of cattle milk in terms of its mineral composition.
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Affiliation(s)
- Akansha Singh
- College of Veterinary Science and Animal Husbandry, NDVSU, Jabalpur, 482001, M.P, India.
| | - Amit Kumar
- ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, 243122, U.P., India
| | - Mohan Singh Thakur
- College of Veterinary Science and Animal Husbandry, NDVSU, Jabalpur, 482001, M.P, India
| | - Vaishali Khare
- College of Veterinary Science and Animal Husbandry, NDVSU, Jabalpur, 482001, M.P, India
| | - Asit Jain
- College of Veterinary Science and Animal Husbandry, NDVSU, Jabalpur, 482001, M.P, India
| | - Sita Prasad Tiwari
- Nanaji Deshmukh Veterinary Science University, Jabalpur, 482004, M.P., India
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3
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Haw SR, Adkins PRF, Bernier Gosselin V, Poock SE, Middleton JR. Intramammary infections in lactating Jersey cows: Prevalence of microbial organisms and association with milk somatic cell count and persistence of infection. J Dairy Sci 2024; 107:3157-3167. [PMID: 37949401 DOI: 10.3168/jds.2023-23848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 10/29/2023] [Indexed: 11/12/2023]
Abstract
There are limited data available regarding pathogens causing intramammary infections (IMI) in Jersey cows. The objectives of this study were to characterize the prevalence of IMI caused by different microorganisms in lactating Jersey cattle and evaluate the associations among microbes and somatic cell count (SCC) and persistence of IMI. This prospective, observational, longitudinal study included lactating Jersey cows (n = 753) from 4 farms within a 415 km radius of Columbia, Missouri. Quarter foremilk samples were aseptically collected monthly for 3 consecutive months. Microorganisms were identified using aerobic milk culture and MALDI-TOF mass spectrometry. A commercial laboratory measured SCC using flow cytometry. Milk culture results were used to classify single microorganism infections as persistent (same microorganism species identified at first sampling and one other sampling) or nonpersistent infection. Mixed models were built to evaluate the associations between IMI status and SCC natural logarithm (lnSCC), as well as persistence and lnSCC. Overall, staphylococci were the most commonly isolated microorganisms among the 7,370 quarter-level milk samples collected. Median prevalence (using all 3 samplings) of specific microbes varied among farms; however, Staphylococcus chromogenes was a common species found at all farms. The most common microbial species that persisted were Staph. chromogenes, Staphylococcus aureus, Staphylococcus simulans, and Streptococcus uberis. Streptococcus dysgalactiae and Staph. aureus were the IMI associated with the most inflammation based on lnSCC. The small number of herds included in this study with the large variation in herd type limits the generalizability of the data. However, results of this study seem to be similar to those of previous studies in other breeds, suggesting management factors are more important than breed-specific differences when evaluating causes of IMI and associated subclinical mastitis.
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Affiliation(s)
- Samantha R Haw
- Department of Veterinary Medicine and Surgery, University of Missouri, Columbia, MO 65211
| | - P R F Adkins
- Department of Veterinary Medicine and Surgery, University of Missouri, Columbia, MO 65211.
| | - V Bernier Gosselin
- Clinic for Ruminants, Vetsuisse Faculty, University of Bern, Bern 3012, Switzerland
| | - S E Poock
- Department of Veterinary Medicine and Surgery, University of Missouri, Columbia, MO 65211
| | - J R Middleton
- Department of Veterinary Medicine and Surgery, University of Missouri, Columbia, MO 65211
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4
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Guerra A, Costa A, De Marchi M, Righi F, Simoni M, Manuelian CL. The effects of dietary iodine content, milking system, and farming practices on milk iodine concentration and quality traits. J Dairy Sci 2024; 107:2143-2155. [PMID: 37977439 DOI: 10.3168/jds.2023-23989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 10/29/2023] [Indexed: 11/19/2023]
Abstract
Various management practices can influence milk quality traits in dairy cattle. As an example, an increasing investment in automatic milking system to substitute milking parlors has been observed in the last 2 decades in dairy farms which could have affected certain bulk milk quality traits. What is more, milking practices can also affect certain milk parameters; as an example, teat disinfectants containing I are used in commercial farms where pre- or postdipping is performed, leading to presence of some I in the bulk milk. However, this trace mineral is also supplied in cows' diet to fulfill their nutritional requirements, partly contributing to the milk I final concentration. Therefore, the aim of this study was to evaluate the sources of variation of milk I along with other traditional milk quality traits. A total of 91 dairy farms in northeastern Italy were enrolled in the study. In each farm, diet and bulk milk samples were collected on the same day for chemical analysis. Concentration of I, in particular, was determined in both milk and feed with gold standard. Pearson correlations were calculated among the traits available for milk and diet, and a general linear model was used to test significance of fixed effects (feeding system, milking system, farming system, herd size, herd stage of lactation, and sampling month) on milk quality traits including the I concentration. In the case of milk I, diet I and presence of I-based predipping and postdipping teat disinfect application were also tested as fixed effects. Results showed a positive linear correlation between milk and diet I content (correlation coefficient [r] = 0.78). Although milk I was also positively correlated with lactose content (r = 0.25), dietary I was not correlated with other milk traits. Milk I content was significantly affected by dietary I, I-based predipping teat disinfectant application, and herd composition. Compared with conventional farms, organic farms showed lower protein content and greater somatic cell score (SCS) but similar milk I. Milking system significantly affected only lactose content and SCS of milk. Sampling month was only significant for milk urea nitrogen and herd composition, feeding system, herd size, and herd average days in milk did not modify milk gross composition and SCS. In conclusion, dietary supply of I is the main factor affecting milk I concentration and findings suggest that I level in milk can be naturally improved in dairy cows by modulating the I content in the diet administered. However, further research is needed to evaluate the effect of I-based sanitizers on milk I.
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Affiliation(s)
- Alberto Guerra
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Legnaro (PD), Italy
| | - Angela Costa
- Department of Veterinary Medical Sciences, University of Bologna, 40064 Ozzano dell'Emilia (BO), Italy
| | - Massimo De Marchi
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Legnaro (PD), Italy
| | - Federico Righi
- Department of Veterinary Science, University of Parma, 43126 Parma, Italy
| | - Marica Simoni
- Department of Veterinary Science, University of Parma, 43126 Parma, Italy.
| | - Carmen L Manuelian
- Group of Ruminant Research (G2R), Department of Animal and Food Sciences, Universitat Autònoma de Barcelona (UAB), 08193, Bellaterra, Spain
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5
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Muñoz-Alvarez KY, Gutiérrez-Aguilar R, Frigolet ME. Metabolic effects of milk fatty acids: A literature review. NUTR BULL 2024; 49:19-39. [PMID: 38226553 DOI: 10.1111/nbu.12657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 12/07/2023] [Accepted: 12/18/2023] [Indexed: 01/17/2024]
Abstract
Milk and dairy products are known to have a significant role in human development and tissue maintenance due to their high nutritional value. With the higher incidence of obesity and metabolic diseases, nutrition and public health authorities have recommended the intake of fat-free or low-fat dairy due to the saturated fatty acid content of whole-fat products and their effect on serum cholesterol levels. However, recent studies have questioned the association between milk fat consumption and cardiometabolic risk. This literature review aims to compile the scientific evidence of the metabolic effects of milk fatty acids in clinical and basic research studies, as well as their relationship with metabolic disorders and gut microbiota composition. Research shows that various milk fatty acids exert effects on metabolic alterations (obesity, type 2 diabetes and cardiovascular diseases) by modifying glucose homeostasis, inflammation and lipid profile-related factors. Additionally, recent studies have associated the consumption of milk fatty acids with the production of metabolites and the promotion of healthy gut microbiota. From mainly observational studies, evidence suggests that milk and dairy fatty acids are not directly linked to cardiometabolic risk, but further controlled research is necessary to clarify such findings and to assess whether dietary recommendations to choose low-fat dairy foods are necessary for the population for the prevention of obesity and cardiometabolic disease.
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Affiliation(s)
- Karla Y Muñoz-Alvarez
- Laboratorio de Investigación en Enfermedades Metabólicas: Obesidad y Diabetes, Hospital Infantil de México 'Federico Gómez' (HIMFG), Mexico City, Mexico
| | - Ruth Gutiérrez-Aguilar
- Laboratorio de Investigación en Enfermedades Metabólicas: Obesidad y Diabetes, Hospital Infantil de México 'Federico Gómez' (HIMFG), Mexico City, Mexico
- División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico
| | - María E Frigolet
- Laboratorio de Investigación en Enfermedades Metabólicas: Obesidad y Diabetes, Hospital Infantil de México 'Federico Gómez' (HIMFG), Mexico City, Mexico
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Linehan K, Patangia DV, Ross RP, Stanton C. Production, Composition and Nutritional Properties of Organic Milk: A Critical Review. Foods 2024; 13:550. [PMID: 38397527 PMCID: PMC10887702 DOI: 10.3390/foods13040550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 01/27/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
Milk is one of the most valuable products in the food industry with most milk production throughout the world being carried out using conventional management, which includes intensive and traditional systems. The intensive use of fertilizers, antibiotics, pesticides and concerns regarding animal health and the environment have given increasing importance to organic dairy and dairy products in the last two decades. This review aims to compare the production, nutritional, and compositional properties of milk produced by conventional and organic dairy management systems. We also shed light on the health benefits of milk and the worldwide scenario of the organic dairy production system. Most reports suggest milk has beneficial health effects with very few, if any, adverse effects reported. Organic milk is reported to confer additional benefits due to its lower omega-6-omega-3 ratio, which is due to the difference in feeding practices, with organic cows predominantly pasture fed. Despite the testified animal, host, and environmental benefits, organic milk production is difficult in several regions due to the cost-intensive process and geographical conditions. Finally, we offer perspectives for a better future and highlight knowledge gaps in the organic dairy management system.
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Affiliation(s)
- Kevin Linehan
- Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland; (K.L.); (D.V.P.)
- APC Microbiome Ireland, University College Cork, T12 Y120 Cork, Ireland;
- School of Microbiology, University College Cork, T12 XF62 Cork, Ireland
| | - Dhrati V. Patangia
- Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland; (K.L.); (D.V.P.)
- APC Microbiome Ireland, University College Cork, T12 Y120 Cork, Ireland;
- School of Microbiology, University College Cork, T12 XF62 Cork, Ireland
| | - Reynolds Paul Ross
- APC Microbiome Ireland, University College Cork, T12 Y120 Cork, Ireland;
- School of Microbiology, University College Cork, T12 XF62 Cork, Ireland
| | - Catherine Stanton
- Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland; (K.L.); (D.V.P.)
- APC Microbiome Ireland, University College Cork, T12 Y120 Cork, Ireland;
- VistaMilk Research Centre, Teagasc Moorepark, Fermoy, P61 C996 Cork, Ireland
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7
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Newton EE, Pétursdóttir ÁH, Beauclercq S, Clarke J, Desnica N, Stergiadis S. Variation in macrominerals and trace elements in cows' retail milk and implications for consumers nutrition. Food Chem 2023; 418:135809. [PMID: 36963140 DOI: 10.1016/j.foodchem.2023.135809] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/17/2023] [Accepted: 02/25/2023] [Indexed: 03/06/2023]
Abstract
Based on previous farm-level studies, this study hypothesised that production system (conventional, CON; organic, ORG; channel island, CHA) and season would cause variation in the concentrations of macrominerals and trace elements in retail milk. On average, milk retained its status as an excellent source of Ca, P, I, and Mo across different demographics, and a very good source of K, Mg, and Zn for children. Compared with CON and ORG, CHA milk contained higher concentrations of Ca, Mg, P, Cu, Mn, and Zn; and lower concentrations of K and I. Macrominerals did not show a clear seasonal pattern but trace elements were all at lower concentrations during the typical grazing season. Variation in mineral concentrations can have implications to Ca and P supply in children, and I and Zn supply across different consumer demographics; while the seasonal variation was more pronounced than that associated with production system.
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Affiliation(s)
- Eric E Newton
- University of Reading, School of Agriculture, Policy and Development, Department of Animal Sciences, PO Box 237, Earley Gate, Reading RG6 6EU, United Kingdom
| | | | - Stephane Beauclercq
- University of Reading, School of Agriculture, Policy and Development, Department of Animal Sciences, PO Box 237, Earley Gate, Reading RG6 6EU, United Kingdom
| | - James Clarke
- University of Reading, School of Agriculture, Policy and Development, Department of Animal Sciences, PO Box 237, Earley Gate, Reading RG6 6EU, United Kingdom
| | | | - Sokratis Stergiadis
- University of Reading, School of Agriculture, Policy and Development, Department of Animal Sciences, PO Box 237, Earley Gate, Reading RG6 6EU, United Kingdom.
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8
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Khoshbin Z, Zahraee H, Zamanian J, Verdian A, Ramezani M, Alibolandi M, Abnous K, Taghdisi SM. A label-free liquid crystal-assisted aptasensor for trace level detection of tobramycin in milk and chicken egg samples. Anal Chim Acta 2022; 1236:340588. [DOI: 10.1016/j.aca.2022.340588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022]
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9
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Visentin E, Niero G, Cassandro M, Penasa M, De Marchi M. Assessment of the
ED‐XRF
technique to quantify mineral elements in nonlyophilised milk and cheese. INT J DAIRY TECHNOL 2022. [DOI: 10.1111/1471-0307.12902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Elena Visentin
- Department of Agronomy, Food, Natural resources, Animals and Environment University of Padova Viale dell'Università 16 35020 Legnaro (PD) Italy
| | - Giovanni Niero
- Department of Agronomy, Food, Natural resources, Animals and Environment University of Padova Viale dell'Università 16 35020 Legnaro (PD) Italy
| | - Martino Cassandro
- Department of Agronomy, Food, Natural resources, Animals and Environment University of Padova Viale dell'Università 16 35020 Legnaro (PD) Italy
- Associazione Nazionale Allevatori della Razza Frisona Bruna e Jersey Italiana Via Bergamo 292 26100 Cremona Italy
| | - Mauro Penasa
- Department of Agronomy, Food, Natural resources, Animals and Environment University of Padova Viale dell'Università 16 35020 Legnaro (PD) Italy
| | - Massimo De Marchi
- Department of Agronomy, Food, Natural resources, Animals and Environment University of Padova Viale dell'Università 16 35020 Legnaro (PD) Italy
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Duarte CM, Mota J, Assunção R, Martins C, Ribeiro AC, Lima A, Raymundo A, Nunes MC, Ferreira RB, Sousa I. New Alternatives to Milk From Pulses: Chickpea and Lupin Beverages With Improved Digestibility and Potential Bioactivities for Human Health. Front Nutr 2022; 9:852907. [PMID: 35911116 PMCID: PMC9333060 DOI: 10.3389/fnut.2022.852907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 06/08/2022] [Indexed: 11/13/2022] Open
Abstract
There is a strong demand for plant-based milk substitutes, often low in protein content (<1.5% w/v). Protein-rich pulse seeds and the right processing technologies make it possible to make relevant choices. The major objective of this study was to assess the impact of processing on the nutritional characteristics of beverages with a high impact on health, in particular on digestibility and specific bioactivities. The results suggest that pulse beverages are as high in protein content (3.24% w/v for chickpea and 4.05% w/v for lupin) as cow’s milk. The anti-nutrient level characteristics of pulses have been considerably reduced by strategic processing. However, when present in small quantities, some of these anti-nutritional factors may have health benefits. Controlling processing conditions play a crucial role in this fine balance as a tool to take advantage of their health benefits. There is evidence of protein hydrolysis by in vitro digestion and limited bioaccessibility of minerals. In addition to being highly digestible, lupin and chickpea beverages have anti-inflammatory and anti-carcinogenic potential evaluated through the inhibition of metalloproteinase MMP-9.
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Affiliation(s)
- Carla Margarida Duarte
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, University of Lisbon, Lisbon, Portugal
| | - Joana Mota
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, University of Lisbon, Lisbon, Portugal
| | - Ricardo Assunção
- IUEM, Instituto Universitário Egas Moniz, Egas Moniz-Cooperativa de Ensino Superior, CRL, Costa da Caparica, Portugal
- Department of Food and Nutrition, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal
- CESAM, Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal
| | - Carla Martins
- Department of Food and Nutrition, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal
- NOVA National School of Public Health, Public Health Research Center, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Ana Cristina Ribeiro
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, University of Lisbon, Lisbon, Portugal
- Faculdade de Farmácia de Lisboa, University of Lisbon, Lisbon, Portugal
| | - Ana Lima
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, University of Lisbon, Lisbon, Portugal
- Faculty of Veterinary Medicine, Lusófona University, Lisbon, Portugal
| | - Anabela Raymundo
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, University of Lisbon, Lisbon, Portugal
| | - Maria Cristiana Nunes
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, University of Lisbon, Lisbon, Portugal
| | - Ricardo Boavida Ferreira
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, University of Lisbon, Lisbon, Portugal
| | - Isabel Sousa
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, University of Lisbon, Lisbon, Portugal
- *Correspondence: Isabel Sousa,
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11
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Deniz A, Aksoy K. Use of organic phosphorous butafosfan and vitamin B12 combination in transition dairy cows. VET MED-CZECH 2022; 67:334-353. [PMID: 39100134 PMCID: PMC11295879 DOI: 10.17221/56/2021-vetmed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 02/09/2022] [Indexed: 08/06/2024] Open
Abstract
Phosphorus is critical for life and an indispensable element for biologically occurring organic molecules such as DNA, ATP, and phosphoproteomes. Butafosfan is a synthetically produced organic phosphorous (phosphonic acid) compound that contains 17.3% phosphorus. It does not belong to the group of biologically occurring organic phosphorous compounds. Butafosfan has been used in many animal species as a metabolic stimulant interfering with energy metabolism. Vitamin B12 (VB12) is a unique cobalt-containing vitamin. It functions as a cofactor for the enzymes methionine synthase and methyl-malonyl-CoA mutase. It is necessary for the conversion of propionate into succinyl-CoA in ruminants. A combination of butafosfan and VB12 (iBC) has been available for veterinary use since 1958 and the first publication appeared in the 1970s in cows. However, the first molecular biological studies about its mode of action appeared in early 2000s. Recent studies revealed that iBC has significant effects on carbohydrate and lipid metabolism. Investigations between 1970 and 1994 focused mainly on cows at risk of metabolic and reproductive disease in the dry period. Studies as of 2000 investigated its efficacy for the prevention and treatment of subclinical and secondary ketosis, adjunctive/supportive therapy for displaced abomasum operation, milk fever, improvement of postoperative rumen activity, uterus involution, and mastitis in transition dairy cows.
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Affiliation(s)
- Abdulkerim Deniz
- Free Researcher – Biochemist, Nisbetiye Mah. Beşiktaş, İstanbul, Turkey
| | - Kemal Aksoy
- Department of Internal Medicine, Faculty of Veterinary Medicine, University of Mugla Sitki Koçman, Kötekli, Mugla, Turkey
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12
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Manuelian C, Vigolo V, Burbi S, Righi F, Simoni M, De Marchi M. Detailed comparison between organic and conventional milk from Holstein-Friesian dairy herds in Italy. J Dairy Sci 2022; 105:5561-5572. [DOI: 10.3168/jds.2021-21465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 03/10/2022] [Indexed: 11/19/2022]
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13
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Singh A, Kumar A, Gondro C, Pandey AK, Dutt T, Mishra BP. Genome Wide Scan to Identify Potential Genomic Regions Associated With Milk Protein and Minerals in Vrindavani Cattle. Front Vet Sci 2022; 9:760364. [PMID: 35359668 PMCID: PMC8960298 DOI: 10.3389/fvets.2022.760364] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 02/11/2022] [Indexed: 12/02/2022] Open
Abstract
In this study, genome-wide association study (GWAS) was conducted for identifying significantly associated genomic regions/SNPs with milk protein and minerals in the 96 taurine-indicine crossbred (Vrindavani) cows using 50K SNP Chip. After quality control, a total of 41,427 SNPs were retained and were further analyzed using a single-SNP additive linear model. Lactation stage, parity, test day milk yield and proportion of exotic inheritance were included as fixed effects in GWAS model. Across all traits, 13 genome-wide significant (p < 1.20 x 10−06) and 49 suggestive significant (p < 2.41 x 10−05) SNPs were identified which were located on 18 different autosomes. The strongest association for protein percentage, calcium (Ca), phosphorus (P), copper (Cu), zinc (Zn), and iron (Fe) were found on BTA 18, 7, 2, 3, 14, and 2, respectively. No significant SNP was detected for manganese (Mn). Several significant SNPs identified were within or close proximity to CDH13, BHLHE40, EDIL3, HAPLN1, INHBB, USP24, ZFAT, and IKZF2 gene, respectively. Enrichment analysis of the identified candidate genes elucidated biological processes, cellular components, and molecular functions involved in metal ion binding, ion transportation, transmembrane protein, and signaling pathways. This study provided a groundwork to characterize the molecular mechanism for the phenotypic variation in milk protein percentage and minerals in crossbred cattle. Further work is required on a larger sample size with fine mapping of identified QTL to validate potential candidate regions.
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Affiliation(s)
- Akansha Singh
- Animal Genetics Division, Indian Council of Agricultural Research-Indian Veterinary Research Institute, Bareilly, India
| | - Amit Kumar
- Animal Genetics Division, Indian Council of Agricultural Research-Indian Veterinary Research Institute, Bareilly, India
- *Correspondence: Amit Kumar
| | - Cedric Gondro
- Department of Animal Science, Michigan State University, East Lansing, MI, United States
| | - A. K. Pandey
- Animal Genetics Division, Indian Council of Agricultural Research-Indian Veterinary Research Institute, Bareilly, India
| | - Triveni Dutt
- Livestock Production and Management, Indian Council of Agricultural Research-Indian Veterinary Research Institute, Bareilly, India
| | - B. P. Mishra
- Division of Animal Biotechnology, Indian Council of Agricultural Research-Indian Veterinary Research Institute, Bareilly, India
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Niero G, Franzoi M, Manuelian CL, Visentin G, Penasa M, De Marchi M. Protein profile of cow milk from multibreed herds and its relationship with milk coagulation properties. ITALIAN JOURNAL OF ANIMAL SCIENCE 2021. [DOI: 10.1080/1828051x.2021.1996288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Giovanni Niero
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente, University of Padua, Legnaro, Italy
| | - Marco Franzoi
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente, University of Padua, Legnaro, Italy
| | - Carmen L. Manuelian
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente, University of Padua, Legnaro, Italy
| | - Giulio Visentin
- Dipartimento di Scienze Mediche Veterinarie, Alma Mater Studiorum University of Bologna, Ozzano dell’Emilia, Italy
| | - Mauro Penasa
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente, University of Padua, Legnaro, Italy
| | - Massimo De Marchi
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente, University of Padua, Legnaro, Italy
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Stergiadis S, Qin N, Faludi G, Beauclercq S, Pitt J, Desnica N, Pétursdóttir ÁH, Newton EE, Angelidis AE, Givens I, Humphries DJ, Gunnlaugsdóttir H, Juniper DT. Mineral Concentrations in Bovine Milk from Farms with Contrasting Grazing Management. Foods 2021; 10:2733. [PMID: 34829015 PMCID: PMC8620383 DOI: 10.3390/foods10112733] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/03/2021] [Accepted: 11/04/2021] [Indexed: 11/19/2022] Open
Abstract
Thirty conventional and twenty-four organic dairy farms were divided into equal numbers within system groups: high-pasture, standard-pasture, and low-pasture groups. Milk samples were collected monthly for 12 consecutive months. Milk from high-pasture organic farms contained less fat and protein than standard- and low-pasture organic farms, but more lactose than low-pasture organic farms. Grazing, concentrate feed intake and the contribution of non-Holstein breeds were the key drivers for these changes. Milk Ca and P concentrations were lower in standard-pasture conventional farms than the other conventional groups. Milk from low-pasture organic farms contained less Ca than high- and standard-pasture organic farms, while high-pasture organic farms produced milk with the highest Sn concentration. Differences in mineral concentrations were driven by the contribution of non-Holstein breeds, feeding practices, and grazing activity; but due to their relatively low numerical differences between groups, the subsequent impact on consumers' dietary mineral intakes would be minor.
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Affiliation(s)
- Sokratis Stergiadis
- Department of Animal Sciences, School of Agriculture, Policy and Development, University of Reading, P.O. Box 237, Earley Gate, Reading RG6 6EU, UK; (N.Q.); (G.F.); (S.B.); (J.P.); (E.E.N.); (A.E.A.); (D.T.J.)
| | - Nanbing Qin
- Department of Animal Sciences, School of Agriculture, Policy and Development, University of Reading, P.O. Box 237, Earley Gate, Reading RG6 6EU, UK; (N.Q.); (G.F.); (S.B.); (J.P.); (E.E.N.); (A.E.A.); (D.T.J.)
| | - Gergely Faludi
- Department of Animal Sciences, School of Agriculture, Policy and Development, University of Reading, P.O. Box 237, Earley Gate, Reading RG6 6EU, UK; (N.Q.); (G.F.); (S.B.); (J.P.); (E.E.N.); (A.E.A.); (D.T.J.)
- Georgikon Campus, Szent Istvan University, Deák Ferenc u. 16, H-8360 Keszthely, Hungary
| | - Stephane Beauclercq
- Department of Animal Sciences, School of Agriculture, Policy and Development, University of Reading, P.O. Box 237, Earley Gate, Reading RG6 6EU, UK; (N.Q.); (G.F.); (S.B.); (J.P.); (E.E.N.); (A.E.A.); (D.T.J.)
| | - Joe Pitt
- Department of Animal Sciences, School of Agriculture, Policy and Development, University of Reading, P.O. Box 237, Earley Gate, Reading RG6 6EU, UK; (N.Q.); (G.F.); (S.B.); (J.P.); (E.E.N.); (A.E.A.); (D.T.J.)
| | - Natasa Desnica
- Matís Ltd., Vinlandsleid 12, 113 Reykjavik, Iceland; (N.D.); (Á.H.P.); (H.G.)
| | | | - Eric E. Newton
- Department of Animal Sciences, School of Agriculture, Policy and Development, University of Reading, P.O. Box 237, Earley Gate, Reading RG6 6EU, UK; (N.Q.); (G.F.); (S.B.); (J.P.); (E.E.N.); (A.E.A.); (D.T.J.)
| | - Angelos E. Angelidis
- Department of Animal Sciences, School of Agriculture, Policy and Development, University of Reading, P.O. Box 237, Earley Gate, Reading RG6 6EU, UK; (N.Q.); (G.F.); (S.B.); (J.P.); (E.E.N.); (A.E.A.); (D.T.J.)
| | - Ian Givens
- Institute for Food, Nutrition and Health, University of Reading, P.O. Box 237, Earley Gate, Reading RG6 6EU, UK;
| | - David J. Humphries
- Centre for Dairy Research, School of Agriculture, Policy and Development, University of Reading, Hall Farm House, Church Ln, Reading RG2 9HX, UK;
| | - Helga Gunnlaugsdóttir
- Matís Ltd., Vinlandsleid 12, 113 Reykjavik, Iceland; (N.D.); (Á.H.P.); (H.G.)
- Faculty of Food Science and Nutrition, School of Health Sciences, University Iceland, 102 Reykjavik, Iceland
| | - Darren T. Juniper
- Department of Animal Sciences, School of Agriculture, Policy and Development, University of Reading, P.O. Box 237, Earley Gate, Reading RG6 6EU, UK; (N.Q.); (G.F.); (S.B.); (J.P.); (E.E.N.); (A.E.A.); (D.T.J.)
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Christophe OS, Grelet C, Bertozzi C, Veselko D, Lecomte C, Höeckels P, Werner A, Auer FJ, Gengler N, Dehareng F, Soyeurt H. Multiple Breeds and Countries' Predictions of Mineral Contents in Milk from Milk Mid-Infrared Spectrometry. Foods 2021; 10:2235. [PMID: 34574345 PMCID: PMC8470342 DOI: 10.3390/foods10092235] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/10/2021] [Accepted: 09/17/2021] [Indexed: 01/13/2023] Open
Abstract
Measuring the mineral composition of milk is of major interest in the dairy sector. This study aims to develop and validate robust multi-breed and multi-country models predicting the major minerals through milk mid-infrared spectrometry using partial least square regressions. A total of 1281 samples coming from five countries were analyzed to obtain spectra and in ICP-AES to measure the mineral reference contents. Models were built from records coming from four countries (n = 1181) and validated using records from the fifth country, Austria (n = 100). The importance of including local samples was tested by integrating 30 Austrian samples in the model while validating with the remaining 70 samples. The best performances were achieved using this second set of models, confirming the need to cover the spectral variability of a country before making a prediction. Validation root mean square errors were 54.56, 63.60, 7.30, 59.87, and 152.89 mg/kg for Na, Ca, Mg, P, and K, respectively. The built models were applied on the Walloon milk recording large-scale spectral database, including 3,510,077. The large-scale predictions on this dairy herd improvement database provide new insight regarding the minerals' variability in the population, as well as the effect of parity, stage of lactation, breeds, and seasons.
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Affiliation(s)
- Octave S. Christophe
- Walloon Agricultural Research Center (CRA-W), 24 Chaussée de Namur, 5030 Gembloux, Belgium; (O.S.C.); (C.G.)
| | - Clément Grelet
- Walloon Agricultural Research Center (CRA-W), 24 Chaussée de Namur, 5030 Gembloux, Belgium; (O.S.C.); (C.G.)
| | - Carlo Bertozzi
- Elevéo Asbl, AWE Group, 4, Rue des Champs Elysées, 5590 Ciney, Belgium;
| | - Didier Veselko
- Comité du Lait de Battice Route de Herve 104, 4651 Battice, Belgium;
| | - Christophe Lecomte
- France Conseil Elevage, Maison du Lait, 42 Rue de Chateaudun, 75009 Paris, France;
| | - Peter Höeckels
- Landeskontrollverband Nordrhein-Westfalen e.V., Bischofstraße 85, 47809 Krefeld, Germany;
| | - Andreas Werner
- LKV Baden Württemberg, Heinrich-Baumann Str. 1-3, 70190 Stuttgart, Germany;
| | - Franz-Josef Auer
- LKV Austria Gemeinnützige GmbH, Dresdnerstr. 89/B1/18, 1200 Wien, Austria;
| | - Nicolas Gengler
- Gembloux Agro-Bio Tech, TERRA Teaching and Research Centre, University of Liège, 5030 Gembloux, Belgium; (N.G.); (H.S.)
| | - Frédéric Dehareng
- Walloon Agricultural Research Center (CRA-W), 24 Chaussée de Namur, 5030 Gembloux, Belgium; (O.S.C.); (C.G.)
| | - Hélène Soyeurt
- Gembloux Agro-Bio Tech, TERRA Teaching and Research Centre, University of Liège, 5030 Gembloux, Belgium; (N.G.); (H.S.)
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Influence of nutrient availability on in vitro growth of major bovine mastitis pathogens. J DAIRY RES 2021; 88:80-88. [PMID: 33594964 DOI: 10.1017/s0022029921000133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The aim of the present study was to investigate the effects of milk composition changes on the in vitro growth of bovine mastitis pathogens. Nutritional requirements of three major bovine mastitis pathogens Escherichia coli (E. coli), Staphylococcus aureus (S. aureus), and Streptococcus uberis (S. uberis) were investigated in vitro. We used ultra-high temperature (UHT) treated milk with different contents of fat, protein, and carbohydrates to test the influence of the availability of various milk constituents on pathogen growth characteristics. Additionally, the bacterial growth was investigated under experimentally modified nutrient availability by dilution and subsequent supplementation with individual nutrients (carbohydrates, different nitrogen sources, minerals, and different types of B vitamins) either to milk or to a conventional medium (thioglycolate broth, TB). Varying contents of fat, protein or lactose did not affect bacterial growth with the exception of growth of S. uberis being promoted in protein-enriched milk. The addition of nutrients to diluted whole milk and TB partly revealed different effects, indicating that there are media-specific growth limiting factors after dilution. Supplementation of minerals to diluted milk did not affect growth rates of all studied bacteria. Bacterial growth in diluted whole milk was decreased by the addition of high concentrations of amino acids in S. aureus, and by urea and additional B vitamins in E. coli and S. aureus. The growth rate of S. uberis was increased by the addition of B vitamins to diluted whole milk. The present results demonstrate that growth-limiting nutrients differ among pathogen types. Because reduced bacterial growth was only shown in diluted milk or TB, it is unlikely that alterations in nutrient availability occurring as a consequence of physiological changes of milk composition in the cow's udder would directly affect the susceptibility or course of bovine mastitis.
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Fiems L, De Boever J, Ampe B, Goossens K, De Campeneere S. Importance of calcium and phosphorus in the diet of double-muscled Belgian blue beef cattle. Livest Sci 2020. [DOI: 10.1016/j.livsci.2020.104199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Toman R, Pšenková M, Tančin V. The occurrence of eleven elements in dairy cow´s milk, feed, and soil from three different regions of Slovakia. POTRAVINARSTVO 2020. [DOI: 10.5219/1461] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The objective of this study was to measure the concentrations of eleven essential, potentially toxic and toxic elements (arsenic – As, calcium – Ca, cadmium – Cd, copper – Cu, iron – Fe, mercury – Hg, magnesium – Mg, nickel – Ni, lead – Pb, selenium – Se, zinc- Zn) in raw cow’s milk (spring, summer, and autumn season), feed (spring and autumn season) and soil (spring season) from three different environments by routine methods in the certified testing laboratory. The samples were collected in the undisturbed region around Novoť, the moderately disturbed region around Tulčík, and the strongly disturbed region around Čečejovce. The concentrations of all toxic elements (As, Cd, Hg, Ni, Pb) and two essential elements (Cu, Se) in milk were under the limits of quantification (LOQ) from all investigated areas and during all seasons. Concentrations of other elements in milk from the undisturbed and disturbed areas were significantly different, generally with the highest levels in summer. In soil samples, the significantly highest concentrations of Ca, Cu, Ni were found in a strongly disturbed area, Mg and As in moderately disturbed area, and Fe, Se, Zn, Hg, and Pb in an undisturbed area. Cadmium was under the LOQ. In feed, the concentrations of essential elements, except of Se, were higher in the autumn. The significantly highest concentration of As, Ni were recorded in a moderately disturbed area and Pb in the undisturbed area in both seasons. Cadmium and Hg were under the LOQ. Despite the higher level of some elements in soil (Fe, Mg, Ca) from all regions, there were not elevated concentrations of any element in feed or milk. The concentrations of all toxic elements in milk were under the permitted limits. Thus, the milk from all investigated areas was not contaminated with the elements posing a health risk for consumers and it is considered safe for human consumption.
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Zanon T, Costa A, De Marchi M, Penasa M, Koenig S, Gauly M. Milk yield and quality of Original Brown cattle reared in Italian alpine region. ITALIAN JOURNAL OF ANIMAL SCIENCE 2020. [DOI: 10.1080/1828051x.2020.1825997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Thomas Zanon
- Facoltà 0di Scienze e Tecnologie, Free University of Bolzano, Bolzano, Italy
| | - Angela Costa
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente, University of Padova, Legnaro, Italy
| | - Massimo De Marchi
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente, University of Padova, Legnaro, Italy
| | - Mauro Penasa
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente, University of Padova, Legnaro, Italy
| | - Sven Koenig
- Institut für Tierzucht und Haustiergenetik, Justus-Liebig University Giessen, Giessen, Germany
| | - Matthias Gauly
- Facoltà 0di Scienze e Tecnologie, Free University of Bolzano, Bolzano, Italy
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21
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SILVA DCD, FERNANDES BD, LIMA JMDS, SILVA BAD, RODRIGUES GP, SOUZA EJOD. Subclinical hypomagnesemia: Prevalence and causes in dairy cows in the semiarid region of the state of Paraíba, Brazil. REVISTA BRASILEIRA DE SAÚDE E PRODUÇÃO ANIMAL 2020. [DOI: 10.1590/s1519-99402121132020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT In dairy farming, cows display important metabolic changes during the transition period, particularly high-production cows, which need nutrients in greater quantity to meet the required demand. The aim of this study was to determine the prevalence of subclinical hypomagnesemia in pre- and post-partum dairy cows inserted in milk-production systems in the Sousa microregion and the district of São João do Rio do Peixe, both in the State of Paraíba, Brazil. As such, visits were made every two weeks to 34 rural properties, where the team collected 357 blood samples by venepuncture, 106 from pre-partum lactating cows and 251 from lactating cows in the post-partum period. It was found that the properties supplied three types of mineral supplement: a single supplement of NaCl, a supplement of NaCl + mineral base, and a commercial supplement. The cows receiving the commercial mineral supplement had the highest prevalence (10.53%) of the disorder, even showing a significant difference (P < .05) between the other types of supplement. In relation to reproductive period, it was found that the post-partum cows had a higher prevalence of subclinical hypomagnesemia (9.96%) than did the pre-partem cows (8.49%); there was, however, no significant difference (P > .05) between the two. Studies such as this are fundamental for alerting rural and technical producers to the occurrence of subclinical hypomagnesemia in the region, in addition to the damage caused by metabolic disorders.
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Development of Infrared Prediction Models for Diffusible and Micellar Minerals in Bovine Milk. Animals (Basel) 2019; 9:ani9070430. [PMID: 31323929 PMCID: PMC6680455 DOI: 10.3390/ani9070430] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/01/2019] [Accepted: 07/01/2019] [Indexed: 02/04/2023] Open
Abstract
Simple Summary Minerals are distributed in milk in two main forms: The diffusible (or soluble) fraction, composed of free ions and inorganic salts, and the micellar fraction, composed of mineral elements located on the surface or in the inner part of casein micelles. The ratio between diffusible and micellar minerals strongly affects milk coagulation ability. The objective of this study was to investigate the ability of mid-infrared spectroscopy to predict diffusible and micellar Ca, P, K, Mg and Na in individual milk samples of Holstein Friesian cows. Overall, the accuracy of mid-infrared prediction models was moderate for Ca, P and Mg, and low for micellar K, micellar Na and diffusible Na. Abstract Milk and dairy products are major sources of minerals in human diet. Minerals influence milk technological properties; in particular, micellar and diffusible minerals differentially influence rennet clotting time, curd firmness and curd formation rate. The aim of the present study was to investigate the ability of mid-infrared spectroscopy to predict the content of micellar and diffusible mineral fractions in bovine milk. Spectra of reference milk samples (n = 93) were collected using Milkoscan™ 7 (Foss Electric A/S, Hillerød, Denmark) and total, diffusible and micellar content of minerals were quantified using inductively coupled plasma optical emission spectrometry. Backward interval partial least squares algorithm was applied to exclude uninformative spectral regions and build prediction models for total, diffusible and micellar minerals content. Results showed that backward interval partial least squares analysis improved the predictive ability of the models for the studied traits compared with traditional partial least squares approach. Overall, the predictive ability of mid-infrared prediction models was moderate to low, with a ratio of performance to deviation in cross-validation that ranged from 1.15 for micellar K to 2.73 for total P.
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