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Animals, Volume 9, Issue 6

June 2019 - 106 articles

Cover Story: Zoos must promote animals’ welfare. One way to do that is by encouraging cooperative interactions between keepers and zoo animals. Effective communication between them should use channels that are most useful to the animals. We looked at whether captive orangutans understood keepers’ instructions when they employed words only, gazes only, gestures only, or all signal types combined. We found that orangutans only needed gestures to respond to the keepers’ instructions. Why is that the case? We found no indication that gestures providing iconicity or even pointing could help orangutans to acquire associations between a new gesture and referent. Our results suggest that among human communicative signals, captive orangutans would prefer gestures. Why this is the case should be the focus of future research. View this paper
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Articles (106)

  • Article
  • Open Access
26 Citations
5,756 Views
14 Pages

21 June 2019

A participatory animal-breeding program was applied to 9 commercial Awassi sheep flocks in Jordan. This study aimed to assess the influence of Beta-lactoglobulin (β-LG), Prolactin (PRL), and Kappa casein (CSN3) genes, genotypes and their interac...

  • Article
  • Open Access
12 Citations
6,866 Views
14 Pages

Comparative Personality Traits Assessment of Three Species of Communally Housed Captive Penguins

  • Giovanni Quintavalle Pastorino,
  • Richard Preziosi,
  • Massimo Faustini,
  • Giulio Curone,
  • Mariangela Albertini,
  • Dawn Nicoll,
  • Lorna Moffat,
  • Romain Pizzi and
  • Silvia Mazzola

20 June 2019

Understanding animal personalities has notable implications in the ecology and evolution of animal behavior, but personality studies can also be useful in optimizing animal management, with the aim of improving health and well-being, and optimizing r...

  • Communication
  • Open Access
33 Citations
5,989 Views
5 Pages

Genetic Polymorphism of β-Casein Gene in Polish Red Cattle—Preliminary Study of A1 and A2 Frequency in Genetic Conservation Herd

  • Anna Cieślińska,
  • Ewa Fiedorowicz,
  • Grzegorz Zwierzchowski,
  • Natalia Kordulewska,
  • Beata Jarmołowska and
  • Elżbieta Kostyra

20 June 2019

Although there is growing interest in Red cow’s milk in Poland, to date there are few reports investigating the characteristics of milk components in the studied population. Particular emphasis on milk proteins is advised, since β-casein i...

  • Article
  • Open Access
11 Citations
6,549 Views
17 Pages

Isolation and Culture of Skin-Derived Differentiated and Stem-Like Cells Obtained from the Arabian Camel (Camelus dromedarius)

  • Islam M. Saadeldin,
  • Ayman Abdel-Aziz Swelum,
  • Ahmed E. Noreldin,
  • Hammed A. Tukur,
  • Aaser M. Abdelazim,
  • Mosleh M. Abomughaid and
  • Abdullah N. Alowaimer

20 June 2019

Elite camels often suffer from massive injuries. Thus, there is a pivotal need for a cheap and readily available regenerative medicine source. We isolated novel stem-like cells from camel skin and investigated their multipotency and resistance agains...

  • Article
  • Open Access
15 Citations
10,712 Views
13 Pages

Food Preferences in Cats: Effect of Dietary Composition and Intrinsic Variables on Diet Selection

  • Raúl A. Alegría-Morán,
  • Sergio A. Guzmán-Pino,
  • Juan I. Egaña,
  • Valeria Sotomayor and
  • Jaime Figueroa

19 June 2019

A ten-year database of food preference tests (n = 1021; period 2007−2017) was used to explore the feeding behavior of domestic cats. Principal component (PC) analysis and linear regression between food nutrients and preferences (for the most pr...

  • Article
  • Open Access
6 Citations
4,330 Views
11 Pages

The Order of Grass and Maize Silage Supplementation Modifies Milk Yield, Grazing Behavior and Nitrogen Partitioning of Lactating Dairy Cows

  • Ignacio E. Beltrán,
  • Omar Al-Marashdeh,
  • Ana R. Burgos,
  • Pablo Gregorini,
  • Oscar A. Balocchi,
  • Fernando Wittwer and
  • Rubén G. Pulido

19 June 2019

The aim of this study was to evaluate the effects of the order of grass silage (GS) and maize silage (MS) supplementation on milk yield, grazing behavior and nitrogen (N) partitioning of lactating dairy cows during autumn. Thirty-six Holstein-Friesia...

  • Article
  • Open Access
28 Citations
4,667 Views
14 Pages

Arachidonic Acid Regulation of Intracellular Signaling Pathways and Target Gene Expression in Bovine Ovarian Granulosa Cells

  • Nina Zhang,
  • Liqiang Wang,
  • Guoya Luo,
  • Xiaorong Tang,
  • Lizhu Ma,
  • Yuxin Zheng,
  • Shujie Liu,
  • Christopher A. Price and
  • Zhongliang Jiang

19 June 2019

In the present study, AA was used to challenge bovine ovarian granulosa cells in vitro and the related parameters of cellular and molecular biology were measured. The results indicated that lower doses of AA increased survival of bovine granulosa cel...

  • Article
  • Open Access
17 Citations
3,655 Views
8 Pages

A Novel SNP in EIF2AK4 Gene Is Associated with Thermal Tolerance Traits in Chinese Cattle

  • Kaiyue Wang,
  • Yanhong Cao,
  • Yu Rong,
  • Qingqing Ning,
  • Peng Jia,
  • Yongzhen Huang,
  • Xianyong Lan,
  • Ruihua Dang,
  • Hong Chen and
  • Chuzhao Lei

19 June 2019

Eukaryotic translation initiation factor 2-alpha kinase 4 (EIF2AK4, also known as GCN2), which pertains to the family of serine–threonine kinase, is involved in oxidative stress and DNA damage repair. A missense single-nucleotide polymorphism (...

  • Commentary
  • Open Access
11 Citations
5,176 Views
6 Pages

US Farm Animal Welfare: An Economic Perspective

  • Glynn T. Tonsor and
  • Christopher A. Wolf

18 June 2019

The topic of farm animal welfare (FAW) is both complex and controversial, and inherently involves expertise and views from multiple disciplines. This article provides a summary of economic perspectives on FAW issues in the United States. Practices re...

  • Article
  • Open Access
5 Citations
3,771 Views
16 Pages

Remote Identification of Sheep with Flystrike Using Behavioural Observations

  • Emily P. Grant,
  • Sarah L. Wickham,
  • Fiona Anderson,
  • Anne L. Barnes,
  • Patricia A. Fleming and
  • David W. Miller

18 June 2019

Flystrike is a major problem affecting sheep in Australia. Identification of ‘flystruck’ individuals is crucial for treatment; but requires labour-intensive physical examination. As the industry moves toward more low-input systems; there...

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Animals - ISSN 2076-2615Creative Common CC BY license