Publications by authors named "Ragothaman Venkataramanan"
Article Synopsis
- * A genetic evaluation study analyzed data from over 75,000 Jersey crossbred cows, focusing on key milk production traits over 11 years (2012-2022), such as test-day and total lactation milk yields.
- * The results showed moderate to high heritability for milk production traits, indicating potential for improving yields through selective breeding, with heritability estimates varying throughout lactation stages.
Hemoplasma are small pleomorphic wall-less Gram-positive bacteria that infect erythrocytes of various mammalian hosts. They generally cause asymptomatic or chronic anaemia but occasionally causes overt life-threatening hemolytic anaemia. In the present study, 316 cattle, 115 sheep, 61 goats and 6 buffalo blood samples were collected from various villages or organized farms located in nine districts of Tamil Nadu to detect the hemoplasma by PCR.
View Article and Find Full Text PDFObjective: An opportunistic pathogen, Trueperella pyogenes can infect cattle, buffalo, pig, goat, cat, dog, forest musk deer, etc., affecting various organs. The aim of this study was to identify the multidrug resistance genomic islands of T.
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- Fertility traits are as crucial as production traits in crossbred bovine populations, underscoring the importance of assessing bull fertility for frozen semen programs.
- The study aimed to analyze the genetic and non-genetic factors affecting conception rates using data from over 108,000 insemination records of bulls at BAIF in Pune, India.
- Findings indicated that management factors had a significantly greater impact on conception rates than genetic effects, highlighting the importance of effective management in breeding decisions.
Semen data comprising of 97,023 ejaculates of 197 bulls from 6 buffalo breeds were analyzed. The traits considered were as follows: ejaculate volume, sperm concentration, mass activity, initial and post-thaw motility, total sperm, and total motile sperm before and after thawing as well as a composite trait equal to the theoretical number of doses which can be produced from each given ejaculate. The objective was to measure the semen production potential of indigenous buffalo bulls and identify factors affecting these traits.
View Article and Find Full Text PDFSilage, which is anaerobically fermented green fodder, is valued throughout the world as a source of animal feed during lean months. Several farms in India use carbohydrate sources like jaggery or molasses at 2% for preparation of silage, and this increases cost of production. The present study was undertaken to assess the effect of jaggery on quality and intake of maize silage, with an objective to find out whether additional carbohydrate source is essential in preparation of silage using green maize.
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