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Page 52 of articles about genetics-reproduction

Breakthrough in livestock sex selection

Ovasort Limited, which is based in Cardiff, has discovered sex-linked proteins on the surface of sperm cells of both pigs and cattle, and has developed a prototype product to identify and separate the male and female cells for each sex in both species.

19-fondo

ManagementArticle

Farrowing programming II

The gestation period in the majority of sows is usually around 113 to 115 days. However, a percentage of sows can farrow normally up to 3 days before or after.

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How to stimulate the sow during Artifitial Insemination

Aroused sows, Danish scientists have discovered, increases by several percentage points impregnation by artificial insemination. From TED Talk shared knowledge podcast.

United Kingdom - Scottish pig industry unveils new eahlth project

The Scottish pig industry and Quality Meat Scotland are taking action to promote high health status in the national pig herd and avoid thousands of pounds of losses through disease introduction.

Intra-uterine insemination with low numbers of frozen–thawed boar spermatozoa in spontaneous and induced ovulating sows under field conditions

The present study was conducted to evaluate non-return rate (NR), farrowing rate (FR), and number of total pigs born/litter (TB) of weaned sows after intra-uterine insemination (IUI) using low numbers of frozen–thawed (FT) spermatozoa.

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Longitudinal field study to assess sow level risk factors associated with stillborn piglets

The aim of this study was to identify risk factors for stillborn piglets at sow level in commercial pig herds in northern Belgium. In total, 545 sows of 22 pig herds were included in the study. Stillborn piglets were observed in 48.3% of the litters and the mean stillbirth rate of the sows was 7.5%.

Post-weaning Altrenogest treatment in primiparous sows; the effect of duration and dosage on follicular development and consequences for early pregnancy

Post-weaning treatment with Altrenogest of first litter sows influenced follicle size and shortened the follicular phase, but did not affect ovulation rate or early embryonic development.

Positive sow in heat

A sow shows the typical behaviour of estrus and is mated by a boar.

Post-insemination level of feeding does not influence embryonic survival and growth in highly prolific gilts

This study was designed to investigate the influence of a high level of feeding during early gestation on embryonic survival and variability of embryonic development in hyperprolific LW gilts.

NutritionAbstract

Dietary protein intake and stage of lactation differentially modulate amino acid transporter mRNA abundance in porcine mammary tissue

Mammary gene expression of AA transporter is not affected by dietary protein intake.

TOPIGS Philippines starts InGene partnership with biggest pig producer

TOPIGS Philippines and Monterey Foods Corporation (MFC), the biggest pig operation in the Philippines, have formally signed an InGene partnership agreement. Now TOPIGS can start to supply pig genetics to Monterey, starting in their South Mindanao Live Operations.

Denmark - The Minister of Agriculture studies proposals to diminish the piglet mortality rate

In Denmark, several studies about piglet mortality puts the rate at 24% during the first 4 weeks of life. These results have been deemed “unacceptable” by the Danish Minister of Agriculture, Henrik Hoegh.

June 2010: heat detection

AgFeed Industries, Inc. Announces Stocking Agreement for Xinyu Production Pod

AgFeed Industries, Inc., one of the largest independent hog production and animal nutrient companies in China, today announced an agreement on terms for the stocking of the first phase of the Xinyu production pod starting in the fourth quarter of 2010 with PIC (Pig Improvement Company), a division of Genus PLC.

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Proportion of the litter farrowed, litter size, and progesterone and estradiol effects on piglet birth intervals and stillbirths

Stillbirth in swine ranges from 2 to 9%, resulting in a significant loss of piglets. Previous studies clearly indicate a relationship between prolonged birth intervals and stillbirth, but factors influencing birth intervals are not fully known. To characterize birth intervals and stillbirth, farrowing was recorded during three farrowing seasons.

Thawing boar semen in the presence of seminal plasma: Effects on sperm quality and fertility

The present studies confirm an adverse effect of inseminating FT sperm on sperm quality and sow fertility but suggest that thawing FT sperm in 50% SP may partially alleviate these adverse effects.