Journal of Animal Science and Biotechnology

Table 2 Effects of species, diet, and feed deprivation time (FDT) on blood hormone, metabolite, behavior, and muscle pH in sheep and goats

From: Preslaughter diet management in sheep and goats: effects on physiological responses and microbial loads on skin and carcass

	Species			Diet			FDT
Response	Goat	Sheep	P-value	HD	CD	P-value	12-hrs	24-hrs	P-value	SE
n	16	16		16	16		16	16
Blood hormone
Plasma cortisol, ng/mL	54.76	80.11	0.2027	62.79	72.08	0.6452	64.84	70.02	07911	13.612
Blood metabolite¹
Plasma glucose, mg/dL	130.39	128.54	0.8888	122.60	136.24	0.2159	132.37	126.47	0.5888	7.551
PUN, mg/dL	17.24	18.30	0.6820	17.24	18.30	0.6468	17.16	18.38	0.5944	1.603
Plasma CK activity, IU	571.74^b	863.94^a	0.0392	732.97	702.72	0.8265	747.15	688.54	0.6798	95.210
Plasma NEFA, mEq/L	589.78^b	1056.05^a	0.0054	953.56	692.27	0.1105	729.05	916.79	0.2108	105.01
Behavioral observations²
Standing	3.49^a	3.24^b	0.0008	3.46^a	3.26^b	0.0084
Moving	0.37^a	0.28^b	0.0440	0.19^b	0.46^a	0.0001
Agonistic	0.13^a	0.01^b	0.0001	0.03^b	0.11^a	0.0024
Lying	0.00^b	0.48^a	0.0001	0.32^a	0.16^b	0.0043
Drink	0.00	0.003	0.3176	0.002	0.00	0.3176
Dressing percent,%	43.02	42.84	0.7380	42.59	43.28	0.2049	42.79	43.07	0.5959	0.3752
Muscle pH³
Initial	6.96	6.96	0.6000	6.97	6.91	0.2740	6.92	6.97	0.3688	0.039
Ultimate	6.02^a	5.84^b	0.0002	5.98^a	5.87^b	0.0141	5.92	5.93	0.8678	0.029

HD = hay diet; CD = concentrate diet.
¹PUN = plasma urea nitrogen; CK = creatine kinase; NEFA = non-esterified fatty acids.
²Observed or 90 min before staring the slaughtering process.
³Inital = pH of longissimus muscle at immediately after skinning; Ultimate = pH of longissimus muscle at 24 h postmortem.
^a,bWithin a row, least squares means that do not have a common superscript letter differ (P < 0.05).

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ISSN: 2049-1891

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