Vitality in relation to litter size of crossbred pigs and the effect of the terminal sire line

2021 ◽  
Author(s):  
K. Elbert ◽  
N. Matthews ◽  
R. Wassmuth ◽  
J. Tetens
Keyword(s):  
Litter Size ◽  
Terminal Sire ◽  
Crossbred Pigs

scholarly journals Control of Factors Increasing the Preweaning Mortality of Swine in Puerto Rico

1969 ◽  
Vol 38 (4) ◽  
pp. 205-224
Author(s):  
A. González-Chapel ◽  
Ismael Carlo
Keyword(s):  
Puerto Rico ◽  
Litter Size ◽  
Direct Effect ◽  
Causes Of Death ◽  
Important Influence ◽  
Lower Mortality ◽  
Factors Influencing ◽  
Crossbred Pigs

The preweaning mortality of 382 litters, comprising 3,841 pigs from different purebred and crossbred sows, was studied. The average mortality was 35.7 percent. Around 70 percent of the deaths were attributable to still-born pigs or to weak ones that died within the first week after farrowing. Congenital weakness was outstanding among the causes of death. Some factors influencing preweaning mortality were considered. Summerborn pigs had lower mortality than pigs born in other seasons of the year. Crossbred pigs had lower mortality than purebred. Litters from sows 16 to 23 months old had lower mortality than litters from older sows. Second fitters were similarly more vigorous than succeeding fitters. Farrowing weight was found to exert an important influence on preweaning mortality; fewer of the heavier pigs died. Litters of 12 or more pigs had higher mortality than smaller litters. The interrelationship of age, litter number, farrowing weight, and litter size was studied statistically. Age and litter number influenced preweaning mortality mainly through their effect on the litter size, and the fitter size through its relation to farrowing weight. Farrowing weight exerted relatively the most important direct effect on mortality.

scholarly journals Effect of Terminal Sire on the Meat Quality of Three-Way Crossbred Pigs

1997 ◽  
Vol 68 (3) ◽  
pp. 310-317
Author(s):  
Keiichi SUZUKI ◽  
Hiroyuki ABE ◽  
Yuuko OGAWA ◽  
Mitsuharu ISHIDA ◽  
Takahiro SHIMIZU ◽  
...  
Keyword(s):  
Meat Quality ◽  
Terminal Sire ◽  
Crossbred Pigs

scholarly journals Carcass quality of crossbred pigs with Pietrain as a terminal sire

2009 ◽  
Vol 8 (sup3) ◽  
pp. 252-254 ◽  
Author(s):  
Ana Kaić ◽  
Dubravko Škorput ◽  
Zoran Luković
Keyword(s):  
Carcass Quality ◽  
Terminal Sire ◽  
Crossbred Pigs

Effect of the RN gene on technological and sensory meat quality in crossbred pigs with Hampshire as terminal sire

Meat Science ◽  
1996 ◽  
Vol 42 (2) ◽  
pp. 145-153 ◽  
Author(s):  
Kerstin Lundström ◽  
A. Andersson ◽  
I. Hansson
Keyword(s):  
Meat Quality ◽  
Terminal Sire ◽  
Crossbred Pigs

Litter size effects on intake at pasture and on plasma creatinine and urea concentrations in terminal sire breeds of sheep of similar mature size but different body composition

1992 ◽  
Vol 1992 ◽  
pp. 26-26
Author(s):  
S. A. Vulich ◽  
J. P. Hanrahan
Keyword(s):  
Body Composition ◽  
Litter Size ◽  
Size Effects ◽  
Production Systems ◽  
Carcass Composition ◽  
Factors Affecting ◽  
Herbage Intake ◽  
Major Factors ◽  
Terminal Sire ◽  
Mature Size

Litter size and body composition are two of the major factors affecting the efficiency of production systems under grazing conditions. The objective of this study was to evaluate breed and litter size effects on herbage intake by ewes and lambs using breeds of similar mature size but different carcass composition (viz. Suffolk and Texel; Texel leaner than Suffolk). A secondary objective was to evaluate associated effects on blood metabolites proposed as indicators of carcass composition (viz. urea, creatinine).

scholarly journals Effects of sire line, birth weight and sex on growth performance and carcass traits of crossbred pigs under standardized environmental conditions

2020 ◽  
Vol 63 (2) ◽  
pp. 367-376
Author(s):  
Kathrin Elbert ◽  
Neal Matthews ◽  
Ralf Wassmuth ◽  
Jens Tetens
Keyword(s):  
Birth Weight ◽  
Growth Performance ◽  
Meat Quality ◽  
Feed Efficiency ◽  
Carcass Traits ◽  
Final Body Weight ◽  
Selection For ◽  
And Gender ◽  
Terminal Sire ◽  
Crossbred Pigs

Abstract. A variety of available terminal sire lines makes the choice of terminal sire line complex for the pig producer. Higher birth weights are important for subsequent growth performance and selection for this trait is also necessary in sire lines. The aim was to investigate the effect of sire line, birth weight and gender on growth performance, carcass traits and meat quality. In total 3844 crossbred pigs from Camborough Pig Improvement Company (PIC) dams matched with either a Synthetic (A) or Piétrain (B) sire line were used. Pigs from line A grew faster (p<0.01), showed higher feed intake (p<0.01) and reached a higher final body weight (p≤0.01), but they had a similar efficiency (p=0.179). Leaner carcasses and heavier primal cuts (p<0.001) were observed in pigs from line B. Carcasses from pigs sired by line A had higher meat quality (p<0.001). Males had a higher growth rate (p≤0.05) but had a poorer feed efficiency (p<0.01). Heavier birth weight pigs and females had leaner, higher value carcasses with heavier primal cuts (p<0.001) compared to middle and low birth weight females or males. Sire line by sex interactions was significant for growth (p≤0.05) and carcass traits (p<0.001). Interaction between sire line and birth weight classes were only detected for loin depth (p<0.01). Line A is preferable if the numbers of fatting pigs per fattening place and year should be improved, and line B is an option to increase leanness and carcass primal cuts.

Ovarian Hemangioma in Swine

1983 ◽  
Vol 20 (4) ◽  
pp. 401-409 ◽  
Author(s):  
F. S. Hsu
Keyword(s):  
Litter Size ◽  
Fetal Death ◽  
Clinical Signs ◽  
Fertilization Failure ◽  
Pathological Features ◽  
Reproductive Disorders ◽  
Small Litter ◽  
Small Litter Size ◽  
Crossbred Pigs

Eighteen (3.9%) ovarian hemangiomas were diagnosed in a survey of reproductive disorders in 460 sows from two to eight years of age during a three-year study. Ovarian hemangiomas only were observed in sows aged over 30 months, and no such neoplasms were found in 42 gilts. The incidence of ovarian hemangioma was highest at five to eight years of age. Of the 18 sows with ovarian hemangioma, one was purebred and 17 were crossbred pigs; of these, twelve had farrowed 12 to 15 litters, four had farrowed six lo 11 litters and two had farrowed three litters. All 18 sows with ovarian hemangioma had one or more clinical signs related to reproductive disorders including small litter size, agalactia, fertilization failure, fetal death, silent estrus, anestrus, abortion, and stillbirth. The pathological features of the neoplasms in sows were similar to those described previously in swine and in man. Spontaneous ovarian hemangioma might provide a model for investigation of the etiology and pathogenesis of ovarian hemangioma in man.

The Belgian Piétrain as a sire of crossbred pigs slaughtered at 64 kg live weight. 1. Performance and carcass characteristics

1976 ◽  
Vol 23 (3) ◽  
pp. 389-393 ◽  
Author(s):  
A. N. Howard ◽  
W. C. Smith
Keyword(s):  
Cross Section ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Large White ◽  
Eye Muscles ◽  
Litter Traits ◽  
Terminal Sire ◽  
Crossbred Pigs ◽  
Farrowing Rate

SUMMARYA Piétrain boar was placed on each of six farms where the terminal sire was a Large White and the breeding females were either Large Whites or Large White × Landrace. Cooperators were requested to obtain 10 litters by each boar and record their performance to slaughter at 64 kg live weight. Farrowing rate to first service was relatively higher for sows mated with Large White boars but not significantly so. Pietrain-cross piglets were heavier at weaning (7·5%) but breed of boar did not influence other litter traits or age of progeny at slaughter. Pietrain crosses had higher carcass yields (2·4%), shorter carcasses (2·5%) and larger eye muscles in cross-section (10·6%) and in commercial evaluations relatively more were placed in the highest grade.

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