Results 21 to 30 of about 237,288 (308)

Study of daily dynamics of cow milk quality indicators [PDF]

BIO Web of Conferences, 2021
The introduction of modern technological advances and principles of dairy herd management, which were developed in the member countries of the International Committee for Animal Registration (ICAR), contributed to the increase in milk productivity of ...
Trukhachev Vladimir, Oliinyk Serhii, Zlydnev Nikolay, Pokotilo Alexey, Ershov Alexander   +4 more
doaj   +1 more source

Genetic parameters for milk yield in imported Jersey and Jersey-Friesian cows using daily milk records in Sri Lanka [PDF]

Asian-Australasian Journal of Animal Sciences, 2020
Objective This study was conducted to estimate genetic parameters for milk yield traits using daily milk yield records from parlour data generated in an intensively managed commercial dairy farm with Jersey and Jersey-Friesian cows in Sri Lanka.
Amali Malshani Samaraweera, Vinzent Boerner, Hewa Waduge Cyril, Julius van der Werf, Susanne Hermesch   +4 more
doaj   +1 more source

Impact of single nucleotide polymorphisms in leptin, leptin receptor, growth hormone receptor, and diacylglycerol acyltransferase (DGAT1) gene loci on milk production, feed, and body energy traits of UK dairy cows [PDF]

, 2008
The impact of 9 single nucleotide polymorphisms (SNP) in the leptin (LEP), leptin receptor (LEPR), growth hormone receptor (GHR), and diacylglycerol acyltransferase (DGAT1) gene loci on daily milk production, feed intake, and feed conversion, and weekly ...
Banos, G., Coffey, M. P., Forbes, A. B., Woodward, B. W., Woolliams, J. A.   +4 more
core   +1 more source

Bias and Accuracy of Single Milking Testing Schemes to Estimate Daily and Lactation Milk Yield

Journal of Dairy Science, 1995
This study evaluated the adequacy of an alternate a.m.-p.m. testing scheme for milk yield in comparison with the official test method based on weighing two milkings within 24 h. A total of 88,558 single test day milking weights from 15,670 Italian Friesian cows in 610 herds in the province of Milano (Italy) were collected between September 1991 and ...
CASSANDRO, MARTINO, CARNIER, PAOLO, GALLO, LUIGI, MANTOVANI, ROBERTO, CONTIERO, BARBARA, BITTANTE, GIOVANNI, JANSEN GB   +6 more
openaire   +2 more sources

Estimation of Daily Milk Yields from AM/PM Milking Records

Journal of Animal Science and Technology, 2013
Daily milk yields on test days were estimated using morning or afternoon partial milk yields collected by official agencies and the accuracy of the estimates was determined. Test-day data for milk yields consisted of 3,156,734 records of AM/PM partial milking measurements of 255,437 milking Holstein cows from 3,708 farms collected from December 2008 to
Deukhwan Lee, Hongrip Min
openaire   +2 more sources

Prenatal maternal effects on body condition score, female fertility, and milk yield of dairy cows [PDF]

, 2007
In this study, maternal effects were described as age of dam at first and second calving, first-lactation body condition score (BCS) of the dam during gestation, and milk yield of the dam.
Banos, G., Brotherstone, S., Coffey, M. P.   +2 more
core   +1 more source

Effects of Daily Exogenous Oxytocin on Lactation Milk Yield and Composition

Journal of Dairy Science, 1991
Eighty-four Holstein cows were used to determine effects of exogenous oxytocin on 305-d milk production and health. Cows were assigned at parturition by parity group to treatments: 1) oxytocin group, animals received an injection of 1 ml (20 IU) of oxytocin at each milking throughout lactation and 2) control group, animals received no injection ...
S D, Nostrand, D M, Galton, H N, Erb, D E, Bauman   +3 more
openaire   +2 more sources

PREDICTION OF LACTATION YIELD FROM LAST-RECORD DAY AND AVERAGE DAILY YIELD IN NILI-RAVI BUFFALOES [PDF]

Pakistan Veterinary Journal, 2005
Different adjustment procedures were compared to determine if prediction of lactation milk yield using last record day information could be improved by using information on the average daily milk yield of the recorded lactation. Weekly milk yield records
M. S. Khan, A. U. Hyder, I. R. Bajwa, M. S. Rehman and F. Hassan
doaj  

Comparison of Saanen x Hair Goat Crossbred (F1, G1) and Hair Goat Raised at The Farm Conditions in Terms of Milk Yield Characteristics

Turkish Journal of Agriculture: Food Science and Technology, 2014
This study was conducted to determine milk yield characteristics and its effect on genotypes, years and ages Hair goat x Saanen crossbred and Hair goat breed between 2011-2012 years in private enterprise which is located in Amasya province Sarılar ...
Hilal Tozlu Çelik, Mustafa Olfaz
doaj   +1 more source

Evaluation of milk yield losses associated with Salmonella antibodies in bulk-tank milk in bovine dairy herds [PDF]

, 2012
The effect of Salmonella on milk production is not well established in cattle. The objective of this study was to investigate whether introduction of Salmonella into dairy cattle herds was associated with reduced milk yield and the duration of any effect.
A.B. Kudahl, Amory, Anderson, Anderson, Bazeley, Bennedsgaard, Breen, Gay, Helms, Hermesch, Hoorfar, House, House, Huston, John, L.E. Green, L.R. Nielsen, McClure, Nielsen, Nielsen, Nielsen, Nielsen, Robertsson, S. Østergaard, Sanders, Sjaunja, Steinbach, T.D. Nielsen, Van Kessel, Vandegraaff, Warnick, Wilmink   +31 more
core   +2 more sources