Results 51 to 60 of about 52,724 (208)
Research progress on application of Chinese herbal medicine feed additives in sow production
Siliao yanjiu, 2022 Chinese herbal medicine is a safe, green and efficient feed additive, which can supplement the body's nutrients, regulate reproductive hormone secretion, promote reproductive organ development, enhance immunity, improve sow physique and improve the ...
ZHOU Peng +3 more
doaj
Animal, 2019 Understanding how critical sow live-weight and back-fat depth during gestation are in ensuring optimum sow productivity is important. The objective of this study was to quantify the association between sow parity, live-weight and back-fat depth during ...
A. Lavery +5 more
doaj +1 more source
A longitudinal study of natural infection of piglets with Streptococcus suis types 1 and 2 [PDF]
, 1991 Streptococcus suis types 1 and 2 were detected in nasal swabs taken from five litters of piglets sampled twice weekly from birth. The two types had been detected in all pigs by the time they were 38 and 25 days old respectively with mean ages of first ...
Fu, Z.F. +3 more
core
Factors Associated with Sow Stayability [PDF]
, 2007 The purpose of this study was to determine the association of production factors with stayability to parity 4 (STAY 4), defined as the ability of a sow to reach 4th parity.
Knauer, Mark +6 more
core +1 more source
THE CONTROL OF OVULATION IN THE SOW [PDF]
Reproduction, 1967 Summary. Sows were injected with hcg 2 days after removal of the litter and were examined at laparotomy for evidence of ovulation at varying intervals from 36 to 44 hr after injection. Ovulation was found to occur about 40 hr after injection. hcg-treated sows shed more eggs than untreated sows.
H L, Buttle, J L, Hancock
openaire +2 more sources
Sow dimensions and loose-housed farrowing pen sizes on commercial piglet-producing farms in Sweden
Acta Veterinaria ScandinavicaInternational interest in loose-housed farrowing is growing and there are ongoing discussions within the European Union (EU) on new legal requirements. However, there is a lack of empirical data on loose-housed farrowing pen sizes and sow dimensions in ...
Linda Marie Backeman Hannius +4 more
doaj +1 more source
Competing risk analyses of longevity in Duroc sows with a special emphasis on leg conformation
Animal, 2009 A competing risk approach was used to evaluate the influence of several factors on culling risk for 587 Duroc sows. Three different analyses were performed according to whether sow failure was due to death during productive life (DE) or to one of two ...
X. Fernàndez de Sevilla +3 more
doaj +1 more source
Breeding replacement gilts for organic pig herds*
Animal, 2011 In this study, breeding structures and commercial sow lines were evaluated by economic and genetic simulation studies for their suitability to provide the Dutch organic pig sector with replacement gilts.
J.I. Leenhouwers +3 more
doaj +1 more source
, 2022 Parental behaviour in sows begins with prepartum nest-building behaviour, which mainly consists of rooting, pawing, and foraging, to achieve a structure for farrowing and to nurse and protect the offspring. A hormonal background is linked to the onset and cessation of nest-building behaviour.
Jinhyeon Yun, Olli Peltoniemi
openaire +3 more sources
Advanced ScienceSow fertility is an economically important quantitative trait. Hundreds of quantitative trait loci (QTLs) containing tens of thousands of potential candidate genes are excavated. However, among these genes, non‐coding RNAs including long non‐coding RNAs (
Miaomiao Wang +5 more
doaj +1 more source