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Title
The effect of feed supplementation with organically bound selenium on reproductive performance of gilts and multiparous sows
Author:
Rafai, P; Jakab, L;
Addresses:
AOTE, Allathigieniai Tanszek, H-1400 Budapest, Hungary AOTE Budapest Hungary H-1400 higieniai Tanszek, H-1400 Budapest, Hungary
Heading Title:
MAGYAR ALLATORVOSOK LAPJA
issue: 10, volume: 121, year: 1999,
pages: 610 - 615
SICI:
0025-004X(199910)121:10<610:TEOFSW>2.0.ZU;2-M
Source:
ISI
Language:
HUN
Subject:
VITAMIN-E; PROGENY; MILK;
Document Type:
Article
Nature:
Serial
Edition:
Agriculture,Biology & Environmental Sciences
Citations:
22
Reviewed:
Addresses for extracts:
Address: Rafai, P AOTE, Allathigieniai Tanszek, Pf 2, H-1400 Budapest, Hungary AOTEPf 2 Budapest Hungary H-1400 Pf 2, H-1400 Budapest, Hungary
Citation:
P. Rafai and L. Jakab, "The effect of feed supplementation with organically bound selenium on reproductive performance of gilts and multiparous sows", MAGY ALLATO, 121(10), 1999, pp. 610-615

Abstract

Cytoplex-Selenit is a dried Sacharomyces cerevisiae yeast culture that contains 1000 mg/kg Se in the form of seleno-methionine. The feed of gilts and sows was supplemented with 300 g/metric tonne Cytoplex-Selenit and was studied for its effects onthe onset of breeding cycle of gilts,on the litter size of multiparous sows and viability, survival and growth rate of the piglets andon the occurrence of periparturient disease complex of sows. The experiment carried out with 100 experimental and 100 control gilts hasproven that selenium supplementation of the gilts' feed from 170 days of age onward has left the proportion of cyclic gilts unaltered in comparison with the untreated controls. Two farrowings, two nursing periods and two service periods hem weaning toservice was followed up with two groups of 32 experimental and control sows. The experiment started 14 days prior to the expected parturition and concluded when piglets of the 2(nd) farrowings had been weaned. The feed of the experimental sows was supplemented with Cytoplex-Selenit (300 g/metric tonne) thoroughout of the experiment, It follows that at the time of the first farrowing the experimental sows had been consuming the selenium supplemented feed only for 14 days. This short period of supplementation had no effect on the parameters tested. Long lasting selenium supplementation, however, increased the Litter size by 0.8 piglets in the 2(nd) farrowing and the piglets of the experimental sows produced almost 400 g more live weight by the time of weaning at 33 days of age. No signs of periparturient disease complex were seen in either groups. Although no differences were found between the groups in respect of e.g. proportion of cycling and silent sows and proportion of repeat breeders, the bigger litter size and the improved dailyweight gain of suckling piglets may justify the supplementation of sows' feeds with Cytoplex-Selenit. With regard to the legal control of selenium content of feed mixtures, it seems that Cytoplex-Selenit is a good source of selenium and it is suitable for the provision of 0.4-0.5 mg/kg selenium concentration set by the relevant law for pigs' feeds.

ASDD Area Sistemi Dipartimentali e Documentali, Bologna University, Review Catalogue
Document created on 28/02/20 at 13:58:30