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Organoleptic properties of celta pig meat fed with traditional or commercial feed

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6 5 th I n te rn a ti o n a l C o n g re s s o f M e a t S c ie n c e a n d T e c h n o lo g y 69

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(#3 4 6 ) S o l Z a muz 1 , L a ur a P urriño s 1 , A lbe rt o Brugia pa g lia 2 , Da n iel F ra nc o 1 , P a ulo M uneka ta 1 , M iria n P a te ir o 1 , L a ur a C u ti llas -B a rr e ir o 1 ,

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1 1 C e n tr o T e cno lo gic o de la Ca rne, Our e n s e, S pa in; 2 U n iv e rsi ty of T urin , D e pa rt me n t of A g ric ul tur al , F or e s t a nd F ood S c ie nc e s , Grug lias c o , T orino , I tal y

In

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he or ga no le p tic a tt ri bu te s of me a t a re us ual ly c on side re d k e y fac tor s to as -s e s s me a t qual it y , a mong w h ic h the s e n s or y ac c e p tabi lit y is a m ajor fac tor to addr e s s the c on s ume rs pr e fe re nc e s , w h ic h c a n ul tim a tel y a ffe c t the ir pur -c h asing in te n tion . C el ta pig is a n a ti v e br e e d of G al ic ia (NW S pa in) h ig h ly a ppr e c ia te d b y it s s uc c ule n t me a t. M or e o v e r, pr ev ious s tud ie s h a v e sho wn the in flue nc e of d iet a nd sla ug h te r we ig h t in the n u tri tion al qual it y of me a t (L or e n z o et al ., 201 4 ). C h a nge s in the p h ysic oc he m ic al pr ope rt ie s of me a t c ould mod if y the s e n s orial c h a rac te ri s tic a nd in flue nc e the ac c e p ta nc e of c on s ume rs . T he a im of th is s tud y w as to ev alua te the e ffe c t of fe e d ing (t ra -d it ion al fe e d (C) a nd c om me rc ial fe e d (F )) a nd sla ug h te r we ig h t ( lo w we ig h t (L w) a nd h ig h we ig h (H w)) on the s e n s or y a tt ri bu te s of C el ta pig me a t.

M

ethods

he or ga no le p tic a tt ri bu te s of me a t a re us ual ly c on side re d k e y fac tor s to as -s e s s me a t qual it y , a mong w h ic h the s e n s or y ac c e p tabi lit y is a m ajor fac tor to addr e s s the c on s ume rs pr e fe re nc e s , w h ic h c a n ul tim a tel y a ffe c t the ir pur -c h asing in te n tion . C el ta pig is a n a ti v e br e e d of G al ic ia (NW S pa in) h ig h ly a ppr e c ia te d b y it s s uc c ule n t me a t. M or e o v e r, pr ev ious s tud ie s h a v e sho wn the in flue nc e of d iet a nd sla ug h te r we ig h t in the n u tri tion al qual it y of me a t (L or e n z o et al ., 201 4 ). C h a nge s in the p h ysic oc he m ic al pr ope rt ie s of me a t c ould mod if y the s e n s orial c h a rac te ri s tic a nd in flue nc e the ac c e p ta nc e of c on s ume rs . T he a im of th is s tud y w as to ev alua te the e ffe c t of fe e d ing (t ra -d it ion al fe e d (C) a nd c om me rc ial fe e d (F )) a nd sla ug h te r we ig h t ( lo w we ig h t (L w) a nd h ig h we ig h (H w)) on the s e n s or y a tt ri bu te s of C el ta pig me a t.

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T he re s ul ts of the Q DA of C el ta pig loin s a re sho wn in F igur e 1. Sig n if ic a n t d iffe re nc e s ( P <0 .05 ) in c o lor in te n si ty , m a rb ling , te nde rne s s a nd juic ine s s we re o b s e rv e d . T he C -H w sa m p le s re c e iv e d the h ig he s t s c or e s in the s e a tt ri bu te s . R e ga rd ing P C A , the fir s t two c om pone n ts (F igur e 2) ac c um ula te d 94.55% of to tal v a ria nc e (F1 = 8 3.95% a nd F2 = 10 .60%, fir s t a nd s e c ond princ ipal c om pone n ts , re s pe c ti v el y). T h is ou tc ome is in ac c or da nc e w ith R e is et al . (201 0 ), w ho a rgue d th a t to s ele c t princ ipal c om pone n ts , the ac -c um ula te d pe rc e n ta ge of v a ria nc e h as to be e qual or g re a te r th a n 7 0%. T he P C A ind ic a te d th a t c o lor , te nde rne s s , a nd fla v or we re loc a te d in the sa me quadr a n t w ith C -H w . T h is ou tc ome a g re e s w ith the da ta re por te d b y Ca n -n a ta et al . (201 0 ) w ho o b s e rv e d th a t h ig h ly m a rb le d por k loin s al s o re c e iv e d sig n if ic a n tl y h ig h s c or e s on juic ine s s a nd te nde rne s s a tt ri bu te s . In add it ion , the H C A w as a pp lie d to da ta a nd th re e g roup s w ith d iffe re n t pr e fe re nc e pr of ile s we re ge ne ra te d . T he P R E FMA P ind ic a te d th a t the a pp lie d model w as sig n if ic a n t for Gr oup 1 a nd 2 (P r>F = 0 .00 4 a nd 0 .4 5, re s pe c ti v el y). E x -te rn al pr e fe re nc e m a pping a nd c on tour p lo t (F igur e 3 ) sho we d a re as th a t 80 a nd 100% of c on s ume rs we re sa ti s fie d w ith fr e sh loin o b ta ine d fr om C -H w a nd C -L w tr e a tme n ts . T he h ig h pr e fe re nc e v alue s for the s e tr e a tme n ts c ould be a tt ri bu te d to the h ig h s c or e s o b ta ine d for te nde rne s s a nd juic ine s s a tt ri -bu te s . T h is h ypo the si s is s uppor te d b y the da ta o b ta ine d b y A asl yng et al . (2007 ), w ho re por te d th a t c on s ume r pr e fe re nc e w as po si ti v el y as s oc ia te d w ith t e nde rne s s a nd juic ine s s in por k loin s .

Concl

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sion

F e e d ing a nd sla ug h te r we ig h t in flue nc e d the s e n s orial pe rc e p tion of c o lor , m a rb ling , te nde rne s s a nd juic ine s s of C el ta pig loin s . T he h ig h pe rc e n ta ge of c on s ume rs sa ti s fie d w ith the loin s o b ta ine d fr om C -H w tr e a tme n t s uppor t the us e of tr ad it ion al fe e d a nd h ig h we ig h t sla ug h te r to pr oduc e C el ta pig loin in the c ond it ion s us e d in the pr e s e n t s tud y .

A

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le

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gemen

ts

A u thor s a re g ra te ful to Xun ta de G al ic ia for the fin a nc ial s uppor t (P ro je c t F E A D E R 201 7/038B). F in a nc ial s uppor t fr om the A ge nc ia E s ta tal de In v e s ti -gac ión for s uppor ting of S o l Z a m uz (P T A201 7-141 56-I). P a ulo E . S . M unek a ta ac kno w le dge s po s tdoc tor al fel lo wsh ip s uppor t fr om M in is tr y of E c onom y a nd C om pet it iv e ne s s (M IN E CO , S pa in) “J ua n de la C ie rv a” pr og ra m (F JCI -201 6-2 94 86 ).

R

e

ference

s

A asl yng et al . (2007 ). T he im pac t of s e n s or y qual it y of por k on c on s ume r pr e fe re nc e . M e a t S c ie nc e , 7 6 (1 ), 6 1-7 3. Ca n n a ta et al . (201 0 ). E ffe c t of v is ual m a rb ling on s e n s or y pr ope rt ie s a nd qual it y t ra it s of por k loin . M e a t S c ie nc e , 85 (3 ), 428 -4 3 4. ISO 8 586 (201 2). S e n s or y a n al ysi s - ge ne ral guidel ine s for the s ele c tion , tr a in ing a nd mon it oring of s ele c te d as s e s s or s a nd ex pe rt s e n s or y as s e s -s or s . I n te rn a tion al S ta nda rd s Or ga n isa tion pub lic a tion s . L or e n z o et al . (201 4 ). E ffe c t of the inc lusion of c he s tn u t in the fin ish ing d iet on v o la ti le c om pound s during the m a n u fac tur e of dr y -c ur e d “L ac ón ” fr om C el ta pig br e e d . M e a t S c ie nc e , 96 (1 ), 2 11-2 2 3. R e is et al . (201 0 ). M a pa de pr e fe rê nc ia . I n V . P . R . M in im (E d .), A n ál ise S e n so -rial : Es tud o s c o m c o n s umi d o re s ( pp. 2 14 -25 7 ). V iç o sa : E d . U F V .

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