project - Innovative project
Energy and protein requirements for optimal feeding of organically farmed sheep, and effects on the quality of organic lamba meat
Energia-ja proteiinitarbe katmine mahelammaste söötmisel ning mahelambaliha biokvaliteet
Objectives
The aim is to propose a feeding strategy based on local organic feedstuffs.
Objectives
Eesmärk on mahesöötadel põhineva söötmisstrateegia väljatöötamine mahelambafarmidele.
Activities
• Organic and conventional lamb production will be analysed using extant Animal Recording Cent data. A questionnaire will also be used to identify feeding strategy used.
• Using these data test farms (at least three) will be identified and in each of these the feeding rations for gestating and lactating ewes and finishing lambs will be sampled and analysed. Analyses of feed will include energy and protein content, chemical composition and quality. These will then be compared with known nutritional requirements. Different forages are often used to feed adult sheep, these can be either hay, grass silage or legume silage. For finishing lambs, the system used will be recorded: sward content, energy content of the grass and any additional concentrates added.
• The identified test farms will be analysed for meat quality parameters. These will be assessed for the effects of feeding grass-only or legume-rich forage.
• A trial will be carried out of lactating uses and on gestating ewes with silage-based feeding using low and optimal concentrate inputs.
Activities
• Mahelamba- ja tavatootmisfarmide jõudlusandmete võrdlev analüüs Jõudluskontrolli Keskuse andmebaasi Pässu baasil. Jõudluskontrolliga tegelevates mahefarmides korraldatakse söötmisalane ankeetküsitlus peamise kasutatava uttede ja tallede nuumamise söötmisskeemide väljaselgitamiseks, mille põhjal valitakse testfarmid.
• Mahelammaste söötmisalane monitooring vähemalt kolmes erinevas testfarmis, kus analüüsitakse tiinete ja imetavate uttede ning nuumatallede söötmise olukorda. Tehakse kindlaks kasutatavad söödaratsioonid. Igas valitud testfarmis on uttede söötmisel kasutusel erinev koresööt. Analüüsitakse noortallede nuumamiseks kasutatavaid karjamaanuuma skeeme. Tegevuse tulemusel selgub, milline on energia- ja proteiini tarbe ja teiste limiteeritavate toitefaktorite katmine uttede tiinuse ja imetamisperioodil ning tallede nuumamisel.
• Korraldatakse katsed testfarmide mahedalt üleskasvatatud nuumatallede lihajõudlusnäitajate, lihakeha koostise, liha keemilise ja rasvhappelise koostise määramiseks erineva karjamaatüübi korral.
• Korraldatakse söötmise tootmiskatse mahefarmis tiinete ja imetavate uttede silotüübilisel söötmisel optimaalsete ja madalate teravilja kogustega.
Project details
- Main funding source
- Rural development 2007-2013
- Agricultural sectors
- Sheep & Goats meat
€ 159775
Total budget
Total contributions including EU funding.
Project keyword
1 Practice Abstracts
Based on the study feeding strategy based on local organic feedstuff was proposed and meat quality traits of organically farmed lambs examined. There were differences in fat quantity and content of the carcasses between the farms and breeds of the slaughtered lambs. Carcasses of the Estonian White Face breed (mated with Dorset, Texel and Dala) were heavier than purebred Texel (Beltex) lambs, but Texel (Beltex) lambs had less fat content and higher lean meat percentage than Estonian White Face lambs. The fatty acid composition of the 5 months old organic lambs fed up on the pasture feed contained (g /100 g fatty acids) in average 52.78 g of SFA, 31.39 g of cis- MUFA, 6.05 g of cis- PUFA, total trans- fatty acids 7.71 g, ω-6 fatty acids 3.45 g, ω-3 fatty acids 2.60 g. The ratio of ω-6 fatty acids and ω-6 fatty acids were in average 1.29 in a minced meat and 1.58 in M. longissimus dorsi of slaughtered lambs.