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Jun
16
Interpretive Summary: Effects of management strategies during early lactation and weaning on etiological agents of ovine subclinical mastitis and antimicrobial susceptibility of milk-derived bacterial isolates
The objectives of this study were to quantify the prevalence of subclinical mastitis, evaluate the impact of bedding treatments on subclinical mastitis, evaluate the efficacy of weaning treatments, and identify levels of antimicrobial resistance in milk-derived bacteria.
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Jun
16
Interpretive Summary: Evaluation of lipid sources and emulsifier addition on fat digestion of yellow-feathered broilers
Considering that commercial diets generally contain 3% to 8% added lipids to provide up to 20% metabolizable energy (ME) in broiler diets, the addition of emulsifier in diets was believed to improve the digestibility of fat.
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Jun
16
Interpretive Summary: Effects of dietary vitamin E and fat supplementation in growing-finishing swine fed to a heavy slaughter weight of 150 kg: II. Tissue fatty acid profile, vitamin E concentrations, and antioxidant capacity of plasma and tissue
The study evaluated vitamin E (VE) supplementation and fat source on fatty acid (FA) composition and VE concentrations in pigs. Three fat sources with distinctive fatty acid profiles were used; VE levels were 11 (the requirement estimate) and 200 (a high level to assure any responses could be seen) ppm.
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Jun
16
Interpretive Summary: Effect of limestone solubility on mineral digestibility and bone ash in nursery pigs fed diets containing graded level of inorganic phosphorus or increasing dose of a novel consensus bacterial 6-phytase variant
Microbial phytase is added to commercial pig diets to increase phosphorus (P) availability and reduce P excretion. It is known that an excess of calcium (Ca), mostly sourced from limestone, can affect phytase efficacy.
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Jun
16
Interpretive Summary: Evaluation of essential fatty acids in lactating sow diets on sow reproductive performance, colostrum and milk composition, and piglet survivability
Supplemental fat sources are an effective and widely accepted strategy to increase energy density of sow lactation diets that can also provide essential fatty acids such as linoleic acid (LA) and α-linolenic acid (ALA). Currently, the effects of supplemental LA and ALA provided shortly before farrowing on colostrum and milk composition are not fully understood.
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Jun
16
Interpretive Summary: Short Communication: Influence of estrus activity and reproductive tract size and position scores on fertility in Bos indicus and Bos taurus suckled beef cows
The livelihood of a cow-calf producer relies on reproductively sound cattle that give birth to live offspring once a year. Two factors, pregnancy rate and pregnancy loss, are informative measures of fertility.
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Jun
09
Interpretive Summary: VTag: a semi-supervised pipeline for tracking pig activity with a single top-view camera
Collecting detailed measurements of animals through cameras has become an important focus with the rising demand for meat production in the swine industry.
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Jun
09
Interpretive Summary: Effects of yeast-based pre- and probiotics in lactation diets of sows on litter performance and antimicrobial resistance of fecal Escherichia coli of sows
Feeding sows live yeast and yeast extracts from day 110 of gestation through lactation tended to increase lactation feed intake but did not affect any other sow or litter performance criteria.
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Jun
09
Interpretive Summary: Influence of yeast-based pre- and probiotics in lactation and nursery diets on nursery pig performance and antimicrobial resistance of fecal Escherichia coli
Feeding sows a diet containing live yeast and yeast extract from day 110 of gestation through weaning resulted in progeny that were heavier at weaning and had increased average daily gain and average daily feed intake throughout the nursery period.
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Jun
09
Interpretive Summary: Potential effect of two Bacillus probiotic strains on performance and fecal microbiota of breeding sows and their piglets
The aim of the present study was to determine if the inclusion of probiotic microorganisms in the mother’s diet during gestation and the lactation period is capable of modifying the performance of mothers and piglets and the possible effect on the intestinal health of piglets after separation from the mother.
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Jun
09
Interpretive Summary: Cereal grain fiber composition modifies phosphorus digestibility in grower pigs
The study assessed effects of cereal grains varying in fermentable carbohydrates on non-phytate-P and phytate-P. Phytate is the major binding form of P in plant seed and is incompletely degraded.
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Jun
09
Interpretive Summary: Influence of hempseed cake inclusion on growth performance, carcass characteristics, feeding behavior, and blood parameters in finishing heifers
This experiment evaluated the effects of dietary inclusion of hempseed cake in comparison with dried corn distillers grains plus solubles (DDGS) on growth performance, feeding behavior, carcass characteristics, and blood parameters in finishing heifers.
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Jun
09
Interpretive Summary: Corn processing, flake density, and starch retrogradation influence ruminal solubility of starch, fiber, protein, and minerals
Grain processing has been used for decades to improve digestibility of finishing cattle diets, leading to improved growth performance and feed efficiency.
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Jun
02
Interpretive Summary: Effect of maternal dietary starch-to-fat ratio and daily energy intake during late pregnancy on the performance and lipid metabolism of primiparous sows and newborn piglets
Given the growing concern regarding nutrition during gestation, the present study was designed to investigate the effects of energy on the reproductive performance and lipid metabolism of primiparous sows.
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Jun
02
Interpretive Summary: Maternal immune activation and dietary soy isoflavone supplementation influence pig immune function but not muscle fiber formation
Gestational health challenges may influence growth performance and immunity of offspring pigs during postnatal life. In particular, porcine reproductive and respiratory syndrome virus (PRRSV) is endemic in the U.S. herd, but its effects on surviving offspring pigs are largely unknown.
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Jun
02
Interpretive Summary: Effects of supplementation rate of an extruded dried distillers’ grains cube fed to growing heifers on voluntary intake and digestibility of bermudagrass hay
Growing cattle are oftentimes provided supplemental concentrate as a source of protein and energy in order to meet performance goals when consuming low-quality forages. The effects of supplemental concentrate on forage intake vary, which may be related to the quality of forage and the characteristics of the supplement being evaluated.
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Jun
02
Interpretive Summary: Maternal nutrient restriction and over-feeding during gestation alter expression of key factors involved in placental development and vascularization
Too little or too much food during gestation can lead to poor growth and health of the resulting offspring. The placenta is an important source of nutrient supply for the fetus and poor maternal diet can impair placenta growth and function.
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Jun
02
Interpretive Summary: Naturally occurring androgen excess cows are present in dairy and beef herds and have similar characteristics to women with PCOS
Androgen steroid hormones, normally present in the male, but produced in excess in the female, can result in inflammation and dysfunction of tissues, which, in turn, can lead to ovulatory dysfunction.
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Jun
02
Interpretive Summary: Short Communication: Influence of estrus activity and reproductive tract size and position scores on fertility in Bos indicus and Bos taurus suckled beef cows
The livelihood of a cow-calf producer relies on reproductively sound cattle that give birth to live offspring once a year. Two factors, pregnancy rate and pregnancy loss, are informative measures of fertility.
Read more
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Jun
02
Interpretive Summary: Medroxyprogesterone acetate in reindeer bulls: testes histology, cfos activity in the brain, breeding success, and semen quality
A single 400 mg dose of MPA given to reindeer bulls just before the onset of rut eliminates aggressive behavior and suppresses androgen concentrations without dramatic differences in the gross or histological structure of the testes within the first 30 d of treatment.
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