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The effect of bacterial inoculant on chemical composition and fermentation of alfalfa silage

Uticaj bakterijskog inokulanta na hemijski sastav i fermentaciju silaže lucerke

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2016
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Authors
Đorđević, Snežana
Mandić, Violeta
Stanojević, Dragana
Article (Published version)
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Abstract
Alfalfa silage is a useful source of protein for feeding ruminants. Therefore, managing alfalfa silage in livestock production systems is an important issue in order to maintain the silage quality and achieve maximum profitable production of milk and meat. The aim of this investigation was to estimate the effects of bacterial inoculant Silko, containing Lactobacillus plantarum (strains: LP1, LP2, LP3 and LP4) on chemical composition, energetic characteristics and fermentation alfalfa silage under field conditions in the commercial dairy farm, during the 2016. The first-cut alfalfa in the second year has been conserved in silage form. The silage mass was subdivided into two equal parts (control (silage without inoculant) and silages treated with bacterial inoculant Silko) and ensiled in trench silo. After 60 days of ensiling, the silages were analyzed. Dry matter, ash, crude protein, lactic acid, acetic acid, total digestible nutrients value and relative feed value were significantly hi...gher in silage treated with bacterial inoculant Silko compared to control. Contrary, alfalfa silage treated with a bacterial inoculant Silko had lower values of cellulose, acid detergent fibre, neutral detergent fibre, nonnitro extractive matter, pH, butyric acid, soluble nitrogen/total nitrogen and NH3- N/total nitrogen than untreated silage. Results showed that bacterial inoculant Silko increases silage quality compared to control so that research should be directed toward the use of such prepared silage in ruminant diets and its impact on milk and meat production on farms.

Silaža lucerke je koristan izvor proteina za ishranu preživara. Stoga, proizvodnja silaže lucerke u stočarstvu predstavlja važno pitanje kako bi se održao kvalitet silaže i postigla maksimalna profitabilna proizvodnja mleka i mesa. Cilj ovog istraživanja je bio da se proceni efekat bakterijskog inokulanta Silka koji sadrži Lactobacillus plantarum (sojevi: LP1 LP2, LP3 i LP4) na hemijski sastav i fermentaciju silaže lucerke u terenskim uslovima na komercijalnoj farmi goveda u 2016. godini. Prvi otkos lucerke u drugoj godini je konzerviran u obliku silaže. Silažna masa je podeljena na dva jednaka dela (kontrola (silaža bez inokulanta) i silaža tretiranih bakterijskim inokulantom Silko) i silirana u rovu silosu. Silaža je analizirana 60 dana nakon siliranja. Sadržaj suve materije, pepela, sirovih proteina, mlečne i sirćetne kiseline, ukupna svarljiva hranljiva materija i relativna hranljiva vrednost značajno su veći u silaži tretiranoj bakterijskim inokulantom Silko nego u kontroli. Supro...tno, silaža lucerke tretirana sa bakterijskom inokulantom Silko imala je niže vrednosti za celulozu, ADF, NDF, bezazotne ekstraktivne materije, pH, buternu kiselinu i udeo rastvorljivog i amonijačnog azota u ukupnom azotu nego kontrola. Rezultati su pokazali da bakterijski inokulant Silko povećava kvalitet silaže u odnosu na kontrolu, tako da bi dalja istraživanja trebalo da budu usmerena ka korišćenju ovako pripremljene silaže u ishrani preživara i njen uticaj na proizvodnju mleka i mesa na farmama.

Keywords:
alfalfa / chemical composition / energetic characteristics / fermentation parameters / inoculant / silage
Source:
Biotechnology in Animal Husbandry, 2016, 32, 4, 413-423
Publisher:
  • Institute for Animal Husbandry, Belgrade
Projects:
  • Implementation of new biotechnological solution in breeding of cattle, sheep and goats for the purpose of obtaining biologically valuable and safe food (RS-31053)

DOI: 10.2298/bah1604413D

ISSN: 1450-9156

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URI
http://r.istocar.bg.ac.rs/handle/123456789/477
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