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| Carrasco Alarcon, Luz Salomé; Bellof, Gerhard. |
| Organic diets with low energy and amino acid contents were studied (Bellof, et al. 2005) with positive effects on growth and carcass performance of broilers. Alfalfa is moderately rich in protein, pigments and saponins and limited content of energy (AME). This event could benefit the design of low energy diets. Also alfalfa was able to produce healthy broiler meat (low fat and cholesterol) with a special flavour (Ponte et al., 2004). In the conventional production the results are controversial. A trial with 6 % of alfalfa diet found reduced performance of broilers (Tkácová et al., 2011), and a long raising study (56 d) found high and low carcass yield with 17 and 45 g/d of alfalfa intake respectively (Ponte et al., 2004). This fact could be attributed to... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth; Poultry. |
| Ano: 2013 |
URL: http://orgprints.org/21527/1/21527_carassco.pdf |
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| Carrasco Alarcon, Luz Salomé; Bellof, Gerhard; Schmidt, Eggert. |
| An experiment was carried out to study the protein, fat and energy deposition profiles of male and female slow-growing broilers (ISA J-257) fed with organic diets. Feed mixtures with reduced dietary energy level and essential amino acids (EAAs) were tested. Birds were slaughtered at 0, 14, 28, 42 and 56 d of age. The whole body weight (WBW) was analyzed in each period to calculate the protein, fat and energy deposition. Gompertz growth curves were fitted to the data. The diets did not affect the studied variables. After 28 d, males had higher WBW growth rates, and at 56 d higher energy and protein deposition rates than females, except for fat. According to the Gompertz curves, males reached higher maximum rates of WBW growth, energy, protein and fat... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Feeding and growth; Poultry. |
| Ano: 2013 |
URL: http://orgprints.org/21361/1/21361_Carrasco.pdf |
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| Bellof, Gerhard; Carrasco Alarcon, Luz Salomé. |
| In einem Fütterungsversuch sollten die Eignung und die Wirtschaftlichkeit von Spirulina platensis (S. p.) als Eiweißfuttermittel für die ökologische Broilermast überprüft werden. Der Versuch wurde an der Hochschule Weihenstephan-Triesdorf durchgeführt. Für den Versuch wurden insgesamt 720 Eintagsküken (Genotyp ISA J 957; gemischtgeschlechtlich) eingestallt und gemäß der EU-Öko-Verordnung gehalten. Es erfolgte die Differenzierung in eine Aufzuchtperiode (1. – 28. Lebenstag, in einem klimatisierten Feststall) und eine Mastperiode (29. – 56. Lebenstag, in Mobilställen mit Grünauslauf). Die Tiere wurden gleichmäßig auf vier Fütterungsgruppen verteilt (Kontrolle, Versuch 1; Versuch 2; Versuch 3). Die Versuchsgruppe 1 erhielt Mischungen mit 2,5 % S. p.... |
| Tipo: Report |
Palavras-chave: Feeding and growth; Poultry. |
| Ano: 2010 |
URL: http://orgprints.org/18501/1/18501%2D08OE098%2Dhswt%2Dbellof%2D2010%2Dmikroalge_spirulinaplatensis.pdf |
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