Effect of new livestock feeds' phytonutrients on productivity, carcass composition and meat quality in pigs.


Improving pig growth performance, nutrient digestibility and pork quality is a continual goal of the pig breeding. For this reason, an increasing interest in using phytonutrients has been observed recently. The objective of this study was to determine the impact of Larix sibirica dihydroquercetin or dry distilled Rosa damascena petals on growth performance, carcass composition, meat quality, blood characteristics and histological changes in ovaries and liver in native Danube White fattening pigs. A total of 120 pigs were used in the experiment with duration of 45 days prior to harvest. The pigs were divided into five groups. The control group (C) was fed basal diet. The other four experimental groups were fed with the same diets containing either 3.5 or 7.5 mg dihydroquercetin/kg/d and 0.255 or 0.545 g dry distilled rose petals/kg/d. The supplementations with dihydroquercetin or dry distilled rose petals increased average body weight by 7.74-9.05%, average daily gain by 27.06-30.13%, and feed to gain ratio by 12.53-15.99% and decreased feed consumption by 5.24-13.84% and average liver weight by 10.53-21.12% compared to the control group. Two supplementations didn't cause pathological changes in histological structure of pigs' liver and ovaries, and didn't influence pH values and proximate composition of m. Longissimus thoracis and m. Semimebranosus. No pH determined stress-induced muscle damage was found and the pork carcasses were classified in classes E and U. The two used supplements reduced the blood LDL cholesterol by 13.27-14.29% as well as increased erythrocytes, platelets, haematocrit, mean red blood cell count, mean haemoglobin concentration in erythrocytes, triglycerides and total cholesterol.

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Preprints for Agriculture and Allied Sciences
Advisory Board
  • Leisa Armstrong, Edith Cowan University, Australia
  • Arianna Becerril García, Autonomous University of the State of Mexico, Redalyc/AmeliCA, Mexico
  • Susmita Das, Bangladesh Agricultural Research Council
  • Abeer Elhalwagi, National Gene Bank, Egypt
  • Gopinath KA, Central Research Institute for Dryland Agriculture
  • Niklaus Grünwald, USDA Agricultural Research Service
  • Sridhar Gutam, ICAR IIHR/Open Access India
  • Vinodh Ilangovan, Max Planck Institute for Biophysical Chemistry
  • Jayalakshmi M, ANGRAU, India
  • Khelif Karima, Institut National de la Recherche Agronomique d'Algérie
  • Dinesh Kumar, Indian Agricultural Statistics Research Institute
  • Satendra Kumar Singh, Indian Council of Agricultural Research
  • Devika P. Madalli, DRTC/Indian Statistical Institute, India
  • Prateek Mahalwar, Cellulosic Technologies UG, Germany
  • Bernard Pochet, University of Liège - Gembloux Agro-Bio Tech
  • Vassilis Protonotarios, NEUROPUBLIC
  • Andy Robinson, CABI
  • Paraj Shukla, King Saud University
  • Chandni Singh, Indian Institute for Human Settlements
  • Kuldeep Singh Jadon, ICAR-Central Arid Zone Research Institute, India
  • Rajeev K Varshney, CGIAR/ICRISAT, India
  • Sumant Vyas, ICAR- National Research Centre on Camel, India
  • Oya Yildirim Rieger, Ithaka S+R/ITHAKA, USA
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