Results 31 to 40 of about 8,772,762 (291)
Genetic profile of total body energy content of Holstein cows in the first three lactations [PDF]
Weekly total body energy content (TBEC) was calculated for 444 Holstein cows in their first 3 lactations. These calculations were based on body lipid and protein changes predicted from weekly changes in body condition score and live weight of each cow ...
Banos, G +3 more
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On the dynamics and selective transport of fatty acids and organochlorines in lactating grey seals (Halichoerus grypus) [PDF]
This thesis examines fatty acid (FA) and polychlorinated biphenyl (PCB) dynamics in a marine top predator, the grey seal (Halichoerus grypus,) and their transfer during lactation from mother to offspring.
Arriola Ortiz, Aline
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Insights into Lameness in Dairy Cattle: The Role of Body Condition Score and Lactation Dynamics
Lameness is a significant welfare and economic issue in dairy farms, resulting in reduced milk yield, increased treatment costs, and higher culling rates.
Yalçın Alper Özturan, İbrahim Akın
doaj +1 more source
The aim of the present study was to compare the occurrence and duration of clinical mastitis in different seasons, stages of lactation period and parities in a Holstein dairy farm in Iran. A retrospective epidemiological survey from April 2005 to March 2008 was conducted on 884 clinical mastitis cases of 7437 lactations.
Maede Moosavi +3 more
openaire +3 more sources
The aim of this study was to investigate the effect of lactation number and months on milk yield, somatic cell count (SCC) and udder measurements in Holstein cows. In the study, 30 first lactation and 49 second lactation, totally 79 Holstein cows housing
A. Ceyhan , M. Cinar , U. Serbester
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Changes in the composition and hygienic properties of milk affect producer price, so it is essential for the responsible dairy farmer to collect information on changes in these parameters due to various factors. In their study, the authors seek to answer the question whether there is a fluctuation in the daily milk yield of cows and in the composition (
Flóra Mária Petróczki +2 more
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Prevalence of Bovine KetØsis in Relation to Number and Stage of Lactation
The prevalence of bovine ketosis as distributed among various selected subgroups of 504 Ayrshire and Friesian cows was studied during the indoor-housing season 1978–1979 in western and eastern parts of Finland. Special attention was paid to variation by lactation number.
openaire +3 more sources
The influence of metabolic hormones on lactation [PDF]
Lactation is regulated by reproductive and metabolic hormones, and critical for infant and maternal health. However, the range of hormones acting on the mammary gland, their mechanisms of action, and concentrations required for milk secretion are unclear.
Rostom, Hussam
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Estimation of lactation yield from incomplete lactation records
For estimating the lactation Yield of cattle and buffaloes daily milk is recorded at systematic time intervals during the entire lactation period for a sample of selected animals.
Singh, Randhir, Narain, P.
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Analysis of Genotype × Environment Interaction for milk production in dairy cow
Genotype by environment interaction was studied with 526 lactation milk records of Red Steppe dairy cows maintained at State Enterprise “Breeding reproducer “Stepove” (Mykolayiv region, Ukraine).
S. S. Kramarenko +2 more
doaj +1 more source

