Results 11 to 20 of about 56,233 (264)
The Journal of Reproduction and Development, 2022 It has been suggested that domestication has turned cattle from seasonal breeders to annual breeders. This study examined the seasonal differences in early postpartum ovulation and subsequent reproductive performance in 542 Holstein cows. Cows displaying
Minoru SAKAGUCHI +2 more
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Prospects of modernization of cattle breeding processes [PDF]
BIO Web of Conferences, 2023 The development of livestock in industrialized nations has shown that when breeding activity is well-organized, it is feasible to enhance breeds and quickly boost output.
Dosmukhamedova Mukhayo +1 more
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Frontiers in Genetics, 2021 Milk protein is one of the most important economic traits in the dairy industry. Yet, the regulatory network of miRNAs for the synthesis of milk protein in mammary is poorly understood.
Wentao Cai +6 more
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Physical Review B, 1999 We describe a variational method to solve the Holstein model for an electron coupled to dynamical, quantum phonons on an infinite lattice. The variational space can be systematically expanded to achieve high accuracy with modest computational resources (12-digit accuracy for the 1d polaron energy at intermediate coupling).
Bonča, Janez +2 more
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Body Condition Score and Milk Production on Conception Rate of Cows under a Small-Scale Dairy System
Animals, 2019 Management and production characteristics impact conception rate to first service (CR1S) in small-scale dairy farms, but the impact of body condition score (BCS) and milk production levels on cows’ fertility is unknown.
Luis Javier Montiel-Olguín +6 more
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Features of conformation type of black-andwhite cows of different origin estimated by linear classification method [PDF]
Технологія виробництва і переробки продуктів тваринництва, 2022 The research was carried out in the aspect of studying features of conformation type cows of Ukrainian Black-and-White dairy and Holstein breeds estimated by linear classification method.
Khmelnychyi L., Karpenko B.
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Animal, 2008 New molecular techniques focused on genome analysis, open new possibilities for more accurate evaluation of economiclly important traits in farm animals.
M. Sadeghi +3 more
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Relaxation Dynamics of the Holstein Polaron [PDF]
Physical Review Letters, 2012 Keeping the full quantum nature of the problem we compute the relaxation time of the Holstein polaron after it was driven far from the equilibrium by a strong oscillatory pulse. Just after the pulse the polaron's kinetic energy increases and subsequently exhibits relaxation type decrease with simultaneous emission of phonons.
Golež, Denis +3 more
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Bio-economical model application in cattle breeding
Acta Agriculturae Slovenica, 2005 Dairy production systems are complex and cannot be described by a single profit function. In a bio-economical model, relevant biological and economical aspects of the production system are described as a system of equations.
Elli PÄRNA +3 more
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Optical Conductivity of the Holstein Polaron [PDF]
Physical Review Letters, 2011 The Momentum Average approximation is used to derive a new kind of non-perturbational analytical expression for the optical conductivity (OC) of a Holstein polaron at zero temperature. This provides insight into the shape of the OC, by linking it to the structure of the polaron's phonon cloud.
Goodvin, Glen L. +2 more
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