Results 51 to 60 of about 886,889 (412)
Symposium review: Why revisit dairy cattle productive lifespan?
Journal of Dairy Science, 2020 Dairy cattle productive lifespan averages approximately 3 yr after first calving. Changes in the last decade in reproductive performance, genetic merit, and societal concerns regarding animal welfare and the environmental footprint of dairy products ...
A. De Vries
semanticscholar +1 more source
A comparative study on the blood and milk cell counts of healthy, subclinical and clinical mastitis Karan Fries cows [PDF]
Veterinary World, 2015 Aim: The present study was aimed to study the use of cell counts as an early indicator of mammary health. Materials and Methods: Milk and blood cell counts were estimated from 8 healthy, 8 subclinical (SCM), and 8 clinically mastitis (CM) groups of ...
Mohanned Alhussien +5 more
doaj +1 more source
Genetic and environmental causes of variation in gestation length of Jersey crossbred cattle [PDF]
Veterinary World, 2016 Aim: The objective of this study was to investigate the effect of genetic and non-genetic factors and estimate the genetic parameter for gestation length (GL) of Jersey crossbred cattle.
Anshuman Kumar +3 more
doaj +1 more source
Optimizing age of bull at first use in relation to fertility of Murrah breeding bulls [PDF]
Veterinary World, 2015 Aim: The aim of the present investigation was to optimize the age at first use (AAFU) of semen of Murrah breeding bulls, which will help in early selection of bulls under progeny testing program for improving the reproductive performance in the herd ...
M. A. Mir +6 more
doaj +1 more source
Journal of Dairy Science, 2020 Many contemporary dairy cattle housing practices are at odds with societal perceptions of positive animal welfare. The public (i.e., those external to the dairy industry) typically emphasizes the importance of naturalness for dairy cattle, such as ...
A. Beaver +2 more
semanticscholar +1 more source
Genome-editing opportunities to enhance cattle productivity in the tropics
CABI Agriculture and Bioscience, 2022 The livestock performance in tropical regions has been limited by environmental conditions that causes heat stress and favors the development of parasites and diseases, impairing animal health.
Luiz Sergio de Almeida Camargo +1 more
doaj +1 more source
Canadian Journal of Animal Science, 2020 : The economic importance of genetically improving feed efficiency has been recognized by cattle producers worldwide. It has the potential to considerably reduce costs, minimize environmental impact, optimize land and resource use efficiency, and improve
L. Brito +13 more
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Applied Sciences, 2022 An intelligent ecosystem with real-time wireless technology is now playing a key role in meeting the sustainability requirements set by the United Nations. Dairy cattle are a major source of milk production all over the world.
Anita Gehlot +4 more
semanticscholar +1 more source
Meta‐GWAS of Pig Semen Quality Traits Reveals Conserved Genes Regulating Mammalian Fertility
Advanced Science, EarlyView.This study incorporated 14 210 individuals to perform a GWAS meta‐analysis of six semen quality traits. The GWAS meta‐analysis identifies 234 GWAS loci associated with semen quality traits. The incorporation with a functional genomics resource explains potential genetic regulation of ∼40% GWAS signals underlying semen quality traits.
Qing Lin +26 more
wiley +1 more source
Frontiers in Genetics, 2023 Various methods have been proposed to estimate daily yield from partial yields, primarily to deal with unequal milking intervals. This paper offers an exhaustive review of daily milk yields, the foundation of lactation records.
Xiao-Lin Wu +11 more
doaj +1 more source