Dairy Cattle Technical Articles

Genetics - Reproduction

Article published the June 9, 2017:
Introduction The liver performs essential functions in mammals. These include, but are not limited to, gluconeogenesis and glycogen synthesis, synthesis of several plasma proteins encompassing clotting factor...
Author/s :
Erminio TrevisiJuan LoorMassimo Bionaz
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Article published the April 12, 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 March 29, 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 March 22, 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 March 10, 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 February 24, 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 January 27, 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 December 16, 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 December 2, 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 November 25, 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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