Results 11 to 20 of about 1,953,806 (106)

Comparative analysis of SNP candidates in disparate milk yielding river buffaloes using targeted sequencing [PDF]

open access: yesPeerJ, 2016
River buffalo (Bubalus bubalis) milk plays an important role in economy and nutritious diet in several developing countries. However, reliable milk-yield genomic markers and their functional insights remain unexposed.
Ramesh Menon   +2 more
doaj   +2 more sources

Genetic relationships between calving interval and body condition score conditional on milk yield [PDF]

open access: yes, 2002
Body condition score (BCS) is a useful tool in assessing the energy status of dairy cattle. Previous research has shown that it is heritable and genetically correlated to reproductive performance.
Coffey, M.P.   +7 more
core   +1 more source

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

open access: yesE3S 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.   +4 more
doaj   +1 more source

Body condition score and live-weight effects on milk production in Irish Holstein-Friesian dairy cows [PDF]

open access: yes, 2007
peer-reviewedThe objective of the present study was to quantify the relationships among body condition score (BCS; scale 1 to 5), live weight (WT) and milk production in Irish Holstein-Friesian spring calving dairy cows.
Buckley, Frank   +2 more
core   +1 more source

Phenotypic effects of calving ease on the subsequent fertility and milk production of dam and calf in UK Holstein-Friesian heifers [PDF]

open access: yes, 2011
The effect of calving ease on the fertility and production performance of both dam and calf was studied in approximately 50,000 and 10,000 UK Holstein-Friesian heifers and heifer calves, respectively. The first objective of this study was to estimate the
Coffey, M.P.   +14 more
core   +1 more source

ACCURACY OF MILK YIELD ESTIMATION IN DAIRY CATTLE FROM MONTHLY RECORD BY REGRESSION METHOD [PDF]

open access: yes, 2009
This experiment was conducted to estimate the actual milk yield and to compare the estimation accuracy of cumulative monthly record to actual milk yield by regression method.
Johari, S   +3 more
core   +1 more source

Multiple-trait multiple-country genetic evaluation of Holstein bulls for female fertility and milk production traits

open access: yesAnimal, 2014
The aim of this study was to investigate the effect of including milk yield data in the international genetic evaluation of female fertility traits to reduce or eliminate a possible bias because of across-country selection for milk yield.
M.A. Nilforooshan   +4 more
doaj   +1 more source

Modelling temperature effects on milk production : a study on Holstein cows at a Japanese farm [PDF]

open access: yes, 2014
Milk yield and its composition vary according to individual cows as well as to a variety of different environment conditions, such as temperature.
Machiko Yano   +5 more
core   +1 more source

Heat stress affects the milk yield, milk composition, serum oxidative status, and metabolites of Holstein cows during mid-lactation

open access: yes, 2023
Seasonal heat stress and metabolic disorders during mid-lactation are the main factors limiting production in Holstein cows, and several proteins and molecules involved in metabolic pathways are altered in response to stress.
Yongqiang Li   +11 more
core   +1 more source

COMPARISON OF DIFFERENT PROCEDURES FOR LACTATION LENGTH ADJUSTMENT OF MILK YIELD IN SAHIWAL CATTLE [PDF]

open access: yesPakistan Veterinary Journal, 2004
The purpose of the present study was to compare three procedures for lactation length adjustment of milk yield. For this purpose, weekly milk yield records (n = 2039) of Sahiwal cows were used. Multiplicative adjustments using simple linear regression of
I. R. Bajwa, M. S. Khan, M. A. Khan1 and K. Z. Gondal2
doaj  

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