Dairy Cattle Technical Articles

Genetics - Reproduction

Article published the 12 from April from 2017:
INTRODUCTION An adequate supply of macro and micronutrients, such as trace minerals (e.g., Zn, Mn, Cu, Co), is important for ensuring an optimal transition from pregnancy to lactation (Andrieu, 2008). For ins...
Author/s :
James K. DrackleyJohan OsorioJuan Loor
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Article published the 29 from March from 2017:
Introduction Testicular temperature of bulls must be 2 to 6° C cooler than body temperature to allow normal spermatogenesis and maturation of sperm. Exposure of bulls to increased ambient temperatures resu...
Author/s :
Robert Wettemann
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Article published the 22 from March from 2017:
In the beef cattle industry, there has been discussion in many shapes and forms concerning feeding and nutrition of purebred cattle. Often the perception by purebred breeders is that purebred cattle (PB) have s...
Author/s :
Steve Blezinger
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Article published the 10 from March from 2017:
Introduction The transcriptome is the momentary sum of all DNA transcribed in a cell. Classically, the transcriptome included the measurement of each of the ribosomal RNA, messenger RNA (mRNA), and transfer RN...
Author/s :
Massimo Bionaz
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Article published the 24 from February from 2017:
Background Cows around calving time experience a depression on immune function partially due to the marked negative energy balance (NEB), which results when cows cannot ingest enough nutrients to support dieta...
Author/s :
James K. DrackleyJohan OsorioJuan Loor
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Article published the 27 from January from 2017:
Maintaining a high level of reproductive efficiency is required if dairy herd profitability is to be maximized. Reproductive performance of a dairy herd is a function of certain management policies and how well...
Author/s :
Ray Nebel
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Article published the 16 from December from 2016:
INTRODUCTION Trace mineral elements such as Cu, Cr, and Zn have important roles in the health and immunity of peripartal dairy cows (Spears and Weiss, 2008). Minerals have been commonly supplemented to cattle ...
Author/s :
Carolina JacometoErminio TrevisiJohan OsorioJuan Loor
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Article published the 2 from December from 2016:
Introduction During early lactation (i.e. the first 60 days of lactation), the massive repartition of nutrients to the mammary gland for milk synthesis has been identified as a major contributor to the high ri...
Author/s :
Massimo Bionaz
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Article published the 25 from November from 2016:
Background Previous research has underscored that provision of adequate levels of essential AA (EAA) is critical for improving N utilization efficiency as well as maximizing bovine milk protein synthesis [1]....
Author/s :
Juan Loor
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Article published the 11 from November from 2016:
Rumen-protected lysine (Lys) and methionine (Met) are becoming common fixtures in dairy rations, particularly in those where milk is sold not only for volume, but also for the component values. Research and pr...
Author/s :
Steve Blezinger
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