A Survey of the Vitamin and Mineral Content in Milk from Yaks Raised at Different Altitudes

Table 3

Content of minerals in milk from yaks raised at different altitudes.

	Altitude			Cow’s milk
	3,215 m	4,340 m	5,410 m
Ca (mg/L)	^b	^b	^b	^a
P (mg/L)	^b	^b	^b	^a
Na (mg/L)	^a	^a	^a	^a
K (mg/L)	^a	^a	^a	^a
Mg (mg/L)	^b	^b	^b	^a
Cu (μg/L)	^a	^b	^b	^a
Fe (μg/L)	^b	^c	^c	^a
Mn (μg/L)	^b	^a	^a	^a
Zn (mg/L)	^b	^b	^b	^a
Pb (μg/L)	^b	^a	^a	^bc
Cd (μg/L)	^b	^a	^a	^b

Values within rows with different superscript letters are significantly different from each other ().