Plant reproductive trade-offs are thought to be caused by resource limitations or other constraints, but more empirical support for these hypotheses would be welcome. Additionally, quantitative characterization of these trade-offs, as well as consideration of whether they are linear, could yield additional insights. We expanded our flower removal research on lowbush blueberry (Vaccinium angusti...

Reproductive efficiency is a crucial factor in the economic viability of small ruminant exploitation. In spite this, few producers utilize available reproductive technologies related to hormonal interaction, which are vital for sustainability their operations. Therefore, this review aimed investigate potential effects alterations and hormone interactions during pregnancy lactation determine adv...

This is the first description of the polymorphisms of arylalkylamine-N-acetyltransferase (AA-NAT) gene in Indian goats with different reproductive traits (twinning percentage and age of sexual maturity). Based on the important role of AA-NAT in reproduction, it is considered as a possible candidate gene for this trait. Two novel synonymous SNPs, C825T (exon2) and C1249T (exon3) were identified....

Using the PorcineSNP80 BeadChip, we performed a genome-wide association study for seven reproductive traits, including total number born, number born alive, litter birth weight, average birth weight, gestation length, age at first service and age at first farrowing, in a population of 1207 Large White pigs. In total, we detected 12 genome-wide significant and 41 suggestive significant SNPs asso...

Profits for commercial pork producers vary in part because of sow productivity or sow productive life (SPL) and replacement costs. During the last decade, culling rates of sows have increased to more than 50% in the United States. Both SPL and culling rates are influenced by genetic and nongenetic factors. A whole-genome association study was conducted for pig lifetime reproductive traits, incl...

Context Australian sheep breeding values (ASBVs) for lambing ease (LE) are estimated by Sheep Genetics, using a threshold animal model at the lamb level, in tri-variate analysis that includes data on birth weight, gestation length and score. The implications of these traits survival, or use other indirect to improve accuracy ASBVs LE, not currently being considered. Ultimately, it is desirable ...

Context Commercial beef and sheep producers have adopted using condition score for management of cows ewes to maximise productivity. Significant premiums are being paid bulls rams with higher-fat breeding values based on young animal measurements, the aim increased resilience in adult female progeny. Aims The this study was quantify relationship between body muscle fat also genetic variation th...

The study was conducted at Ardaita Agricultural Technical Vocational Education Training (ATVET) college dairy farm, to evaluate the reproductive performance of Holstein Friesian and its crosses with Boran cattle breeds. Data collected between 2000 and 2015 on reproductive traits (n=2632) were studied and analyzed using general linear model procedure. The overall estimated means for age at first...