Chilled drinking water effects on lactating Holstein cows in summer

In Experiment 1, 12 multiparous lactating cows (six per group) were offered drinking water ad libitum at temperatures of 10 or 30 degrees C in a switchback design. The treatment group received 10 degrees C water from 1235 to 2000 h and was then changed to 30 degrees C water for the remaining 16.5 h/...

Full description

Saved in:
Bibliographic Details
Published in:Journal of dairy science 1988-10, Vol.71 (10), p.2699-2708
Main Authors: Baker, C.C, Coppock, C.E, Lanham, J.K, Nave, D.H, Labore, J.M, Brasington, C.F, Stermer, R.A
Format: Article
Language:English
Subjects:
AGOTAMIENTO POR EL CALOR
AGUA POTABLE
Animals
BODY TEMPERATURE
BOVIN LAITIER
BREEDS
Cattle - physiology
COOLING
COUP DE CHALEUR
COWS
DAIRY CATTLE
DRINKING WATER
EAU POTABLE
ENFRIAMIENTO
ETE
FEED INTAKE
Female
GANADO DE LECHE
GASTROINTESTINAL MOTILITY
HEAT EXHAUSTION
HOLSTEIN-FRIESIAN
INGESTION DE PIENSO
LACTACION
LACTATION
Lactation - physiology
MILK YIELD
MOTRICITE GASTROINTESTINALE
MOVILIDAD GASTROINTESTINAL
Pregnancy
PRISE ALIMENTAIRE (ANIMAUX)
RACE
RAZAS
REFROIDISSEMENT
RENDEMENT LAITIER
RENDIMIENTO LECHERO
RESPIRACION
RESPIRATION
RUMEN
Seasons
SUMMER
TEMPERATURA DEL CUERPO
Temperature
TEMPERATURE CORPORELLE
VACA
VACHE
VERANO
Water Supply
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In Experiment 1, 12 multiparous lactating cows (six per group) were offered drinking water ad libitum at temperatures of 10 or 30 degrees C in a switchback design. The treatment group received 10 degrees C water from 1235 to 2000 h and was then changed to 30 degrees C water for the remaining 16.5 h/d. The control group received 30 degrees C water 24 h/d. Respiratory rates, rectal temperatures, and rumen motilities were measured at 1100, 1440, and 1810 h, 3 d/wk. Water consumed was recorded for 1235 to 2000 h and 2001 to 1234 h of the next day. Water consumption for the treatment group was 3.90 L/h per cow compared to 5.40 L/h per cow for the control group from 1235 to 2000 h. However, the 10 degrees C water absorbed 65.6 kcal/h more heat than the 30 degrees C water. No differences were found in respiratory rates, rectal temperatures, rumen motilities, or milk yield. Cows that drank 10 degrees C water consumed 3.67 kg of feed DM/100 kg of body weight compared with 3.36 kg of feed for the controls. In Experiment 2, the same two groups of cows were offered 9.5 degrees C water ad libitum for 24 h/d or 27.5 degrees C water for a 48 h comparison. The treatment group tended to consume more water than the control group and to have lower respiratory rates and body temperatures.
ISSN:0022-0302
1525-3198
DOI:10.3168/jds.S0022-0302(88)79863-X