Zobrazeno 1 - 10
of 26
pro vyhledávání: '"R. P. Kwakkel"'
Publikováno v:
Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, Vol 56, Iss 3-4, Pp 199-204 (2003)
The effect of local feedstuff supplementation during the end of the rainy season, from September to October, on performances of village chicken cockerels was investigated using four treatments (T1 to T4) and four blocks. In T1, birds were allowed to
Externí odkaz:
https://doaj.org/article/85eb905c38cf49c6a346bbcca1ceaff9
Publikováno v:
World's Poultry Science Journal 79 (2023) 2
World's Poultry Science Journal, 79(2), 243-264
World's Poultry Science Journal, 79(2), 243-264
SUMMARY: The lifetime egg production capacity of laying hens (i.e. laying persistency) has increased tremendously in the last 50 years from 220 eggs in 1960 to 500 eggs in 2019. To improve and support laying persistency, nutrition is crucial to suppo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6d648d4a384d5f3b5186271ab72aa77
https://research.wur.nl/en/publications/lipid-metabolism-and-body-composition-in-long-term-producing-hens
https://research.wur.nl/en/publications/lipid-metabolism-and-body-composition-in-long-term-producing-hens
Publikováno v:
British Poultry Science, 61(1)
British Poultry Science 61 (2020) 1
British Poultry Science 61 (2020) 1
1. This study determined the effects of three protein sources (PS), each at two digestibility crude protein (DCP) levels, on performance, gut morphology and fermentation characteristics in the hindgut of broilers. 2. It was hypothesised that broilers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e38f7fe0cc71ce73b16868a328ff217
https://pubmed.ncbi.nlm.nih.gov/31547675
https://pubmed.ncbi.nlm.nih.gov/31547675
Publikováno v:
Poultry Science
Poultry Science 94 (2015) 9
Poultry Science, 94(9), 2152-2164
Poultry Science 94 (2015) 9
Poultry Science, 94(9), 2152-2164
An experiment with 288 male (Ross 308) 1-d-old broilers was conducted to test the hypothesis that a coarse diet supplemented with butyric acid (BA) and fermentable carbohydrates (FC) improves performance of broilers with a poorly digestible protein s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09633847bb6983b4b6ebe584c5adfef8
https://doi.org/10.3382/ps/pev003
https://doi.org/10.3382/ps/pev003
Autor:
Walter J. J. Gerrits, S. de Vries, Mirjam A. Kabel, A.M. Pustjens, R. P. Kwakkel, Wouter H. Hendriks
Publikováno v:
Poultry Science. 93:2010-2017
Marker methodologies to measure ileal and total tract digestibilities of diets varying in content and degradability of dietary fiber in broiler chickens were evaluated. Chromium sesquioxide (Cr2O3) and cobalt-ethylenediamine tetraacetic acid (Co-EDTA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17925ce18fb7e4a70166ffe08c717197
https://doi.org/10.3382/ps.2013-03845
https://doi.org/10.3382/ps.2013-03845
Publikováno v:
Poultry Science 92 (2013) 3
Poultry Science, 92(3), 591-602
Poultry Science, 92(3), 591-602
An experiment was conducted to investigate the effects of dietary dilution sources and levels on feather damage, performance, feeding behavior, and litter condition in rearing pullets. It was hypothesized that dietary dilution increases feeding-relat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf8706039faaac1c7d0a1314a11d0ced
https://doi.org/10.3382/ps.2012-02378
https://doi.org/10.3382/ps.2012-02378
Publikováno v:
Poultry Science 96 (2017) 1
Poultry Science, 96(1), 118-126
Poultry Science, 96(1), 118-126
Feed restriction in broilers is aimed at preventing metabolic disorders, increasing feed efficiency, or manipulating carcass conformation. The purpose of the current study was to investigate the effects of modest graded levels feed restriction during
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb6bec9aea1175e75df471fc5f774615
https://pubmed.ncbi.nlm.nih.gov/27333977
https://pubmed.ncbi.nlm.nih.gov/27333977
Publikováno v:
Applied Animal Behaviour Science, 168, 45-55
Applied Animal Behaviour Science 168 (2015)
Applied Animal Behaviour Science 168 (2015)
An experiment was conducted to determine the effects of different dietary protein levels during rearing and different dietary energy levels during lay on behaviour and feather cover in broiler breeder females. A 2 × 3 × 2 factorial arrangement of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1dd81305f287a8fa4915218b35491b0c
https://research.wur.nl/en/publications/effects-of-different-dietary-protein-levels-during-rearing-and-di
https://research.wur.nl/en/publications/effects-of-different-dietary-protein-levels-during-rearing-and-di
Publikováno v:
Worlds Poultry Science Journal, 71(01), 139-160
Worlds Poultry Science Journal 71 (2015) 01
Worlds Poultry Science Journal 71 (2015) 01
High growth rates in modern-day broilers require diets concentrated in digestible protein and energy. In addition to affecting feed conversion efficiency, it is important to prevent surplus dietary protein because of greater amounts of undigested pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e1721493d8854fa20c8e077d341c990
https://research.wur.nl/en/publications/dietary-factors-affecting-hindgut-protein-fermentation-in-broiler
https://research.wur.nl/en/publications/dietary-factors-affecting-hindgut-protein-fermentation-in-broiler
Publikováno v:
Scopus-Elsevier
NJAS Wageningen Journal of Life Sciences, 54(2), 207-221
NJAS Wageningen Journal of Life Sciences 54 (2006) 2
NJAS Wageningen Journal of Life Sciences, 54(2), 207-221
NJAS Wageningen Journal of Life Sciences 54 (2006) 2
Eggs contribute for about 4% to the daily dioxin intake of humans. Research among layer farms in the Netherlands and other EU countries has shown that organic eggs contain more dioxin than conventional ones and that a significant number of organic fa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50b5d4e3539f5d6ddabf0f7a6e9946cc
https://doi.org/10.1016/s1573-5214(06)80023-0
https://doi.org/10.1016/s1573-5214(06)80023-0