The Gir is a famous milk cattle breed of India. The native tract of the breed is Gir hills and forests of Kathiawar including Junagadh, Bhavnagar, Rajkot and Amreli districts of Gujarat. The Gir cows are famous for their tolerance to stress conditions and resistance to various tropical diseases. Gir cow is one of the best breeds of cows known for its milk quality.
The country and the world received the news with all surprise when Dr B A Golakia, head of Junaghad Agriculture University’s Biotechnology department, analysed the Gir cow’s urine using gas chromatography-mass spectrometry to finally declare that the urine of the said indigenous cow has got traces of gold in it. If to be precise, there is 3 mg of gold in 1 litre of milk, states the 4 years’ study. With the promotion of indigenous cattle breeds among its mandates, CISSA remains proud and happy over this finding.
Milk is a great source of calcium and protein. Casein is the largest group of proteins found in milk which makes up about 80% of the total protein content.
A1 and A2 beta-casein are basically two types of proteins found in different milk varieties. BCM-7 is an opioid peptide that is released during the digestion of the protein found in A1 milk. Since it is not absorbed well by the human body, it may trigger adverse health effects.
In the new hybrid breeds, the proline amino acid got converted to Histidine due to alteration of genes over the years. These are the A1 cows that include breeds like Jersey, Holstein Friesian and Ayrshire.
Proline is strongly bonded to a small protein called BCM 7, which prevents it from getting into the milk produced by A2 cows.
A new research has indicated that a peptide fragment derived from A2 cow's milk, known as lactoferricin B25 (LFcinB25), exhibited potent anticancer capability against human stomach cancer cell cultures.
In countries like New Zealand, USA, Australia there has been a clear distinction between two types of cows – the ones that give drinking milk and those that are known for drought power and used for ploughing, cheese-making or their meat.
KNOW MORE ABOUT A2 MILK
To know more how A2 milk is better than A1 download the recent research document.