Effects of ambient temperature and rumen–protected fat supplementation on growth performance, rumen fermentation and blood parameters during cold season in Korean cattle steers
Autor: | Kang, Hyeok Joong, Piao, Min Yu, Park, Seung Ju, Na, Sang Weon, Kim, Hyun Jin, Baik, Myunggi |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2019 |
Předmět: |
lcsh:Animal biochemistry
Growth Biology Beef cattle Article Ruminant Nutrition and Forage Utilization Rumen-protected Fat chemistry.chemical_compound Rumen Animal science Blood Metabolites lcsh:QP501-801 lcsh:SF1-1100 Ambient Temperature Cholesterol Cold season Beef Cattle chemistry Cold Stress Animal Science and Zoology Fermentation Fat supplementation lcsh:Animal culture Blood parameters Food Science Lipoprotein |
Zdroj: | Asian-Australasian Journal of Animal Sciences, Vol 32, Iss 5, Pp 657-664 (2019) Asian-Australasian Journal of Animal Sciences |
ISSN: | 1976-5517 1011-2367 |
Popis: | Objective This study was performed to evaluate whether cold ambient temperature and dietary rumen-protected fat (RPF) supplementation affect growth performance, rumen fermentation, and blood parameters in Korean cattle steers. Methods Twenty Korean cattle steers (body weight [BW], 550.6±9.14 kg; age, 19.7±0.13 months) were divided into a conventional control diet group (n = 10) and a 0.5% RPF supplementation group (n = 10). Steers were fed a concentrate diet (1.6% BW) and a rice straw diet (1 kg/d) for 16 weeks (January 9 to February 5 [P1], February 6 to March 5 [P2], March 6 to April 3 [P3], and April 4 to May 2 [P4]). Results The mean and minimum indoor ambient temperatures in P1 (−3.44°C, −9.40°C) were lower (p0.05). Ruminal ammonia nitrogen concentrations were higher (p |
Databáze: | OpenAIRE |
Externí odkaz: |