&lt;b&gt;Appropriate mathematical models to describe the lactation curves of milk production traits of Iranian Holstein dairy cattle

Naderi, Yousef

doi:10.4025/actascianimsci.v40i1.37895

Cited by 2 publications

(2 citation statements)

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“…Considering the importance of the above issues and the lack of information, the first studies on the health of donkeys for milk production should take into account characteristics of age, breed, body condition score, local climate, quality of pasture and protein in the diet, somatic cell count, milk collection day and lactation period, including the use of mathematical models to establish the lactation curves. Mathematical models were already applied in donkeys for dairy (Bordonaro et al, 2013) and dairy cows (Naderi, 2018).…”

Section: Parasitic Diseases In Donkeys: a First Look Into The Data Collectionmentioning

confidence: 99%

Health evaluation of donkeys: parasite control methods and a model for challenge infections

Molento

Vilela

2021

Braz. J. Vet. Res. Anim. Sci.

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Donkeys, mules, and asses are domestic animals of worldwide distribution, found in all regions of Brazil. Although more health data is needed from these species, some sectors of today’s society are exploring alternatives to use these animals for milk production and the use of donkeys in social events and onotherapy. Donkeys (Equus asinus) are used in many everyday activities, but the animals need better welfare conditions. Although it is well known that endoparasite infections (i.e. cyathostomins, Strongylus spp., Parascaris sp.) can harm the clinical condition of the animals, there are limited clinical and laboratory supporting data, including registered therapeutic drugs for their control. The objective of the present work was to review the existing literature about parasite infections of donkeys, including their clinical implications, and the drug efficacy test to help practitioners improve their health management programs. To assist with that, we have developed a questionnaire to identify the risk factors of donkey farming, which is presented here in English and in Portuguese. Lastly, the present article also includes an original simulation using the susceptible-infected-recovered (SIR) model with low, moderate, and severe scenarios to help visualize the risk of parasite infections. The SIR model was based on the disease condition of donkeys in Brazil, using transient interaction levels from 0.0015 to 0.0025, infectivity levels from 0.10 to 0.40, and distinct recovery rates (R) from 0.01 to 0.08. As milk production is an expanding new activity worldwide, we want to emphasize that the first comprehensive studies must take into account differences in animal age, breed, and body condition score, local climate, pasture quality, day of sampling, and the period of lactation within the lactation curve to measure the health condition of donkeys. These data are considered important and will then be correlated to the parasite egg/oocyst (EPG or OoPG) counts in the feces using coproparasitological protocols (McMaster and Mini-FLOTAC), and even DNA-based techniques, to establish a novel data bank for donkeys. Target selective treatment has been proposed to be used as a routine in horses and will also be implemented in donkeys. This technique aims to reduce the number of anthelmintic treatments and, consequently, lessen parasite selection for resistance. The dynamic variations found by the SIR model are discussed in the text and should be taken into account when deciding the best health management implementation and parasite control programs. We think that more studies are needed to evaluate the basic physiological performance of donkeys in tropical areas to better understand their thermal adaptation, assuming that the animals are kept under acceptable clinical, nutritional, and housing conditions to express their resilient behavior. Cases of neglect and ill-treatment of animals must also be studied in infected conditions as well as their negative impacts. These strategies reinforce the concept of holistic farming with the possibility to improve specific informations, thereby improving the welfare of the donkeys.

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Section: Parasitic Diseases In Donkeys: a First Look Into The Data Collectionmentioning

confidence: 99%

Health evaluation of donkeys: parasite control methods and a model for challenge infections

Molento

Vilela

2021

Braz. J. Vet. Res. Anim. Sci.

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“…The mathematical understanding of patterns is fundamental in the daily practice of veterinary medicine. For example, mathematics is used in various aspects of veterinary medicine, including drug dosage and epidemiology [11][12][13]. Furthermore, understanding mathematics helps veterinarians to develop applications such as new epidemiological surveillance models and risk assessments; it also contributes to decision making with regard to epidemic pathologies [5].…”

Section: Introductionmentioning

confidence: 99%

An Online Pattern Recognition-Oriented Workshop to Promote Interest among Undergraduate Students in How Mathematical Principles Could Be Applied within Veterinary Science

et al. 2022

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Knowing the importance of mathematics and its relationship with veterinary medicine plays an important role for students. To promote interest in this relationship, we developed the workshop “Math in Nature” that utilizes the surrounding environment for stimulating pattern-recognition and observational skills. It consisted of four sections: A talk by a professional researcher, a question-and-answer section, a mathematical pattern identification session, and a discussion of the ideas proposed by students. The effectiveness of the program to raise interest in mathematics was evaluated using a questionnaire applied before and after the workshop. Following the course, a higher number of students agreed with the fact that biological phenomena can be explained and predicted by applying mathematics, and that it is possible to identify mathematical patterns in living beings. However, the students’ perspectives regarding the importance of mathematics in their careers, as well as their interest in deepening their mathematical knowledge, did not change. Arguably, “Math in Nature” could have exerted a positive effect on the students’ interest in mathematics. We thus recommend the application of similar workshops to improve interests and skills in relevant subjects among undergraduate students.

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<b>Appropriate mathematical models to describe the lactation curves of milk production traits of Iranian Holstein dairy cattle

Cited by 2 publications

References 22 publications

Health evaluation of donkeys: parasite control methods and a model for challenge infections

Health evaluation of donkeys: parasite control methods and a model for challenge infections

An Online Pattern Recognition-Oriented Workshop to Promote Interest among Undergraduate Students in How Mathematical Principles Could Be Applied within Veterinary Science

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