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| Søegaard, Karen; Sehested, Jakob; Danielsen, Viggo. |
| In 1999, a mixed grazing system with heifers and pregnant sows was compared with grazing systems with heifers and sows alone. Normally, herbage quality used for sow grazing is not optimal for high herbage intake and it was therefore examined whether mixed grazing with heifers could improve the grazing system. Herbage quality and botanical composition of the sward was best in swards where heifers grazed alone, followed by swards with mixed grazing and the poorest quality and composition were in swards, where the sows grazed alone. The daily weight gain of the sows tended to be higher and the weight gain of the heifers was significantly higher for mixed than at mono grazing. The mixed grazing system seems to be a usable alternative for grazing sowas. |
| Tipo: Journal paper |
Palavras-chave: Pasture and forage crops; Pigs. |
| Ano: 2000 |
URL: http://orgprints.org/2973/1/Samgrasning.doc |
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| Soegaard, Karen; Sehested, Jakob; Danielsen, Viggo. |
| In 1999, a mixed grazing system with heifers and pregnant soews was compared with grazing systems with heifers and sows alone. Normally, herbage quality used for sow grazing is not optimal for high herbage intake and it was therefore examined whether mixed grazing with heifers could improve the grazing system. Herbage quality and botanical composition of the sward was best where heifers grazed alone, followed by swards with mixed grazing and the poorest quality and composition were in swards where the sows grazed alone. The daily weight gain of the sows tended to be higher and the weight gain of the heifers was significantly higher for mixed than at mono grazing. The mixed grazing system seems to be a usable alternative for grazing sows. |
| Tipo: Journal paper |
Palavras-chave: Animal husbandry. |
| Ano: 2000 |
URL: http://orgprints.org/1753/1/Dok3.doc |
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| Sehested, Jakob; Søegaard, Karen; Danielsen, Viggo; Roepstorff, Allan; Monrad, Jesper. |
| The aim of the present study was to compare the effect of mixed grazing (MI) by sows and heifers with alternate grazing (AL) or grazing heifers (HN) and sows (SN) alone on animal weight gain, sward structure, herbage quality and composition, and selection during grazing. Mixed or alternate grazing consistently improved the weight gain in both heifers and sows, compared with grazing one species alone, but the positive effect was statistically significant only for heifers. The herbage quality of the MI and AL systems was better compared with the SN system, but not clearly better compared with the HN system. The total animal weight gain (heifers+sows) and estimated herbage intake per hectare were also higher in the MI and AL systems compared with SN and HN... |
| Tipo: Journal paper |
Palavras-chave: Pasture and forage crops. |
| Ano: 2004 |
URL: http://orgprints.org/2971/1/2971.pdf |
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| Sehested, Jakob; Monrad, J.; Søegaard, Karen; Danielsen, Viggo. |
| The aim of the study was to investigate the effect of mixed grazing with first season heifers and pregnant sows on animal performance, gastro-intestinal helminths, pasture quality and sward structure during three grazing seasons. This presentation will focus on results from 1999, primarily regarding performance and parasitosis in heifers. There have been no earlier reports on such mixed grazing systems. Three grazing systems were studied in replicate: 1) Heifers grazing alone; 2) sows grazing alone; 3) heifers grazing together with sows. The heifers were inoculated with low doses of infective O.ostertagi larvae at turn-out. Continuous grazing was practised in paddocks regulated in size according to herbage allowance. Individual weight gain, faecal egg... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Animal husbandry. |
| Ano: 2000 |
URL: http://orgprints.org/97/1/Microsoft_Word_%2D_Handout_EAAP_2000.pdf |
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| Fernández, José A.; Danielsen, Viggo. |
| På den økologiske forsøgsstation Rugballegård er der gennemført et forsøg, hvor der blev sat fokus på proteintildelingen til slagtesvin. Da fremskaffelse af velegnede proteinrige fodermidler til økolo-gisk produktion kan være problematisk, var formålet med forsøget at studere effekten af et reduce-ret proteinniveau i foderet og samtidig vurdere egnetheden af lupin som proteinkilde. To hundrede grise blev fordelt på fem behandlinger: N0, N25, L0, L12,5, og L25, hvor N og L står for henholdsvis Normal og Lav proteintildeling, mens tallene 0, 12,5 og 25 angiver procent lupin i foderblandingen. Grisene, der blev opstaldet i 20 stier a` 5 galte og 20 stier a` 5 sogrise, blev fodret efter ædelyst fra foderautomater i vægtintervallet 30-105 kg. Herudover havde... |
| Tipo: Report |
Palavras-chave: Feeding and growth. |
| Ano: 2006 |
URL: http://orgprints.org/5845/2/5845.pdf |
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| Fernández, José; Danielsen, Viggo; Damgaard Poulsen, Hanne; Krogh Jensen, Søren; Søegaard, Karen. |
| Et flerårigt forsøg med udegående drægtige søer er gennemført på den økologiske forsøgs-station Rugballegård. Forsøget sigtede på at skaffe ny viden om management af afgræsningsmarker og udnyttelse af kløvergræs til søer i udendørs sohold. Specifikt blev potentialet for afgræsning af kløvergræs om sommeren og fodring med kløvergræsensilage om vinteren undersøgt, herunder mulighederne for størst dækning af søers behov for energi, aminosyrer, mineraler og vitaminer fra denne afgrøde. Tre grupper a 5 drægtige søer blev sat ind på en kløvergræsmark delt i 3 ens afgræs-ningssystemer, som hver var delt i 3 skiftefolde. Til hver af de 3 sogrupper blev der givet enten en standard fuldfoderblanding til drægtige søer (F) eller halv F + halv byg (FB) eller byg alene... |
| Tipo: Report |
Palavras-chave: Pigs; Animal husbandry; Feeding and growth. |
| Ano: 2006 |
URL: http://orgprints.org/6161/1/6161.doc |
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