Banca de DEFESA: GIOVANI FREDERICO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : GIOVANI FREDERICO
DATE: 08/08/2022
TIME: 08:30
LOCAL: Web Conferência - Google Meet - meet.google.com/xny-pqgw-avo.
TITLE:

Herbal vitamin C supplementation in the diet of lactating sows.

KEY WORDS:

heat stress, oxidative stress, ambience, antioxidant.

PAGES: 45
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUMMARY:

Heat stress causes a reduction in voluntary consumption of the swine which impacts on milk production and consequently a reduction in the growth potential of piglets and litter weight, which may also lead to an increase in mortality and a reduction in the number of weaned piglets. The aim of this study was to supplement an herbal source of vitamin C for lactating sows and to assess its impact on the productive and reproductive performance of the sow and her litter. The study was carried out in a commercial farm located in the city of São Valentim, RS. 93 F1 sows (Landrace X Large White) of various farrowing orders (OP1 to OP8) were used during the farrowing period. At 110 days of gestation, the females were transferred to the maternity ward and distributed in a completely randomized experimental design between two treatments, according to parturition order. Control Group (n=48): The females received lactation feed without vitamin C supplementation from the moment they entered the maternity unit; C-Power Group (n=47): Females received from the moment they entered the farrowing unit a lactation diet with daily on top supplementation of 2 g of synthetic source of vitamin C (ascorbic acid) until weaning (Herbal C Power, Nuproxa, India). The additive contains selected herbs rich in gallotannins and hydrolysable bioflavonoids in conjugated form. For every 100g of the product there is 12 g (minimum) of hydrolysable tannins and flavonoids (gallic acid and ellagic acid and others) and a vehicle (maximum) of 88.0 g (natural cellulosic plants). Intakes and weights were adjusted for 21 d of lactation. There was no difference between the Control and C-Power groups for body mobilization, (-12.50±4.22 vs. -17.21±4.23; P=0.0610), nor for feed consumption, (111.67±5 .58 vs. 113.19±5.58; P=0.3890), respectively. The C-Power group had lower feed intake per kg of litter produced (2.41±0.08 vs. 2.16±0.08; P=0.0272). For estimating milk production, the C-Power group was superior (9.87±0.28 vs. 10.96±0.28; P=0.0022), as well as for litter weight gain ( 48.24±1.43 vs. 53.71±1.44; P=0.0017). The C-Power group had the lowest number of piglet deaths (-2.27±0.14 vs. -2.82±0.18; P=0.0145). Laboratory results for C-Reactive Protein, Tumor Necrosis Factor alpha, Vitamin C phosphate in the feed, Aspartate Aminotransferase, Alanine Aminotransferase showed no differences between treatments (P>0.05). The C-Power group was more efficient in converting feed into milk production and consequently in litter weight gain.

BANKING MEMBERS:
Externo à Instituição - EDUARDO SCHMITT - UFPel
Externo à Instituição - EDUARDO RAELE DE OLIVEIRA
Externo à Instituição - FERNANDO DE CASTRO TAVERNARI - EMBRAPA
Presidente - 2648941 - IVAN BIANCHI