Effects of mastitis on milk production and composition in dairy cows

Abstract

Mastitis is the biggest economic problem in dairy industry. Mastitis also causes animal welfare problem and it is a thread to food safety and security. A baseline survey involving small-holder dairy farms was conducted to identify the correlation between mastitis (mammary inflammation) and cow’s productivity. The performance of cows, in terms of milk production, milk composition, as well as mammary inflammation levels were observed. The research was conducted in Central Java, Indonesia. A total of 103 lactating cows in the 2nd to 3rd month of lactation and parity were used. California Mastitis Test was used to analyse the inflammation level of mammary gland. Milk protein, fat and lactose contents were determined with Lactoscan Milk Analyzer. Milk production was recorded daily at morning and evening milking. The result shows statistically negative correlation (P<0.0001) between the level of mammary inflammation and milk production (r = -0.59) as well as milk protein (r = -0.55), lactose (r = -0.51), and fat contents (r = -0.46). It is concluded that, when the mammary infection in cows increased, milk production and milk components will be decreased.

Influence of Calving Ease on In-Line Milk Lactose and Other Milk Components

“…Ganter et al [ 32 ] stated that due to a negative energy balance at the beginning of lactation, the milk fat content increases, followed by a decrease in milk protein contents, which makes the F/P ratio a good indicator in metabolic disorder identification. Their results state that the amount of lactose in milk, which correlates with the amount of glucose in the blood, can be used to assess the energy balance of cows According to Harjanti and Sambodho [ 33 ] the capability of ruminant mammary gland to produce milk is determined by the activity of milk secreting cells and their numbers. Therefore, the milk yield and the concentrations of lactose, protein and fat in milk might be affected by the inflammation level of the mammary gland [ 34 ].…”

Pengaruh lama kering kandang dan periode laktasi terhadap produksi dan kualitas susu awal laktasi pada sapi perah

“…Saat masa ini, kelenjar alveolus di kelenjar mamae mengalami pemulihan untuk siap memproduksi susu pada saat laktasi berikutnya [3]. Alveolus merupakan tempat untuk mensintesis komponen susu, sehingga munculnya sel-sel baru dan perbaikan sel-sel yang rusak diduga akan mempengaruhi tinggi rendahnya komponen susu yang disintesis [4].…”

Milk production of dairy cow at PT. Ultra Peternakan Bandung Selatan

“…The dry period requires dairy cows to rest the udder glands and increase body deposits resulting in next milk production being improved, while the alveolar glands in the mammary glands are recovering to be ready to produce milk on the next lactation [11]. Alveolus is a place to synthesize milk elements, so the new cells and maintained cells will affect the increase or decrease the synthesized milk elements [12].…”