The impact of season, parity and breed on selected reproductive performance parameters of sows

Knecht, Damian; Środoń, Sebastian; Duziński, Kamil

doi:10.5194/aab-58-49-2015

Cited by 43 publications

(45 citation statements)

References 29 publications

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“…Dietary and absorption disorders result in slower growth or weight loss [41]. One of the main stress factors in piglets, affecting the destabilization of the intestinal microbiota, is weaning at 28 days after birth [28,[42][43][44]. This causes a decrease in the diversity and number of microbial populations in the gastrointestinal tract.…”

Section: Some Factors Affecting Piglet Microbiota Destabilizationmentioning

confidence: 99%

Development of Swine’s Digestive Tract Microbiota and Its Relation to Production Indices—A Review

Knecht

Cholewińska

Jankowska-Mąkosa

et al. 2020

Animals

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The development of research methods and tools related to microbiome investigation, as well as widened knowledge and awareness concerning the significance of microorganisms inhabiting mammalian organisms, has led to an increasing popularity of studies in this field. This review paper presents some issues related to the swine microbiome, its development starting from an early age of life and its status in adult animals, as well as factors affecting the microbiome in pigs. Attention is paid to the role of probiotics and prebiotics as alternatives to antibiotics in the context of post-weaning diarrhea treatment, and to the role of microorganisms inhabiting the digestive tract of pigs in performance indices formation. In veterinary and pork production practice, understanding of the swine microbiome and its relationships with the host organism may be useful in the prevention of some diseases and also in improvement of performance results of animals.

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Section: Some Factors Affecting Piglet Microbiota Destabilizationmentioning

confidence: 99%

Development of Swine’s Digestive Tract Microbiota and Its Relation to Production Indices—A Review

Knecht

Cholewińska

Jankowska-Mąkosa

et al. 2020

Animals

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“…Additionally, it may affect results in the rearing of piglets due to heat stress and feed intake during lactation. Within the season, temperature variation and photoperiodic reaction are considered the main causes influencing fertility (Knecht, Srodon, & Duzinski, 2015), although the resistance of individuals is dependent on the breed (Wysokinska & Kondracki, 2013). The sex of the offspring also influences the growth performance of piglets (Peaker & Taylor, 1996).…”

Section: Introductionmentioning

confidence: 99%

Pre-Weaning Growth Performance of Piglets at Smallholder Farms in Gauteng Province

Matabane¹,

Nephawe²,

Thomas³

et al. 2018

JAS

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The objective of the study was to determine pre-weaning performance of piglets born following artificial insemination (AI) at smallholder farms of Gauteng province. Data from 496 piglets originating from 73 multiparous crossbred sows were used in the study. Litter size, number of piglets born alive, number of piglets weaned, birth and weaning weights were recorded. Data was analysed using the Proc Univariate procedure of SAS. The average litter size was 11.8. The average birth weight and weaning weights were 1.9 and 6.2 kg, respectively. No significant differences were found between male and female piglets for all the growth performance characteristics. Piglets born during winter had a significantly higher (P < 0.05) birth and weaning weight as compared to autumn and summer months. Season had a significant effect on birth and weaning weight (P < 0.01). However, sex of piglets had no significant effect on all the characteristics recorded (P > 0.05). The interaction between sex and season was only confirmed on the total number of weaned piglets (P < 0.01). A highly significant positive correlation was found between litter size and number of piglets born alive (r = 0.86) and total number of piglets weaned (r = 0.50). A highly significant correlation was found between total number of piglets born alive and total number of piglets weaned (r = 0.55). In conclusion, season of birth had the greatest impact on birth and weaning weight, with the highest birth and weaning weights recorded during winter season. However, sex did not affect the pre-weaning performance of piglets.

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“…Not only do sows tend to have larger litters compared to gilts [2–4], piglets from sow litters tend to have decreased mortality and improved or superior performance throughout the nursery and grow-finish phases when compared to piglets from gilt litters [5–7]. The increased performance of pigs from sow litters compared to pigs from gilt litters is more valuable to the swine operation than the increased litter size from sows compared to gilts.…”

Section: Introductionmentioning

confidence: 99%

Genetic relationship between purebred and crossbred sow longevity

Abell

Fernando

Serenius³

et al. 2016

J Animal Sci Biotechnol

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BackgroundThe overall breeding objective for a nucleus swine selection program is to improve crossbred commercial performance. Most genetic improvement programs are based on an assumed high degree of positive relationship between purebred performance in a nucleus herd and their relatives’ crossbred performance in a commercial herd. The objective of this study was to examine the relationship between purebred and crossbred sow longevity performance. Sow longevity was defined as a binary trait with a success occurring if a sow remained in the herd for a certain number of parities and including the cumulative number born alive as a measure of reproductive success. Heritabilities, genetic correlations, and phenotypic correlations were estimated using THRGIBBS1F90.ResultsResults indicated little to no genetic correlations between crossbred and purebred reproductive traits. This indicates that selection for longevity or lifetime performance at the nucleus level may not result in improved longevity and lifetime performance at the crossbred level. Early parity performance was highly correlated with lifetime performance indicating that an indicator trait at an early parity could be used to predict lifetime performance. This would allow a sow to have her own record for the selection trait before she has been removed from the herd.ConclusionsResults from this study aid in quantifying the relationship between purebred and crossbred performance and provide information for genetic companies to consider when developing a selection program where the objective is to improve crossbred sow performance. Utilizing crossbred records in a selection program would be the best way to improve crossbred sow productivity.

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The impact of season, parity and breed on selected reproductive performance parameters of sows

Cited by 43 publications

References 29 publications

Development of Swine’s Digestive Tract Microbiota and Its Relation to Production Indices—A Review

Development of Swine’s Digestive Tract Microbiota and Its Relation to Production Indices—A Review

Pre-Weaning Growth Performance of Piglets at Smallholder Farms in Gauteng Province

Genetic relationship between purebred and crossbred sow longevity

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