Agriculture

Associations between calf mortality during days 1 to 90 and herd-level cow and production variables in large Swedish dairy herds
The aim of the study was to describe large Swedish dairy herds with high and low mortality risk in calves during the first 90 d of life, using herd-level data, and to evaluate if high calf mortality risk is associated with other herd-level management variables that influence cow health. A total of 57 Swedish dairy herds met the inclusion criteria of affiliation to the Swedish official milk reco...


Can routinely recorded reproductive events be used as indicators of disease emergence in dairy cattle? An evaluation of 5 indicators during the emergence of bluetongue virus in France in 2007 and 2008
In response to increasing risks of emerging infectious diseases, syndromic surveillance can be a suitable approach to detect outbreaks of such diseases across a large territory in an early phase. To implement a syndromic surveillance system, the primary challenge is to find appropriate health-related data. The objective of this study was to evaluate whether routinely collected dates of reproduc...
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First estimates of age and growth of juvenile black anglerfish (Lophius budegassa), in north-eastern Atlantic waters
Growth increments in the lapilli otoliths of the black anglerfish (Lophius budegassa) were used to investigate its early life history. Assuming that the primary increments are deposited daily, age and hatch dates were determined by counting these increments in the lapilli of 33 juvenile fish collected during autumn bottom trawl surveys in the Bay of Biscay. The estimated ages of juveniles range...
Effect of Breeding Activity on the Microflora of the External Genitalia and in the Semen of Stallions, and the Relationship Between Micro-organisms on the Skin and on the External Genitalia
A possible role of breeding activities in the composition of the microbial population in stallions' external genitalia (EG) and the relationship between micro-organisms colonizing the skin of the abdomen and the ones colonizing the EG have not been studied. In experiment 1, EG microbiological samples were collected from 41 stallions used for both natural cover and semen collection (BST) and fro...


Successful Use of Endoscopy for Transcervical Cannulation Procedures in the Goat
Two methods for transcervical cannulation of the goat were evaluated during a contraception study in 15 adult female Nigerian dwarf and African pygmy goats. Twenty-four transcervical cannulation procedures were conducted in which seven females underwent the procedure 2–3 times. Initially, a rigid 4-mm stainless steel cannula and external light source were used in 19 procedures to introduce th...
The Induction of a Secondary Corpus Luteum on Day 12 Post-Ovulation can Delay the Time of Luteolysis in High-Producing Holstein Cows
Luteolysis before the time of maternal recognition of pregnancy is one cause of low fertility in high-producing dairy cows. The objective of this study was to assess whether induction of a secondary corpus luteum (CL) late in the luteal phase would delay the time of luteolysis. Twenty high-producing Holstein cows were synchronized to ovulation (Day 0) with the Ovsynch protocol and received hCG ...

Cryopreservation of Ram Semen in Extenders Containing Soybean Lecithin as Cryoprotectant and Hyaluronic Acid as Antioxidant
A soybean lecithin-based extender supplemented with hyaluronic acid (HA) was assayed for effectiveness to improve the quality of frozen–thawed ram semen. HA has not been tested yet in an extender containing soybean lecithin for freezing ram semen. Thus, the aim of this study was to analyse the effects of soybean lecithin at 1% or 1.5% along with HA at 0, 0.5 and 1 mg ml-1 in a Tris-based ex...
Cultivar-specific differences in heavy metal (Cd, Cr, Cu, Pb, and Zn) concentrations in water spinach (Ipomoea aquatic‘Forsk’) grown on metal-contaminated soil
This study aimed to investigate the cultivar differences and the involved rhizosphere mechanisms in multiple heavy metal (i.e., Cd, Cr, Cu, Pb, and Zn) accumulation in water spinach. Pot experiments were performed on long-term contaminated soil to determine heavy metal accumulation in 15 water spinach cultivars. A hydroponics experiment was extended using Ca channel blocker LaCl3. Nearly two-fo...

Effects of freeze–thaw cycles on the soil nutrient balances, infiltration, and stability of cyanobacterial soil crusts in northern China
Freeze–thaw fluctuation is a natural phenomenon, which is frequently encountered by biological soil crusts (BSCs) in late autumn and early spring in cold deserts. The objective of our study was to investigate the effects of freeze–thaw cycles (FTCs) on the soil nutrient balances, infiltration, and stability of cyanobacterial soil crusts (CSCs) in the temperate desert region. A controlled in...
Hollow Lives: Women Left Behind in Rural China
This paper explores the situation of women left behind in villages when men out-migrate for work and what it implies for gender relations in rural China. It is based on questionnaire survey data that covers 400 left-behind women and extensive interviews in 10 rural communities. It reveals how the women take on multiple family responsibilities including mainly family care and agricultural produc...

Long-term climate forcings to assess vulnerability in North Africa dry argan woodlands
North African dry woodlands constitute mediterranean climatic ecotone ecosystems of vital importance for human livelihoods and local biodiversity. To improve the basis for managing these key ecosystems, we selected a Tertiary relict woodland (Argania spinosa) in order to clarify the sensitivity to long-term climate change (the present, the past glacial-interglacial cycle and under future scenar...
Nut traits and nutritional compositions of hazelnut (Corylus avellana L.) as influenced by zinc fertilization
Zinc (Zn) is an essential element for plants and its deficiency is a widespread phenomenon throughout the world, causing decreased yields and nutritional quality. The effect of zinc fertilization on some nut traits and nutritional compositions of ‘Tombul’ hazelnut (Corylus avellana L.) variety cultivated in the Black Sea Region of Turkey were investigated and the contributions of these nuts...
Firmness prediction in Prunus persica ‘Calrico’ peaches by Visible/short wave near infrared spectroscopy and acoustic measurements using optimized linear and non-linear chemometric models
In this work, near infrared spectroscopy (NIR) and an acoustic measure (AWETA) (two non-destructive methods) were applied in Prunus persica fruit ‘Calrico’ (n = 260) to predict Magness-Taylor (MT) firmness. Separate and combined use of these measures was evaluated and compared using PLS and LS-SVM regression methods. Also, a Mutual Information (MI)-based variable selection method, seeki...
Economic comparison between offshore and inshore aquaculture production systems of European sea bass in Italy
Offshore production system is predicted to increase in the near future driven by the lack of coastal space and lower environmental impacts. The aim of this paper has been to evaluate the economic performance of offshore production system respect to inshore one, by comparing net present value (NPV), discounted payback time (DPBT) and internal rate of return (IRR) of two Italian mariculture farms...