Growth performance, meat quality, and fecal microbial population in limousin bulls supplemented with hydrolyzable tannins

Andrej Mergeduš (Avtor), Marjan Janžekovič (Avtor), Dejan Škorjanc (Avtor), Tadeja Kraner Šumenjak (Avtor), Maksimiljan Brus (Avtor)

Povzetek

The objective of this study was to investigate the effects of supplementation of hydrolyzable tannins (HT) from sweet chestnut wood extract (Castanea sativa Mill.) to the diet of Limousin bulls on growth rate, carcass and meat quality traits, and fecal Clostridia strain levels in a 7-month feeding trial. Thirty-two bulls were randomly assigned to four treatment groups (CON (without addition of HT); TAN 1 (1 g HT kg−1 DM); TAN 2 (1.5 g HT kg−1 DM); and TAN 3 (1.5 g HT kg−1 DM with a nominally lower dose of concentrate). Compared with the CON group, supplementation with HT significantly (p < 0.050) increased bull growth rate during 4–7 months, whereas carcass and meat quality traits were unaffected during the last three months of fattening. Supplementation of HT significantly reduced meat drip loss (p = 0.000) compared with the CON group. No effects were observed on the total number of fecal Clostridia strains; however, the concentration of Clostridium perfringens was significantly lower (p = 0.004) in TAN 1 than that in the CON group. The results obtained in fattening bulls indicate that the addition of HT is justified in practice to improve growth performance and feed efficiency without adverse effects on the carcass and meat quality.

Ključne besede

carcass characteristic;chestnut tannins;fecal Clostridia;growth performance;Limousin bulls;meat quality;

Podatki

Jezik:	Angleški jezik
Leto izida:	2022
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UM FKBV - Fakulteta za kmetijstvo in biosistemske vede
Založnik:	MDPI
UDK:	636.2.087
COBISS:	116379139
ISSN:	2077-0472
Št. ogledov:	0
Št. prenosov:	0
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	lastnosti trupa;kostanjevi tanini;uspešnost rasti;biki pasme limuzin;kakovost mesa;
Vrsta dela (COBISS):	Znanstveno delo
Strani:	str. 1-16
Letnik:	ǂVol. ǂ12
Zvezek:	ǂNo. ǂ7
Čas izdaje:	2022
DOI:	10.3390/agriculture12070939
ID:	25496919