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Utjecaj pogače sjemenki bundeve i ekstrudiranog lana u obrocima na hematološko-biokemijske pokazatelje u krvi i na kvalitetu mlijeka alpske koze tijekom rane laktacije

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اقرأ أكثر حفظ في قائمتي
  • معلومة اضافية
    • Additional Titles:
      The effect of dietary pumpkin seed cake and extruded linseed on blood haemato-chemicals and milk quality in Alpine goats during early lactation
    • Publisher Information:
      Croatian Dairy Union 2021
    • نبذة مختصرة :
      Zbog visokog sadržaja sirovih bjelančevina i visoke koncentracije nezasićenih masnih kiselina, pogača sjemenki bundeve (PSC) potencijalno je kvalitetno krmivo za preživače, dok je ekstrudirani lan (ELS) u obrocima koza već pokazao blagotvoran utjecaj na kvalitetu kozjeg mlijeka. Laktacija je vrlo zahtjevno razdoblje za praćenje metaboličkog statusa životinja. Prema tome, cilj ovoga istraživanja bio je utvrditi utjecaj PSC i ELS na hematološko-biokemijske pokazatelje u krvi i na kvalitetu mlijeka, kao zamjena za soju u obrocima mliječnih koza. Istraživanje je provedeno s 28 koza pasmine francuska alpine koje su bile podijeljene u dvije pokusne skupine tijekom 20 dana u ranoj laktaciji. Obroci su bili izbalansirani u pogledu energije i sadržaja sirovih bjelančevina, uz neznatne razlike sadržaja lipida. Obroci kontrolne skupine (n = 9) sadržavali su sačmu i ekstrudiranu soju. U obrocima pokusnih skupina soja je djelomično zamijenjena s ELS (n = 10) ili u potpunosti zamijenjena s PSC (n = 9). Hematološko-biokemijski pokazatelji u krvi koza nisu rezultirali značajnijim promjenama pod utjecajem hranidbe, iako je obrok s PSC povećao koncentraciju globulina u serumu. PSC je rezultirao smanjenjem linolne kiseline (n-6) u odnosu na kontrolnu skupinu. ELS obroci povećali su koncentraciju α-linolenske, eikozapentaenske kiseline i koncentraciju ukupnih n-3 masnih kiselina u mlijeku. Utvrđene su pozitivne korelacije između ne-esterificiranih masnih kiselina (NEFA) i C18:1/C15:0, NEFA te C17:0/C15:0, kao i β-hidroksibutirata te C17:0/C15:0. Potpuna zamjena sačme i ekstrudirane soje s PSC ili djelomično s ELS opravdana je s obzirom na hematološko-biokemijske pokazatelje koza u ranoj laktaciji, dok je ELS imao blagotvoran utjecaj na masne kiseline u mlijeku u odnosu na PSC.
      Due to the high content of crude protein and high concentration of unsaturated fatty acids, pumpkin seed cake (PSC) could be a good quality feedstuff for ruminants, while extruded linseed (ELS) has already shown some beneficial effect on fatty acids proportion of goat milk. Besides, lactation is the most demanding period when monitoring the metabolic condition of animal. Therefore, the aim of this study was to determine the effect of PSC and ELS replacing soybean meal in diets of dairy goats on blood haemato-chemical parameters and milk quality. A 28 lactating French Alpine dairy goats were monitored within 20 days in early lactation. Diet of each groups had a balanced content of energy and crude protein, and a slight difference in lipid content. Goats in control group (n = 9) received soybean meal and extruded soybean. In experimental groups soybean was partially replaced with ELS (n = 10) or completely with PSC (n = 9). Dietary treatments had no effect on haemato-chemical parameters, although PSC increased concentration of globulins in serum. PSC lowered linoleic acid compared to control. ELS increased proportion of α-linolenic acid, eicosapentaenoic acid, and total n-3 fatty acids in milk. Positive correlations were found between non-esterified fatty acids (NEFA) and ratio C18:1/C15:0, NEFA and ratio C17:0/C15:0, as well as β-hydroxybutyrate and ratio C17:0/C15:0. The replacement of soybean meal with PSC or partially with ELS is feasible with respect to haemato-chemical parameters of early lactating dairy goats, while ELS had much beneficial effect on fatty acids compared to PSC.
    • الموضوع:
      pogača sjemenki bundeve; ekstrudirani lan; mliječne koze; hemato-biokemijski pokazatelji; kvaliteta mlijeka; pumpkin seed cake; extruded linseed; dairy goats; haemato-chemicals; milk quality; text; info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion
    • Availability:
      Open access content. Open access content
      info:eu-repo/semantics/openAccess
      The content of the Journal is available free of charge and there are no publication charges. The contents of the Mljekarstvo can be used for scientific purposes, provided that the credit is given to the Journal (under Creative Commons licence CC BY-NC 4.0).
    • Note:
      application/pdf
      English
      Croatian
    • Other Numbers:
      HRCAK oai:hrcak.srce.hr:246951
      https://hrcak.srce.hr/246951
      https://hrcak.srce.hr/file/359520
      https://hrcak.srce.hr/file/359519
      1232866364
    • Contributing Source:
      HRCAK PORTAL ZNANSTVENIH CASOPISA REPUB
      From OAIster®, provided by the OCLC Cooperative.
    • الرقم المعرف:
      edsoai.on1232866364
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