The correlation between body weight, body weight gain and blood parameters in pigs at birth and weaning

Mirkov, M.; Radović, I.; Cincović, M.; Horvatović, M. P.; Dragin, S.

doi:10.1590/1678-4162-12795

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Animal Science • Arq. Bras. Med. Vet. Zootec. 75 (2) • Mar-Apr 2023 • https://doi.org/10.1590/1678-4162-12795 copy

The correlation between body weight, body weight gain and blood parameters in pigs at birth and weaning

[A correlação entre peso corporal, ganho de peso corporal e parâmetros sanguíneos em suínos ao nascimento e desmame]

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The aim of study was to determine the relationship between metabolic parameters, body weight and body growth of piglets at birth and weaning. The experiment included 80 piglets obtained from F1 generation sows. Body weight was measured at birth (BW0), 24h (BW1) after birth and on day 25 (at weaning, BW2). Blood sampling was performed at the beginning of life (3rd day after birth) and at weaning (21st day after birth). BW0 and BW1 positively correlated with cholesterol and negatively with urea values at the beginning of life and RBC values at weaning. BW2 positively correlates with albumin and cortisol values at the beginning of life, total proteins, and globulins at weaning, and negatively correlates with erythrocyte values at weaning. Piglet growth from birth to weaning (BWG2-0) correlates positively with total proteins, albumin, and cortisol at the beginning of life and total proteins at weaning. ROC analysis shows that MCHC, TPROT, GLOB, CHOL and AST at the beginning of life can distinguish fast-growing from slow-growing piglets from birth to weaning period. The use of blood parameters enables early recognition of growth rate in piglets, which can help to optimize all further steps to achieve the best possible growth.

Keywords:
body weight; body weight gain; blood parameters; pig production

	BW1	BW2	BWG1-0	BWG2-0
BW0	0,869^**	0,472^**	-0,484^**	0,256^*
BW1	1	0,572^**	0,012	0,401^**

	BW0	BW1	BWG1-0	BW2	BWG2-0
WBC1	-0.014	-0.038	-0.039	-0.012	-0.010
RBC1	0.194	0.108	-0.201	0.115	0.076
HGB1	0.098	0.087	-0.045	0.161	0.152
HCT1	0.212	0.189	-0.093	0.185	0.147
MCV1	0.028	0.182	0.265^*	0.101	0.104
MCH1	0.161	0.145	-0.070	0.150	0.123
MCHC1	0.058	0.150	0.148	0.079	0.072
AST1	0.170	-0.033	-0.403^**	-0.070	-0.122
TGC1	-0.207	-0.217	0.036	-0.140	-0.099
CHOL1	0.505^**	0.300^*	-0.490^**	0.083	-0.041
ALT1	0.202	0.179	-0.152	0.119	0.069
GLU1	-0.176	-0.129	0.128	-0.148	-0.116
TPROT1	-0.130	0.029	0.316^**	0.190	0.243^*
UREA1	-0.277^*	-0.357^**	-0.071	-0.192	-0.138
AMYLASE1	0.089	0.116	0.026	0.116	0.103
ALB1	0.092	0.187	0.145	0.242^*	0.241^*
GLOB1	-0.201	-0.056	0.308^**	0.110	0.174
LIPASE1	-0.107	0.066	0.333^**	0.151	0.194
TBIL1	0.149	-0.019	-0.335^**	0.033	-0.003
CORT1	-0.048	0.018	0.128	0.255^*	0.292^*
INSUL1	-0.102	-0.156	-0.076	0.038	0.068
WBC2	0.209	0.108	-0.232	0.157	0.118
RBC2	-0.279^*	-0.249^*	0.123	-0.257^*	-0.209
HGB2	-0.098	-0.113	-0.002	0.099	0.135
HCT2	-0.027	-0.085	-0.095	-0.039	-0.036
MCV2	-0.170	-0.122	0.129	-0.084	-0.048
MCH2	-0.014	0.066	0.145	0.181	0.203
MCHC2	-0.165	-0.090	0.173	-0.028	0.012
AST2	0.190	0.152	-0.115	-0.001	-0.051
TGC2	-0.064	-0.006	0.118	-0.106	-0.100
CHOL2	0.187	0.036	-0.031	0.022	-0.025
ALT2	0.123	0.158	0.030	0.072	0.047
GLU2	-0.141	-0.011	0.265^*	-0.006	0.031
TPROT2	0.108	0.210	0.153	0.273^*	0.272^*
UREA2	-0.156	-0.215	-0.066	-0.200	-0.178
AMYLASE2	0.006	0.032	0.044	0.110	0.119
ALB2	-0.053	-0.035	0.045	0.008	0.022
GLOB2	0.123	0.201	0.108	0.233^*	0.224
LIPASE2	-0.154	-0.091	0.149	0.054	0.099
TBIL2	0.215	0.116	-0.230	0.034	-0.019
CORT2	-0.025	0.007	0.063	0.105	0.122
INSUL2	-0.053	-0.100	-0.070	-0.065	0.086

Parameters	First blood sampling		Second blood sampling		ANOVA p
Parameters	Growth above median (n=40)	Growth below median (n=40)	Growth above median (n=40)	Growth below median (n=40)
BW (kg)	1.75±0.22^a	1.49±0.18^b	7.71±0.69^c	5.95±0.65^d	p˂0.01
WBC (10⁹/L)	10.4±4.12	9.9±3.85	11.1±5.02	12.8±3.99	NS
RBC (10¹²/L)	3.45±0.71^a	4.19±0.61^a	4.93±0.82^b	5.51±0.73^b	p˂0.01
HGB (g/L)	78.18±12.5^a	70.4±13.4^a	110.6±14.3^b	102.1±12.61^b	p˂0.01
HCT (%)	25.5±4.11^a	24.6±4.15^a	35.5±6.3^b	38.1±6.2^b	p˂0.01
MCV (fL)	66.9±3.2^a	64.5±3.5^a	75.6±4.4^b	73.4±4.35^b	p˂0.01
MCH (pg)	22.2±2.5^a	20.3±2.6^a	25.95±3.29^b	24.72±3.18^b	p˂0.01
MCHC (g/L)	335.5±16.4^a	324.8±15.2^a	381.2±23.1^b	369.4±23.1^b	p˂0.01
AST (IU/L)	90.5±35.7^a	85.2±34.5^a	62.3±22.5^b	58.5±21.6^b	p˂0.01
TGC (mmol/L)	2.01±0.65^a	1.55±0.58^b	2.35±0.72^a	2.3±0.71^a	p˂0.05
CHOL(mmol/L)	2.99±0.51^a	2.36±0.5^b	4.19±0.85^c	3.85±0.82^c	p˂0.01
ALT (IU/L)	83.1±28.1 ^a	89.2±26.2 ^a	74.5±17.5 ^{a b}	69.8±16.8 ^b	p˂0.05
GLU(mmol/L)	5.89±1.3	5.75±1.45	6.32±1.42	6.12±1.56	NS
TPROT (g/L)	62.4±7.7^a	53.7±8.1^b	73.6±7.2^c	69.9±8.5 ^c	p˂0.01
UREA(mmol/L)	3.56±2.23	3.95±2.41	3.9±2.25	3.96±2.19	NS
AMYL (IU/L)	815.6±195.7	900.5±190.3	899.3±207.2	902.5±210.4	NS
ALB (g/L)	17.3±3.05^a	15.4±2.68^a	36.4±6.71^b	30.5±6.71^c	p˂0.01
GLOB (g/L)	45.1±7.1^a	38.3±7.3^b	37.2±9.95^c	39.4±10.14^c	p˂0.01
LIPASE (IU/L)	74.85±13.25^a	75.7±15.4^a	95.2±19.9^b	95.3±20.2^b	p˂0.01
TBIL (μmol/L)	41.3±21.81	39.2±16.4	34.8±20.5	36.8±19.9	NS
CORT (ng/mL)	161.3±141.6^a	130.8±119.1^a	56.4±31.2^b	48.2±29.6^b	p˂0.01
INSUL (ng/mL)	5.3±3.52^a	4.2±3.85^a	2.65±1.09^b	2.01±1.1^b	p˂0.01

Parameters	AUC	95%CI	p
TPROT1	0.665	0.513-0.800	˂0.05
GLOB1	0.662	0.512-0.811	˂0.05
AST1	0.661	0.532-0.805	˂0.05
CHOL1	0.723	0.621-0.831	˂0.05
MCHC1	0.691	0.562-0.811	˂0.05

Universidade Federal de Minas Gerais, Escola de Veterinária Caixa Postal 567, 30123-970 Belo Horizonte MG - Brazil, Tel.: (55 31) 3409-2041, Tel.: (55 31) 3409-2042 - Belo Horizonte - MG - Brazil
E-mail: abmvz.artigo@gmail.com

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[1] *Corresponding author: mcincovic@gmail.com