Factors affecting daily milk yield, fat and protein percentage, and somatic cell count in primiparous Holstein cows

Atasever S., Stadnik L.

INDIAN JOURNAL OF ANIMAL RESEARCH, vol.49, no.3, pp.313-316, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 49 Issue: 3
  • Publication Date: 2015
  • Doi Number: 10.5958/0976-0555.2015.00048.5
  • Journal Name: INDIAN JOURNAL OF ANIMAL RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.313-316
  • Keywords: Cow, Environmental factor, Milk composition, Somatic cell count, CZECH FLECKVIEH COWS, EARLY LACTATION, RAW-MILK, REPRODUCTION, PROPORTION, PARITY, PERIOD
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

The objective of this study was to determine,effective factors on the variation of daily milk yield (DMY), fat. (F%) and protein percentage (P%), and somatic cell count (SCC) in Holstein cows. A total of 278 primiparous cows were examined by four parameters in four calving seasons (CS), three years and six test days (TD) post-calving. While SCC and fat values were affected by CS (P<0.05), no significant difference was found among DMY and P% by CS. Both year and TD were not effective on SCC, but significant differences (P<0.05) were determined among DMY, F% and P% by two factors. Correlation of P% with SCC and F% was estimated to be positive (P<0.01; r=0.168 and r=0.457, respectively), and correlation of DMY with fat and protein was determined as negative (P<0.01; r= -0.363 and r= -0.335, respectively). The study confirmed that multiple milk parameter factors are highly important to obtain more quality and quantity milk from primiparous dairy cows.