Results 1 to 10 of about 464,081 (215)

PHENOTYPIC AND GENETIC CORRELATIONS BETWEEN FIRST LACTATION MILK YIELD AND SOME PERFORMANCE TRAITS IN SAHIWAL CATTLE [PDF]

Pakistan Veterinary Journal, 2004
Data on 8948 pedigree, breeding and performance records of a purebred herd of Sahiwal cattle maintained at the Livestock Experiment Station Jahangirabad district Khanewal (Pakistan) during the period 1939-98 were analysed.
K. Javed, M. Abdullah1 , M. Akhtar2 and M. Afzal3
doaj   +2 more sources

Genetic analysis of first dry period and lifetime performance in Hariana cattle

Indian Journal of Animal Sciences, 2022
The present study was aimed to study lifetime milk production of Hariana cattle in organized farms. The nongenetic factors such as period of calving/birth, season of calving/birth, AFC age group and farms on these traits were studied by least-squares ...
MAHANTESH SHETKAR, VIJAY KUMAR, S P SINGH, YAJUVENDRA SINGH, MUNEENDRA KUMAR, KOMAL SINGH   +5 more
doaj   +1 more source

Genetic parameters of milk and lactation curve traits of dairy cattle from research farms in Thailand [PDF]

Animal Bioscience, 2022
Objective This study was aimed to estimate the genetic parameters, including genetic and phenotypic correlations, of milk yield, lactation curve traits and milk composition of Thai dairy cattle from three government research farms. Methods The data of 25,
Santi Pangmao, Peter C. Thomson, Mehar S. Khatkar   +2 more
doaj   +1 more source

Milk Composition and Production Efficiency within Feed-To-Yield Systems on Commercial Dairy Farms in Northern Ireland

Animals, 2022
This study examined the relationships between milk yield and diet composition, nutrient intakes, milk composition, and feed use efficiency when concentrates were offered using a feed-to-yield (FTY) approach.
Aimee-Louise Craig, Alan W. Gordon, Gregory Hamill, Conrad P. Ferris   +3 more
doaj   +1 more source

Age at first calving and lifetime performance of Hariana cattle at organized farms

Indian Journal of Animal Sciences, 2022
The present investigation was undertaken to access age at first calving, actual lifetime milk yield per day of productive life, actual lifetime milk yield per day of herd life and actual lifetime milk yield per day of total life. The non-genetic factors
MAHANTESH SHETKAR, VIJAY KUMAR, S P SINGH, YAJUVENDRA SINGH, MUNEENDRA KUMAR, SHASHANK NATH   +5 more
doaj   +1 more source

Influence of environmental factors and parity on milk yield dynamics in barn-housed dairy cattle

Journal of Dairy Science, 2022
: We investigated the effects of environmental factors on average daily milk yield and day-to-day variation in milk yield of barn-housed Scottish dairy cows milked with an automated milking system.
J.L. Marumo, D. Lusseau, J.R. Speakman, M. Mackie, C. Hambly   +4 more
doaj   +1 more source

Effects of Chickpea in Substitution of Soybean Meal on Milk Production, Blood Profile and Reproductive Response of Primiparous Buffaloes in Early Lactation [PDF]

, 2020
This study aimed to evaluate the effects of the use of chickpea meal in substitution of soybean meal on plasma metabolites, reproductive response, milk yield and composition and milk coagulation traits of primiparous buffaloes in early lactation ...
Aiello, Alessandra, Francia, Antonio Di, Masucci, Felicia, Napolitano, Fabio, Romano, Raffaele, Sabia, Emilio, Serrapica, Francesco   +6 more
core   +2 more sources

Dynamics of correlation coefficients of economic and productive characteristics depending on the age of cows [PDF]

E3S Web of Conferences, 2021
In 2002, a new Ural type of black-and-white breed was officially registered. Animals of this type have high productivity indicators, but at the same time there is a decrease in the productive longevity of the breeding stock.
Harlap S.Yu., Gorelik A.S., Bitkeeva M.A., Demina N.A., Mullagulova G.M.   +4 more
doaj   +1 more source

Decreased milk yield is associated with delayed milk ejection [PDF]

Journal of Dairy Science, 2019
To determine whether individual cow milking vacuum (within the short milk tube and the liner mouthpiece) could be substituted for milk flow technology to identify delayed (bimodal) milk ejection, and the possible relationship between bimodal milk flow and milk yield, we recorded milking data from 663 Holstein cows on a 3,600-cow Michigan dairy that ...
R J, Erskine, B, Norby, L M, Neuder, R S, Thomson   +3 more
openaire   +2 more sources

Prediction of 24-hour milk yield and composition in dairy cows from a single part-day yield and sample [PDF]

, 2019
peer-reviewedTeagasc PublicationIrish Journal of Agricultural and Food Research | Volume 58: Issue 1 Prediction of 24-hour milk yield and composition in dairy cows from a single part-day yield and sample S.
Berry, Donagh, Coughlan, B., Enright, B., Feeney, L., McParland, Sinead, O’Connor, R., O’Keeffe, M.   +6 more
core   +1 more source