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Cows on the family farm
\"An introduction to life on a farm for early readers. Find out what a cow eats, where it lives, and when calves are born\"-- Provided by publisher.
Book
Mother Cow, Mother India
India imposes stringent criminal penalties, including life imprisonment in some states, for cow slaughter, based on a Hindu ethic of revering the cow as sacred. And yet India is among the world's leading producers of beef, leather, and milk, industries sustained by the mass slaughter of bovines. What is behind this seeming contradiction? What do bovines, deemed holy in Hinduism, experience in the Indian milk and beef industries? Yamini Narayanan asks and answers these questions, introducing cows and buffaloes as key subjects in India's cow protectionism, rather than their treatment hitherto as mere objects of political analysis.
Emphasizing human–animal hierarchical relations, Narayanan argues that the Hindu framing of the cow as \"mother\" is one of human domination, wherein bovine motherhood is simultaneously capitalized for dairy production and weaponized by right-wing Hindu nationalists to violently oppress Muslims and Dalits. Using ethnographic and empirical data gathered across India, this book reveals the harms caused to buffaloes, cows, bulls, and calves in dairying, and the exploitation required of the diverse, racialized labor throughout India's dairy production continuum to obscure such violence. Ultimately, Narayanan traces how the unraveling of human domination and exploitation of farmed animals is integral to progressive multispecies democratic politics, speculating on the real possibility of a post-dairy society, based on vegan agricultural policies for livelihoods and food security.
eBook
Cows
\"A cow narrates this photo-illustrated book describing the body parts and behavior of cows on a farm. Includes photo glossary\"-- Provided by publisher.
Book
Molecular Approaches for Diagnosis, Therapy and Prevention of Cow´s Milk Allergy
Cow´s milk is one of the most important and basic nutrients introduced early in life in our diet but can induce IgE-associated allergy. IgE-associated allergy to cow´s milk can cause severe allergic manifestations in the gut, skin and even in the respiratory tract and may lead to life-threatening anaphylactic shock due to the stability of certain cow´s milk allergens. Here, we provide an overview about the allergen molecules in cow´s milk and the advantages of the molecular diagnosis of IgE sensitization to cow´s milk by serology. In addition, we review current strategies for prevention and treatment of cow´s milk allergy and discuss how they could be improved in the future by innovative molecular approaches that are based on defined recombinant allergens, recombinant hypoallergenic allergen derivatives and synthetic peptides.
Journal Article
Effects of milk protein variants on the protein composition of bovine milk
The effects of β-lactoglobulin (β-LG), β-casein (β-CN), and κ-CN variants and β-κ-CN haplotypes on the relative concentrations of the major milk proteins α-lactalbumin (α-LA), β-LG, αS1-CN, αS2-CN, β-CN, and κ-CN and milk production traits were estimated in the milk of 1,912 Dutch Holstein-Friesian cows. We show that in the Dutch Holstein-Friesian population, the allele frequencies have changed in the past 16 years. In addition, genetic variants and casein haplotypes have a major impact on the protein composition of milk and explain a considerable part of the genetic variation in milk protein composition. The β-LG genotype was associated with the relative concentrations of β-LG (A » B) and of α-LA, αS1-CN, αS2-CN, β-CN, and κ-CN (B>A) but not with any milk production trait. The β-CN genotype was associated with the relative concentrations of β-CN and αS2-CN (A2>A1) and of αS1-CN and κ-CN (A1>A2) and with protein yield (A2>A1). The κ-CN genotype was associated with the relative concentrations of κ-CN (B>E>A), αS2-CN (B>A), α-LA, and αS1-CN (A>B) and with protein percentage (B>A). Comparing the effects of casein haplotypes with the effects of single casein variants can provide better insight into what really underlies the effect of a variant on protein composition. We conclude that selection for both the β-LG genotype B and the β-κ-CN haplotype A2B will result in cows that produce milk that is more suitable for cheese production.
Journal Article
Environmental parameters to assessing of heat stress in dairy cattle—a review
Considering the significant influence of high ambient temperature and heat waves on the well-being and productivity of dairy cows, it is to be expected that, in the course of the next few decades, climate conditions for raising cattle will deteriorate. Research has shown that heat stress causes many negative consequences in terms of physiological and behavioural disturbances and significant losses in milk production. The effort to reduce the risk of the occurrence of heat stress among dairy cows also involves the search for new environmental methods of predicting heat stress. The aim of this paper is to review and systematise the current state of knowledge on the topic of the most widely used environmental methods of determining and predicting heat stress in dairy cows and also to show the directions of studies for the future. Based on an analysis of the most popular indexes, the study evaluated their suitability for forecasting heat stress related to maintenance systems and climate conditions for cows. However, the negative results of heat stress often appear with a delay, and a carry-over effect may be experienced (summer heat stress may affect the cows until autumn). The time of the year and breed of cows could have a big impact on when animals become sensitive to increasing heat loads. This likely can be a big contributor to the discrepancies within the different heat stress equations. It is essential to prevent the occurrence of heat stress, predicting it by observing local microclimate conditions and using meteorological forecasts. Thanks to these measures, a breeder may prepare and implement suitable solutions for protecting the animals.
Journal Article
Cows can't fly
After drawing a picture of cows that is blown away by a breeze, a child tries to convince others that cows are flying through the air.
Book
High‐production dairy cattle exhibit different rumen and fecal bacterial community and rumen metabolite profile than low‐production cattle
Our aim was to simultaneously investigate the gut bacteria typical characteristic and conduct rumen metabolites profiling of high production dairy cows when compared to low‐production dairy cows. The bacterial differences in rumen fluid and feces were identified by 16S rDNA gene sequencing. The metabolite differences were identified by metabolomics profiling with liquid chromatography mass spectrometry (LC‐MS). The results indicated that the high‐production dairy cows presented a lower rumen bacterial richness and species evenness when compared to low‐production dairy cows. At the phylum level, the high‐production cows increased the abundance of Proteobacteria and decreased the abundance of Bacteroidetes, SR1, Verrucomicrobia, Euryarchaeota, Planctomycetes, Synergistetes, and Chloroflexi significantly (p < 0.05). At the genus level, the rumen fluid of the high‐production group was significantly enriched for Butyrivibrio, Lachnospira, and Dialister (p < 0.05). Meanwhile, rumen fluid of high‐production group was depleted for Prevotella, Succiniclasticum, Ruminococcu, Coprococcus,YRC22, CF231, 02d06, Anaeroplasma, Selenomonas, and Ruminobacter significantly (p < 0.05). A total of 92 discriminant metabolites were identified between high‐production cows and low‐production cows. Compared to rumen fluid of low‐production dairy cows, 10 differential metabolites were found up‐regulated in rumen fluid of high‐production dairy cows, including 6alpha‐Fluoropregn‐4‐ene‐3,20‐dione, 3‐Octaprenyl‐4‐hydroxybenzoate, disopyramide, compound III(S), 1,2‐Dimyristyl‐sn‐glycerol, 7,10,13,16‐Docosatetraenoic acid, ferrous lactate, 6‐Deoxyerythronolide B, vitamin D2, L‐Olivosyl‐oleandolide. The remaining differential metabolites were found down‐regulated obviously in high‐production cows. Metabolic pathway analyses indicated that most increased abundances of rumen fluid metabolites of high‐yield cows were related to metabolic pathways involving biosynthesis of unsaturated fatty acids, steroid biosynthesis, ubiquinone and other terpenoid‐quinone biosynthesis. Most down‐regulated metabolic pathways were relevant to nucleotide metabolism, energy metabolism, lipid metabolism and biosynthesis of some antibiotics. Our aim was to simultaneously investigated the gut bacteria typical characteristic and conduct rumen metabolites profiling of high‐production dairy cows when compared to low‐production dairy cows. The aim of the study was to explore the typical gut bacteria and rumen typical metabolites matter of high‐production airy cows. After that, the results can be applied in the low‐yield dairy cows to improve their milking performance.
Journal Article