Successful lactation induction in non‐pregnant gilts

A protocol to induce lactation was applied to non‐pregnant gilts. In Experiment I, five gilts with oestrus synchronized through oral supplementation of 20 mg altrenogest for 18 days received: 10 mg oestradiol cypionate (EC) on the last day of oestrous expression (D0); 10 mg EC and 300 mg long‐acting...

Full description

Saved in:
Bibliographic Details
Published in:Reproduction in domestic animals 2023-06, Vol.58 (6), p.888-892
Main Authors: Cordeiro, Ágatha Decroix, Conterato, Ana Júlia B., Bianchi, Ivan, Dartora, Débora L. A., Zanella, Ricardo, Bondan, Carlos, Marques, Mariana G., Gasperin, Bernardo G., Lucia, Thomaz
Format: Article
Language:English
Subjects:
Animals
Dietary supplements
Estrus
Female
fostered piglets
gilts
Goats
Lactation
Milk
oestradiol cypionateprogesterone
Progesterone
Prostaglandin F2a
Prostaglandins
Sus scrofa - metabolism
Swine
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A protocol to induce lactation was applied to non‐pregnant gilts. In Experiment I, five gilts with oestrus synchronized through oral supplementation of 20 mg altrenogest for 18 days received: 10 mg oestradiol cypionate (EC) on the last day of oestrous expression (D0); 10 mg EC and 300 mg long‐acting progesterone (P4) on D26; and two 0.53 mg doses of a prostaglandin F2α analogue (PGF) 12 h apart on D36. Blood was collected on D12, D19, D26 and D33. Milk secretion started in all gilts 24 h after PGF administration and lasted at least 8 days. Milk samples were collected from D37 to D45. The serum P4 concentration was lower on D12 than subsequently (p  .05). The milk produced during the induced lactation was generally richer in protein and poorer in fat compared to the milk from the lactation of a reference sow. In Experiment II, the same protocol induced lactation in two gilts, which nursed fostered piglets for 22 days. Thus, lactation was induced in all treated gilts and the milk produced was capable to nurture fostered piglets.
ISSN:0936-6768
1439-0531
DOI:10.1111/rda.14348