Gh. Nacu


HORMONE-THERAPY – MANAGEMENT SOLUTION FOR THE REPRODUCTION ENHANCEMENT AT SOW

Gh. Nacu, C. Pascal, Cecilia Pop

Abstract
Researches were made in 1138 by Camborough sows, grouped into 3 groups as follows: WB (witness batch) - 462 sows of untreated hormone; EB 1 (experimental batch 1) - 436 sows stimulated hormone in the weaning day; EB 2 (experimental batch 2) - 240 sows stimulate the hormone at 10 days after weaning. Hormonal stimulating has been given intramuscularly to the basis of the ear, with a dose of 5 ml PG 600. In all the batches was chased fecundity and dynamic heat coming into a period of 30 days after weaning. Application of the treatment in the weaning day resulted grouping heat in day 3 and day 4 after treatment (65.8% of sows in estrus at EB 1, and only 13.9% registered at the witness batch). Application of treatment to 10 days after weaning led to the emergence of estrus following 5 days at 69.5% of sows. In the first 16 days after weaning have heat 66.6% of sows in WB, 82.1% of sows in EB 1 and 88.2% of sows in EB 2. Administration PG 600 in weaning day led to reduced weaning-estru interval from 6.3 days to 3.9 days. For stimulate sows hormonal in weaning day, fecundity was insignificant lower (74%) than the untreated sows (76.9%) or stimulated sows at 10 days after weaning (78.1%). The hormone-therapy is an effective way to improve results obtained in the reproduction sector because corrects some reproduction indices (fecundity and prolificity) and contribute to more intensive use by reducing the unproductive period at sows (weaning-estru interval).

Key words: sows, estrus, hormone therapy, management

HORMONOTERAPIA – SOLUTIE DE MANAGEMENT PENTRU INTENSIVIZAREA REPRODUCTIEI LA SCROAFA

Gh. Nacu, C. Pascal, Cecilia Pop

Abstract
Cercetarile au fost facute pe 1138 de scroafe Camborough, grupate in 3 loturi, astfel: LM (lot martor) - 462 de scroafe netratate hormonal; LE 1 (lot experimental 1) – 436 scroafe stimulate hormonal in ziua intarcarii; LE 2 (lot experimental 2) – 240 scroafe stimulate hormonal la 10 zile dupa intarcare. Stimularea hormonala a fost facuta prin administrarea intramuscular, la baza urechii, a unei doze de 5 ml PG 600. La toate loturile s-a urmarit fecunditatea si dinamica intrarii in calduri pe o perioada de 30 zile dupa intarcare. Aplicarea tratamentului in ziua intarcarii a determinat gruparea caldurilor in zilele 3 si 4 dupa trament (65,8% scroafe din LE 1 in estru, si numai 13,9% inregistrate la lotul martor). Aplicarea tratamentului la 10 zile dupa intarcare a avut ca rezultat aparitia estrului in urmatoarele 5 zile la 69,5% dintre scroafe. In primele 16 zile dupa intarcare au intrat in calduri 66,6% dintre scroafele din LM, 82,1% dintre scroafele din LE 1 si 88,2% dintre scroafele din LE 2. Administrarea PG 600 in ziua intarcarii a condus la reducerea intervalului intarcare-estru de la 6,3 zile la 3,9 zile. Pentru scroafele stimulate hormonal in ziua intarcarii, fecunditatea a fost nesemnificativ mai mica (74%) decat la cele netratate (76,9%) sau stimulate la 10 zile dupa intarcare (78,1%). Hormonoterapia este o modalitate eficace de îmbunatatire a rezultatelor obtinute în sectorul de reproductie deoarece corecteaza unii indici de reproductie (fecunditatea si prolificitatea) si contribuie la folosirea mai intensa la reproductie prin diminuarea perioadelor neproductive ale scroafelor (interval întarcare-estru).

Cuvinte cheie: scroafe, estru, terapie hormonala, management