Fatty acid composition of cow milk fat produced on low-input mountain farms

Frelich, J.; Šlachta, M.; Hanuš, Oto; Špička, Jiřı́; Samková, Eva

doi:10.17221/226/2009-cjas

Cited by 36 publications

(44 citation statements)

References 33 publications

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“…9,12,26 A similar trend of changes in the fatty acid composition of buffalo and cow pure milk fat with respect to the seasons was observed in the present investigation.…”

Section: Resultssupporting

confidence: 88%

Detection of Vegetable Oil and Animal Depot Fat Adulteration in Anhydrous Milk Fat (Ghee) using Fatty Acid Composition

Upadhyay¹,

Padghan²,

Kamal³

et al. 2015

MOJFPT

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Two type of adulterants i.e. soybean oil (SO) and buffalo depot fat (BDF) along with pure cow and buffalo milk fats, collected and prepared after every two months of interval for a complete one year, were analyzed for their fatty acid composition using gas liquid chromatography. Both the adulterants were added individually at 5, 10 and 15 percent levels (v/v) as well as in their combinations at 5+5 (10), 10+10 (20) and 15+15 (30) percent levels (v/v) in both types of milk fat separately. It was observed that soybean oil consisted of high amount (51.86 percent) of linoleic (C 18:2 ) acid, while buffalo depot fat possessed high content (49.17 percent) of oleic (C 18:1 ) acid. Milk fats from both the species of cow and buffalo were found containing more of myristic (C 14:0 ), palmitic (C 16:0 ), stearic (C 18:0 ) and oleic (C 18:1 ) acids. The results revealed that the SO was detected even at 5 percent level using linoleic (C 18:2 ) acid as marker, while BDF was detectable at 5 percent level using oleic (C 18:1 ) acid as the base. When the ratios of some fatty acids (C1 4:0 /C 16:0, C 14:0 /C 18:1 , C 14:0 /C 18:2 , C 16:0 /C 18:1 , C 16:0 /C 18:2 and C 18:0 /C 18:2 ) were calculated for detecting adulteration, it was noticed that two fatty acid ratios (C 14:0 /C 18:1 and C 14:0 /C 18:2 ) were found more useful in detecting adulteration in maximum number (78 percent) of samples. Whereas, on the basis of the ratios of sum of C 4:0 to C 14:1 /sum of C 15:0 to C 20:0 fatty acids and vice-versa, addition of both the adulterants at all the levels (added individually as well as in their combinations) in both the milk fats was easily detected.

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“…9,12,26 A similar trend of changes in the fatty acid composition of buffalo and cow pure milk fat with respect to the seasons was observed in the present investigation.…”

Section: Resultssupporting

confidence: 88%

Detection of Vegetable Oil and Animal Depot Fat Adulteration in Anhydrous Milk Fat (Ghee) using Fatty Acid Composition

Upadhyay¹,

Padghan²,

Kamal³

et al. 2015

MOJFPT

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“…According to Shamay et al (2005), nursing by ad libitum milk, as compared with milk replacer, affected live weight but not the size of the adult animal, and increased FCM yield at the first lactation. Different growth intensities of heifers before breeding, even under the same housing system and nutritional conditions, seem to influence their milk production during the first lactation (Bouška et al, 2007;Uhrinčať et al, 2007;Jílek et al, 2008;Frelich et al, 2009). …”

Section: Milk Productionmentioning

confidence: 99%

Effect of weaning calves from mother at different ages on their growth and milk yield of mothers

Kišac¹,

Brouček²,

Uhrinčathacek³

et al. 2011

Czech J. Anim. Sci.

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ABSTRACT:The aim of this study was to determine the impact of the length of calf sucking milk from its own mother on calf growth at the age of 3 months and milk yield of mothers. We tested a hypothesis that the nursing of calves by their own mothers increases the body weight of calves and decreases the milk production. 50 Holstein primiparous cows and their calves were divided into three groups according to the sucking length of calves: 7 days (A), 14 days (B) and 21 days (C). All calves suckled mother's colostrum and milk while mothers were milked twice per day. After weaning from mother calves were kept in individual hutches until 56 days of life, and then in group housing pens. In the period from birth to weaning the calves of group A reached the lowest and the calves of group C the highest daily gains (0.35 kg, 0.46 kg, 0.54 kg; P < 0.01). The lowest gain was recorded in animals of group A (0.55 kg) and the highest gain was reached by calves of group C (0.74 kg) for the period from birth to three months of age. For the first 305 days of lactation cows of group A produced insignificantly more milk than group C (7356.5 kg, 6779.2 kg, 6663.9 kg). A significant difference in milk production was recorded only during the first seven months of lactation (5494.5 kg, 5041.9 kg, and 4872.3 kg; P < 0.05). The long stay of calves with their mothers influences the growth of calves positively, but the milk production of mothers may decrease. Therefore, the stay of calves with the dam within 21 days after birth is not recommended for high-yielding dairy cows.

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“…Degradability of organic matter in other disciplines is investigated particularly from the aspect of resistance in acid hydrolysis (Rovira and Vallejo, 2002;Shirato and Yokozava, 2006) or in oxidation (Blair et al, 1995;Chan et al, 2001). Because it determines the reaction time of organic matter transformations, it plays an important role in many practical applications (Frelich et al, 2009;Jančík et al, 2009;Hanuš et al, 2010;Jurajda et al, 2010;Váradyová et al, 2010).…”

mentioning

confidence: 99%

Anaerobic degradability of organic matter of cattle faeces and a possibility of its utilization

Kolář¹,

Frelich²,

Brouček³

et al. 2010

CZECH J ANIM SCI

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AbstrAct:The content of organic matter labile fractions is negligible in cattle faeces but the content of the anaerobically degradable fraction on the boundary of organic matter lability and stability is analytically utilizable and different. It depends not only on feed quality and quantity but also on all factors of enteric fermentation and processes determining the digestion of ruminants. In the present paper we attempted to describe the digestive tract of ruminants as an anaerobic bioreactor and to calculate its mass balance so that the measurement of a difference in the anaerobic degradability of feeds and faeces at steady state could be theoretically demonstrated as a multipurpose research method not bothering the animals. The first results in eight variants proved that feed quality and other factors influencing processes in the digestive tract of ruminants could be monitored in this way. Obviously, this method does not replace the present methods used for feed digestibility determination.

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Fatty acid composition of cow milk fat produced on low-input mountain farms

Cited by 36 publications

References 33 publications

Detection of Vegetable Oil and Animal Depot Fat Adulteration in Anhydrous Milk Fat (Ghee) using Fatty Acid Composition

Detection of Vegetable Oil and Animal Depot Fat Adulteration in Anhydrous Milk Fat (Ghee) using Fatty Acid Composition

Effect of weaning calves from mother at different ages on their growth and milk yield of mothers

Anaerobic degradability of organic matter of cattle faeces and a possibility of its utilization

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