Articles with "cows heifers" as a keyword



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A study on ghrelin and LH secretion after short fasting and on ghrelin levels at perioestrual period in dairy cattle

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Published in 2019 at "Reproduction in Domestic Animals"

DOI: 10.1111/rda.13321

Abstract: In two experiments, we studied (a) the changes of LH secretion in heifers under different feeding schedules and (b) total ghrelin concentration at oestrus in cows and heifers. In experiment one, synchronized heifers were allocated… read more here.

Keywords: ghrelin secretion; secretion; cows heifers; perioestrual period ... See more keywords
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The application of nonlinear programming on ration formulation for dairy cattle.

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Published in 2022 at "Journal of dairy science"

DOI: 10.3168/jds.2021-20817

Abstract: The objective of this study was to compare the application of iterative linear programming (iteLP), sequential quadratic programming (SQP), and mixed-integer nonlinear programming-based deterministic global optimization (MINLP_DGO) on ration formulation for dairy cattle based on… read more here.

Keywords: minlp dgo; dgo; dry cows; cows heifers ... See more keywords