Article info.

ABSTRACT

Received 01 Jan 2020
Revised 25 Mar 2020

Accepted 31 Mar 2020

The aim of this study was to evaluate the efficacy of PCDairy application in optimal ration formulation for milking cows on milk productivity and quality at the Dairy Demonstration and Experimental Farm with High Technology in intensive large farming conditions in Ho Chi Minh City, Vietnam from February to May 2019. The experiment was arranged into a randomized complete block design with two rations (control treatment with cows fed the current farm-based ration and PCDairy treatment with cows fed the PCDairy corrected ration) and lasted three months. Total of 56 Holstein Friesian crossbred cows at the 2^nd and 3^rd parities were divided into two treatments. The results showed that the average milk yield of cows fed the current farm-based ration (control) was 26.59 kg/cow/day and lower than that of cows fed the PCDairy corrected ration (PCDairy) of 29.48 kg/cow/day (p<0.05). There was a tendency to improve milk quality indicators (fat, protein and solid-not-fat) (p>0.05). Dry matter intake/kg milk of cows in control treatment (0.75 kg DMI/kg milk) was higher than that of PCDairy treatment (0.69 kg DMI/kg milk) (p<0.05). The cost of feed/kg milk decreased about 10.89% in PCDairy treatment. The rate of digestive diseases of cows fed the current farm-based ration (10.71%) did not differ from that of cows fed the PCDairy corrected ration (7.14%) (p>0.05). In brief, PCDairy application improved milk yield and DMI/kg milk, as well as reduced feed cost.

Keywords

Digestive disease, dry matter intake/kg milk, feed cost, milk yield, milking cow

Cited as: Hai, N.T. and Toan, D.T., 2020. Efficacy of PCDairy application in optimal ration formulation
for milking cows on milk productivity and quality. Can Tho University Journal of Science. 12(1): 1-7.