Neuwiedia malipoensis, a New Species (Orchidaceae, Apostasioideae) from Yunnan, China
4
Citation
7
Reference
10
Related Paper
Citation Trend
Abstract:
Neuwiedia malipoensis Z. J. Liu, L. J. Chen & Ke Wei Liu (Orchidaceae, Apostasioideae), from southeastern Yunnan Province in China, is described, illustrated, and photographed. The new species is characterized by a true corolla lip, which is widely obovate and concave, with a subterete claw at the base and a fleshy linear callus extending from its claw to the upper portion. By these features it can be easily distinguished from its allied N. veratrifolia Blume, N. balansae Baill. ex Gagnep., and other species of this genus.Keywords:
Orchidaceae
Claw
SUMMARY In order to assess associations between claw pathologies, claw signature and cow gait, 24 dairy cows were examined during six weeks. The health of the claws was not extremely bad and only few cows had a gait score resulting in classification as lame. More detailed individual associations between claw pathologies, claw signature and cow gait will be presented at the conference. Results indicate that there is an association between gait scores and the duty cycles of different legs. Further research is needed to support these findings.
Claw
Hoof
Cite
Citations (0)
Sobralia abadorum (Orchidaceae) - a new orchid species from Peru Sobralia Ruiz & Pav. is one of the largest genus in Orchidaceae. It comprises about 150 species distributed from Mexico to Bolivia. In this paper, a new species of Sobralia from Peru, S. abadorum , is described and illustrated. Its taxonomic affinity is briefly discussed. An analysis of ITS sequences indicates an isolate position of this new species.
Orchidaceae
Cite
Citations (2)
Conservation-dependent species
Data deficient
Cite
Citations (116)
Abstract The aim of this study was to examine the relationship between body condition and claw diseases in dairy cows. The data used in this study were obtained during two sessions of routine orthopaedic treatment and hoof trimming on a dairy farm in Eastern Slovakia. In the spring and autumn terms, 482 dairy cows were examined for claw diseases and their body conditions were recorded. Out of the 482 dairy cows, 56 % were affected by one or more claw diseases in one or more legs. Digital dermatitis and sole ulcers were the most often detected claw diseases found in this study. The dairy cows with a low body condition score (BCS < 3) showed a higher prevalence of claw diseases (P < 0.05) than the cows with a body condition score greater than 3. However, this difference could not be found when infectious diseases of the claws (digital dermatitis, foot rot, and interdigital dermatitis) were analysed. The results of this study allowed us to conclude that the dairy cows with a lower grade of body condition suffered more from non-infectious claw diseases (sole ulcer, white line diseases).
Claw
Hoof
Laminitis
Foot rot
Foot (prosody)
Cite
Citations (1)
Mites occupy a wide range of ecological niches and are good models to investigate correlations of morphological structures and ecology in arthropods. Here we compare tarsal claw shape of three terrestrial oribatid mite species with different ecological backgrounds. By means of geometric morphometrics we describe shape, size and development of the tarsal claw of the monodactyl mite species Lamellovertex caelatus and Platynothrus peltifer, and the tridactyl Melanozetes meridianus. After analysis of juvenile and adult mites we can distinguish the euryoecious P. peltifer and the alpine M. meridianus with similar claw curvatures from the saxicolous L. caelatus with considerably less curved claws. The claw height of P. peltifer, on the other hand, is remarkably higher than in the other two species. Despite these differences, no correlation between claw characteristics and environmental factors can be inferred. During the development of the mites, claw curvature and shape remain constant from protonymph to adult and claw size increases direct proportionally with body growth in all studied species. Neither the monodactyl nor the tridactyl species show any specific changes in claw characteristics.
Claw
Morphometrics
Tarsus (eyelids)
Cite
Citations (5)
The purpose of this study was to develop a model for a routine genetic evaluation of claw health traits and to develop an index including data on claw health and conformation traits. Claw health data comprised observations on 40,536 dairy cows of claw traits recorded by claw trimmers. Claw health traits scored were sole hemorrhage (SH), digital dermatitis (DD), interdigital dermatitis (ID), wall ulcer (WU), sole ulcer (SU), interdigital hyperplasia (IH), and white line disease (WL). A combined claw health trait was added as a trait to the data, combining all claw disorders. Observations on 5 feet and leg conformation traits on 41,048 animals were evaluated as predictive traits for claw health. These conformation traits were rear leg side view, rear leg rear view, foot angle, locomotion, and feet and legs. Prevalence of claw disorders ranged from 3% (WU) to 38% (SH). Overall, 69% of the animals had at least one claw disorder. Estimated heritabilities for claw health traits ranged from 0.01 (WU) to 0.13 (IH), and repeatabilities (within and across lactation) ranged from 0.15 (WU) to 0.57 (IH). Genetic correlations of claw health traits in parity 1 and parities ≥2 ranged from 0.72 to 1.00. Estimated genetic correlations among claw health traits ranged from -0.35 to 0.88 and between claw health and conformation traits ranged from -0.58 to 0.41. The breeding goal for claw health was to reduce costs due to claw disorders. The economic index for claw health, which included claw health and feet and leg conformation traits, had a reliability of 59% for an average progeny-tested bull in the Netherlands. The prevalence of claw disorders can be reduced up to 0.7% per year with selection on claw health only.
Claw
Foot (prosody)
Cite
Citations (98)
The influence of regular claw-trimming on the occurrence and prevalence of claw disorders was examined on a total of 164 dairy cows (Simmental, Red Friesian, Holstein Friesian). Ten dairy farms in the Austrian province of Salzburg were used for this study. Three examinations of the claws were carried out with an interval of six months in between to find out claw disorders. The results were recorded according to a claw scoring system. The claw scores were in the range of other studies using the same scoring system. The median of the claw scores at the beginning of the study was 27 in the tied stall group compared with 37 in the loose housing group, remaining at that level in the first group and falling to 25 in the second group. All in all, the positive effect of regular claw trimming was more pronounced in the loose housing group than in the tethered housing group.
Claw
Trimming
Cite
Citations (1)
Claw
Hoof
Cite
Citations (34)
Lameness due to claw overgrowth remains one of the main welfare challenges in dairy goat farms. Although claw trimming is a crucial part of the solution, most times there is a delay in its implementation, with no perceived consequences. The goal of this cross-sectional study was to assess the correlation between the size and deformation of dairy goats claws with lameness score. The width and length of the claws of 38 adult dairy goats were taken and classified as deformed (DEF) or non-deformed (NO_DEF). Lameness was also scored in the majority of the animals assessed for claw deformation. Deformation of at least one claw was present in 34 animals (89% of the total sample). From the 34 goats with deformed claws, 33 presented at least one deformed rear claw and 18 presented at least one deformed front claw. From the 152 claws assessed 58% were deformed (n = 88), of which 19% (n = 29) were front claws and 39% were rear claws (n = 59). Increased width of the front claws was associated with increased likelihood of having deformation with odds of 1.24, and the increased length explained 16% of the variation in lameness scores. A positive relation between lameness score and the number of deformed claws was also shown. Overall, these results suggest that the size of dairy goats' claws influences the prevalence of deformation and lameness severity and that the number of deformed claws affects goats' gait. They also help to build the argument in favor of regular trimming in dairy goat farms.
Claw
Cite
Citations (29)
Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species.
Cite
Citations (0)