Short communication: Monitoring nutritional quality of Amiata donkey milk: Effects of lactation and productive season

Martini, Mina; Altomonte, Iolanda; Salari, Federica; Caroli, Anna

doi:10.3168/jds.2014-8544

Cited by 43 publications

(36 citation statements)

References 18 publications

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“…However, the significant decrease in the percentage of total proteins and caseins at 6 months of lactation and the increase in urea content during lactation have also been detected by Fantuz et al (2009) in the Martina Franca donkey; this trend could be due to a nutritional imbalance of the diet from 6 months of lactation. With regard to fat, the stability of its content during lactation confirmed previous studies on dairy donkeys (Salimei et al 2004;Martini et al 2014aMartini et al , 2015. In any case, the increasing trend recorded at 6 months has also been reported by Guo et al (2007) in the Jiangyue breed.…”

Section: Discussionsupporting

confidence: 88%

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A multi-approach study of the performance of dairy donkey during lactation: preliminary results

Salari

Ciampolini

Mariti

et al. 2019

Italian Journal of Animal Science

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Donkey milk is known for some nutritional and nutraceutical peculiarities compared to the milks traditionally used for human nutrition. Moreover although the number of studies on donkey milk production has increased the asinine species still remains little investigated. This is the first study providing a multiple assessment approach in order to extend the knowledge on the production of donkey milk, on the haematological and milk cytological parameters during the whole span of lactation. Furthermore, this study characterised the LYZ and OXT genes. Twenty two individual milk and blood samples from Amiatina donkey were taken at one, six and ten months after parturition. Milk total proteins and caseins and ash were significantly higher at the 1 month of lactation while the urea was lower (1.88% 0.95%, 0.41% and 26.08 mg/mL respectively). Whereas lactose and fat did not significantly changed and showed average values of 6.84 ± 0.145% and 0.67 ± 0.546% respectively. pH and titratable acidity were respectively higher (7.20) and lower (0.10 g/l of lactic acid) at 10th month. The mean values of somatic cell count/ mL and of milk macrophages were low with maximum value at tenth month. The haematological parameters were stable during lactation except for mean corpuscular haemoglobin, mean corpuscular haemoglobin concentration and platelet count with maximum at sixth month (respectively 20.22 pg, 36.1 g/dl, 281.16 x 10 9 /l). This study also provides for the first time a characterisation of the LYZ gene in the Amiata donkey and describes a first polymorphism at the promoter level. HIGHLIGHTS This study extends the knowledge on the production of donkey milk, on the haematological and milk cytological parameters during the whole span of lactation. The results may have economic, health and social impacts since donkey milk is primarily targeted at sensitive consumers. Lysozyme polymorphisms could have association with anti-bacterial activity in milk and the inflammatory response in the mammary gland.

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Section: Discussionsupporting

confidence: 88%

“…In terms of the quantitative milk production, previous studies on a few mainly European and Chinese donkey breeds, have highlighted a high variability (D'alessandro and Martemucci 2012;Martini et al 2014a;Muhatai et al 2017). Several of these authors have also found that a higher milk yield occurs in the first 3 months of lactation.…”

Section: Discussionmentioning

confidence: 99%

A multi-approach study of the performance of dairy donkey during lactation: preliminary results

Salari

Ciampolini

Mariti

et al. 2019

Italian Journal of Animal Science

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“…Knowledge of donkey milk production and composition has improved greatly in recent years: donkey milk shows similarities with human milk with regard to CP, lactose, and ash content, whereas the fat content is lower in donkey milk . Detailed information on the nitrogen and fat fraction are now available but less attention has been paid to donkey milk macro mineral (Fantuz et al, 2009(Fantuz et al, , 2012Martini et al, 2014) and trace element content Potorti et al, 2013;Bilandzic et al, 2014), despite the importance of dietary minerals in human nutrition. Milk contains several well-known nutritionally essential macro minerals and trace elements at different concentrations, but it also contains elements whose biological role, if any, is still not known, and other elements considered potentially toxic such as As, Cd, and Pb (Gaucheron, 2013).…”

Section: Introductionmentioning

confidence: 97%

Minor and potentially toxic trace elements in milk and blood serum of dairy donkeys

Fantuz

Ferraro

Todini

et al. 2015

Journal of Dairy Science

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The aim of this trial was to study the concentration of Ti, V, As, Rb, Sr, Mo, Cd, Cs, and Pb in donkey milk and blood serum. One hundred twelve individual milk and blood serum samples were collected from 16 lactating donkeys (Martina-Franca-derived population; 6 to 12 yr old; 3 to 7 parities; average live weight 205.4kg; 32 to 58 d after foaling at the beginning of the trial) during a 3-mo-long experiment. The samples were analyzed for the aforementioned elements by inductively coupled plasma-mass spectrometry. Feedstuff and drinking water were also analyzed for the investigated elements. Data were processed by ANOVA for repeated measures. Average milk concentrations (±SD) of Ti, Rb, Sr, Mo, Cs, and Pb were 77.3 (±7.7), 339.1 (±82.1), 881.7 (±270.4), 4.5 (±1.6), 0.49 (±0.09), and 3.2 (±2.7) μg/L, respectively. More than 80% of samples were below the limit of detection for V, As, and Cd in milk and for Cd, and Pb in blood serum. The lower bound calculated for milk V, As, and Cd was 0.03μg/L for the 3 elements, the upper bound was calculated at 0.23, 0.10, and 0.31μg/L and the maximum value was observed at 0.54, 0.15, and 0.51μg/L, respectively. The average milk concentrations of Ti, Rb, Sr, Mo, and Cs were 600, 458, 346, 16, and 294%, respectively, than those of blood serum. Yet, Cs concentrations were in the same order of magnitude in milk and serum. Moderate to strong positive and significant correlation coefficients were observed between milk and blood serum concentrations for Ti, Rb, Sr, and Cs. The effect of the stage of lactation was significant for all the investigated elements in milk and blood serum, but most of the elements showed only small changes or inconsistent trends, and only the concentrations of Rb and Sr showed decreasing trends both in milk and blood serum. The relationship between milk and blood serum element concentrations indicates that the mammary gland plays a role in determining the milk concentrations of Mo, Ti, Rb, Sr, Mo, and Cs. In the current experimental conditions, in agreement with the low levels in drinking water and feedstuff, donkey milk concentration of potentially toxic elements was very low and did not raise health concerns for human consumption.

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“…Outdoor activities such as ecotourism, trekking, or hippotherapy/onotherapy have been increasing steadily in recent years. Donkeys are also used as a source of meat and milk, and donkey byproducts can be found in expensive cosmetic products [2,3]. Finally, some people, particularly in developed countries, are maintaining donkeys as companion pets.…”

Section: Introductionmentioning

confidence: 99%

Donkey Internal Medicine—Part I: Metabolic, Endocrine, and Alimentary Tract Disturbances

Mendoza

Toribio

Pérez-Écija

2018

Journal of Equine Veterinary Science

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a b s t r a c tMetabolic and endocrine disturbances are common in donkeys. This species has an inherent ability to thrive with limited and poor-quality roughage. Donkeys are extremely efficient in energy storage and mobilization, which predisposes to hyperlipemia, obesity, and metabolic syndrome. The prevalence of dyslipidemias is higher in donkeys than other equids, which is more evident under stressful conditions. Diagnosis of endocrine and metabolic disorders in donkeys should be based on species-specific information considering that differences in a multitude of variables compared with horses have been demonstrated. Protocols to assess endocrine disorders (e.g., pituitary pars intermedia dysfunction, metabolic syndrome, and thyroid illness) are unavailable, and extrapolation from horse data can be misleading. Treatment guidelines for these conditions in donkeys are currently not reported. On the other hand, the typical stoic and hardy behavior of donkeys can hinder prompt diagnosis of gastrointestinal problems, specifically colic, which is commonly caused by dental issues in this species. Moreover, subclinical gastric ulcer syndrome appears to be a common pathology in this species, especially in working donkeys.

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Short communication: Monitoring nutritional quality of Amiata donkey milk: Effects of lactation and productive season

Cited by 43 publications

References 18 publications

A multi-approach study of the performance of dairy donkey during lactation: preliminary results

A multi-approach study of the performance of dairy donkey during lactation: preliminary results

Minor and potentially toxic trace elements in milk and blood serum of dairy donkeys

Donkey Internal Medicine—Part I: Metabolic, Endocrine, and Alimentary Tract Disturbances

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