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001-es BibID:	BIBFORM107676
Első szerző:	Ortega, Arth David Sol Valmoria (PhD student)
Cím:	Impact of chronic heat stress on the digestibility and retention of nutrients in finishing pigs / Arth David Sol Valmoria Ortega, László Babinszky, Ogonji Humphrey Oriedo, Csaba Szabó
Dátum:	2020
Megjegyzések:	Heat stress (HS) compromise intestinal integrity of pigs which can result to poor nutrient digestibility and retention. The aims of the current study was to assess how chronic HS impacts the digestibility and retention of nutrients in finishing pigs and whether supplementing them with two levels of vitamins E and C and minerals Zn and Se (organic source) can help mitigate its adverse effects. Twenty-four Danbred hybrid barrows weighing 65-70kg were distributed into four different treatments (three pens per group) which were placed in thermo neutral condition (20?C) and heat stress (30?C) condition and fed with their respective dietary treatment. Pigs in the thermo neutral room received only basal feed (TC) and in heat stress room one group received the control feed (HC), the next group received increased vitamin and mineral supplementation (HT1), and the last treatment group received a further increased vitamin and mineral supplementation (to double the difference between HT1 and HC (HT2)). Diets were fed ad libitum. Two times three pigs from each treatment group where placed in individual digestibility cages in 2 batches. The experimental period lasted for 9 days (two days adaptation to the cage and 5 days collection). Collection of feces, urine and feed residue was done daily and sampled for analysis. HS did not affect significantly the nutrient digestibility and retention of pigs (P > 0.05). However, pigs fed elevated levels of antioxidants (HT1) had greater digestibility and retention of some nutrients compared to HC and TC groups, despite being exposed to high ambient temperature. Further increase in the level of antioxidant supplementation (HT2) did not improve the digestibility and protein retention of pigs. Thus, it is important to carefully evaluate the level of vitamin and mineral requirements of pigs as well as its supplementation and pigs with high genetic capacity can be highly resilient against the adverse effects of HS.
ISBN:	978-963-490-277-5
Tárgyszavak:	Agrártudományok Állattenyésztési tudományok előadáskivonat könyvrészlet
Megjelenés:	Vidékgazdasági és fenntarthatósági kutatások aktuális eredményei: absztraktkötet / szerk. Jávor András. - p. 4-5. -
További szerzők:	Babinszky László (1950-) (agrár) Oriedo, Ogonji Humphrey Szabó Csaba (1968-) (agrármérnök)
Pályázati támogatás:	EFOP-3.6.2-16-2017-00001 EFOP
Internet cím:	Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat
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