Results 91 to 100 of about 1,104,984 (330)

Tendência genética para características produtivas em bovinos da raça Pardo-Suíça Genetic trend in productive traits to Brown Swiss breed

open access: yesRevista Brasileira de Zootecnia, 2003
Neste estudo foram analisados registros de produção de leite e de gordura de 4.959 lactações, de 2.414 vacas da raça Pardo-Suiça, filhas de 70 reprodutores, com partos observados de 1985 a 1998, em 51 rebanhos.
Cláudio Vieira de Araújo   +9 more
doaj   +1 more source

THE DESEASONALIZATION OF ANIMAL PRODUCTION [PDF]

open access: yes
We document the deseasonalization of animal production in the US and Europe. Hypotheses on causes and consequences of this trend are advanced. They pertain to feed costs, changes in animal productivity and cost fixity of the underlying technology ...
Hennessy, David A., Roosen, Jutta
core   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

History of registered Gyr breed in Brazilian Northeast: population structure and genetic improvement of growth traits Histórico da raça Gir registrada no Nordeste Brasileiro: melhoramento genético em características de crescimento e estrutura populacional

open access: yesCiência Rural, 2010
This paper provides an evaluation of the population structure, phenotype and genetic trends of registered Gyr herd cattle in northeast Brazil. The study provides important baseline information for the management, conservation and potential population ...
Carlos Henrique Mendes Malhado   +5 more
doaj   +1 more source

Have Biotech Seeds Increased Maize Yields? [PDF]

open access: yes
Corn yield is determined by soils, weather, seed used and other technology choices. Global population and per capita income growth trends as well as demand from the energy sector have placed great stress on cropland use.
Hennessy, David A.   +2 more
core   +1 more source

Multi-Objective Calibration For Agent-Based Models [PDF]

open access: yes, 2004
Agent-based modelling is already proving to be an immensely useful tool for scientific and industrial modelling applications. Whilst the building of such models will always be something between an art and a science, once a detailed model has been built ...
Rogers, Alex, von Tessin, Peter
core  

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

open access: yesFEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

Genetic parameters and trends for litter size in Markhoz goats

open access: yesRevista Colombiana de Ciencias Pecuarias, 2019
Background: Prolificacy has a high economic value and is one of the most important reproduction traits in small ruminants such as Markhoz goats, which is an endangered breed.
Ramin Abdoli   +4 more
doaj   +1 more source

Evaluation of gestation length in Czech Holstein cattle

open access: yesCzech Journal of Animal Science, 2020
An objective of our study was to evaluate gestation length and its genetic variability in the Czech Holstein population. Data set consisted of 770 865 records of gestation length in 375 574 Holstein cows and covered the period from 2012 to 2018.
Eva Kašná   +4 more
doaj   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

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