Composition of Mare's Milk

Ullrey, D. E.; Struthers, R. D.; Hendricks, Deloy G.; Brent, B.E.

doi:10.2527/jas1966.251217x

Cited by 80 publications

(46 citation statements)

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“…The same fat and protein tendencies during lactation were also found by Intrieri and Minieri (1969) and by Ullrey et al (1966) on mares, and therefore there could be physiological affinities in the lactation for the equines.…”

Section: Resultssupporting

confidence: 79%

Jennet milk production during the lactation in a Sicilian farming system

Giosuè

Alabiso

Russo

et al. 2008

Animal

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In Italy, the interest for jennet milk production has recently developed. An 18-month-long experiment was carried out on a jennet farm near Milo (CT), where 24 jennets, which derived from the Ragusana breed, were tested for milk yield and composition over an entire lactation period. The jennets were fed with hay and concentrate in a large paddock. From the 28th post-foaling day to the end of the lactation, the jennets were machine-milked twice a day with an in-between milking interval of 5 h. The milk amount from each jennet was recorded every 3 weeks and individual samples were collected and analyzed for fat, protein, casein, non-proteic nitrogen, lactose and somatic cell count. This study showed that jennets at Sicilian latitudes are not seasonal polyestrous. The daily milk yield, the length of lactation and the milk characteristics varied depending on the foaling season. The total average milk production was 490 6 36 kg in 295 6 12 post-foaling days, considering two milking records per day. During the lactation, milk yield decreased constantly from 1.98 to 1.28 kg/jennet per day. When looking at the jennet milk quality during lactation, the percentage of fat and protein decreased, while the lactose percentage increased, according to a tendency apparently unique for equines when compared to the ruminants. When looking at the productive season, spring generally gave the best qualitative and quantitative results. Based on these results, jennet milk yield and quality could be improved; furthermore, jennet milk production may turn out to be a profitable business.

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Section: Resultssupporting

confidence: 79%

Jennet milk production during the lactation in a Sicilian farming system

Giosuè

Alabiso

Russo

et al. 2008

Animal

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“…However, mares milked without oxytocin deliver less than 500 ml at each milking (Bilek et al, 1955 ;Ullrey et al, 1966 ;Johnston et al, 1970), whereas those milked with oxytocin give a mean 1 000 ml (Oftedal et al, 1983) and a maximum of 2 000 ml (Neuhaus, 1961). The above authors did not determine daily milk production.…”

Section: Introductionmentioning

confidence: 99%

Milking lactating mares using oxytocin : milk volume and composition

Doreau¹,

Boulot²,

Martin‐Rosset³

et al. 1986

Reprod. Nutr. Dévelop.

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“…However, knowledge of the changes in protein composition over the course of lactation is limited (Mariani et al 1993), especially concerning whey proteins (Martuzzi et al 2000). Some researchers studied only the first stages of lactation (Oftedal et al 1983;Doreau et al 1993;Csapó-Kiss et al 1995); others reported almost exclusively total protein variations (e.g., Ullrey et al 1966;Bouwman and van der Schee 1978;Smolders et al 1990). …”

mentioning

confidence: 99%

“…The duration of lactation in mares is 5-8 mo , and in Italy it is usually about 180 d. The colostral period of mares is much shorter than that of cows, and the colostrum shows significant differences from normal milk only on the first day after foaling (Neseni et al 1958;Ullrey et al 1966;Csapó et al 1995).…”

mentioning

confidence: 99%

“…However, the sum on the two whey proteins of mammary gland origin (β-Lg + α-La) increased between day 4 and day 20 by 6.3%, and between day 20 and day 40 by 3.8%; the sum of the whey proteins of blood origin (SA + Ig) showed an opposite trend, with a decrease by 14.5% between day 4 and day 20 and by 11% between day 20 and day 40. Mots clés: Lait de jument, stade de la lactation, distribution des protéines du lactosérum, HPLC en phase inverseThe duration of lactation in mares is 5-8 mo , and in Italy it is usually about 180 d. The colostral period of mares is much shorter than that of cows, and the colostrum shows significant differences from normal milk only on the first day after foaling (Neseni et al 1958;Ullrey et al 1966;Csapó et al 1995). …”

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confidence: 99%

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Mare milk nitrogen fractions during lactation and determination by reversed-phase HPLC of the major whey proteins

Summer

Tirelli²,

Formaggioni³

et al. 2005

Can. J. Anim. Sci.

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P. 2005. Mare milk nitrogen fractions during lactation and determination by reversed-phase HPLC of the major whey proteins. Can. J. Anim. Sci. 85: 93-99. The aim of this research was to describe the changes of the nitrogen fractions in milk of Haflinger nursing mares and in particular to determine the whey protein content and distribution, and their evolution throughout the first 6 mo of lactation. Samples were collected by hand-milking on days 4, 20, 40, 60, 80, 120, 150 and 180 post-partum. Nitrogen fractions were determined by Kjeldahl on 80 samples from 10 mares, while HPLC separation of whey proteins was conducted on 40 samples from 5 mares. The total N, casein N, and true whey protein N contents showed a statistically significant decrease from day 4 to day 40, and then remained unvaried. In general, the nitrogen distribution of mare's milk significantly changed between day 4 and day 20 and then remained almost unchanged until day 180 (except for the day 150 value, which showed a statistically significant increase for CN × 100/TN). β-Lactoglobulin and serum albumin contents showed a marked reduction, of 27 and 45.5%, respectively, between day 4 and day 20, and then remained unchanged; α-lactalbumin and immunoglobulins contents had a reduction of 24.7 and 38.3%, respectively, between day 4 and day 20, and another decrease between day 20 and day 40, of 20 and 32.8%, respectively. All whey proteins, expressed as a percentage on the total sum of the four whey proteins considered, did not vary significantly during lactation. However, the sum on the two whey proteins of mammary gland origin (β-Lg + α-La) increased between day 4 and day 20 by 6.3%, and between day 20 and day 40 by 3.8%; the sum of the whey proteins of blood origin (SA + Ig) showed an opposite trend, with a decrease by 14.5% between day 4 and day 20 and by 11% between day 20 and day 40. Mots clés: Lait de jument, stade de la lactation, distribution des protéines du lactosérum, HPLC en phase inverseThe duration of lactation in mares is 5-8 mo , and in Italy it is usually about 180 d. The colostral period of mares is much shorter than that of cows, and the colostrum shows significant differences from normal milk only on the first day after foaling (Neseni et al. 1958;Ullrey et al. 1966;Csapó et al. 1995). 93Abbreviations: HPLC, high pressure liquid chromatography; N, nitrogen; TN, total nitrogen; CN, casein nitrogen; NCN, non-casein nitrogen; NPN, non-protein nitrogen; d, day of lactation; β-Lg, β-lactoglobulin; α-La, α-lactalbumin; SA, serum albumin; Ig, immunoglobulin; CV, coefficient of variation Can. J. Anim. Sci. Downloaded from www.nrcresearchpress.com by 52.36.4.81 on 05/11/18For personal use only.

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Composition of Mare's Milk

Cited by 80 publications

References 0 publications

Jennet milk production during the lactation in a Sicilian farming system

Jennet milk production during the lactation in a Sicilian farming system

Milking lactating mares using oxytocin : milk volume and composition

Mare milk nitrogen fractions during lactation and determination by reversed-phase HPLC of the major whey proteins

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