Academic Journal
Effect of artificial shading on performance and reproductive parameters of semi-confined young Brangus bulls
| Title: | Effect of artificial shading on performance and reproductive parameters of semi-confined young Brangus bulls |
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| Authors: | Marcos Chiquitelli Neto, Cristiane Gonçalves Titto, Evaldo Antonio Lencioni Titto, Eliane Vianna da Costa e Silva, José Nicolau Prospero Puoli Filho, Thays Mayra da Cunha Leme, Fábio Luís Henrique, Alfredo Manuel Fraco Pereira |
| Source: | Brazilian Journal of Veterinary Research and Animal Science, Vol 52, Iss 1 (2015) |
| Publisher Information: | Universidade de São Paulo, 2015. |
| Publication Year: | 2015 |
| Collection: | LCC:Animal culture |
| Subject Terms: | Behavior, Heat Stress, Performance, Reproduction, Shade, Animal culture, SF1-1100 |
| More Details: | Thirty Brangus bulls were used in a 90-d study to assess the effect of artificial shading on the performance and reproductive characteristics of semi-confined cattle. Animals were kept in four one-ha paddocks in two groups of eight for shade treatment (5 m2/animal of 80% solar block shade cloth) and two groups of seven animals in no-shade treatment. Each treatment had two homogeneous groups, each divided into heavy-bulls (351-450 kg) and light-bulls (300-350 kg). Time spent under shade, time standing, average daily gain, testicular development and sperm quality were investigated. Animals spent 24% of the daylight under the shade and no-shaded bulls spent more time standing (P < 0.05). No difference was found in average daily gain (P > 0.05) and testicular development between shaded and no-shaded animals. However, scrotal perimeter was higher for shaded light animals compared to no-shaded light bulls (P < 0.10). Sperm motility increase during the experimental period for shaded animals (P < 0.05) and sperm abnormalities were higher for the shaded ones (P < 0.05). Although the results did not indicate pronounced benefits on cattle performance, this resource was an important alternative because it appears to provide an improvement in some reproductive parameters and ensure a better thermal comfort to the animals. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English Portuguese |
| ISSN: | 1678-4456 1413-9596 |
| Relation: | http://www.revistas.usp.br/bjvras/article/view/79819; https://doaj.org/toc/1413-9596; https://doaj.org/toc/1678-4456 |
| DOI: | 10.11606/issn.1678-4456.v52i1p68-77 |
| Access URL: | https://doaj.org/article/ac0f3e152f2049c9b413d9fb4f5111cb |
| Accession Number: | edsdoj.0f3e152f2049c9b413d9fb4f5111cb |
| Database: | Directory of Open Access Journals |
| ISSN: | 16784456 14139596 |
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| DOI: | 10.11606/issn.1678-4456.v52i1p68-77 |
| Published in: | Brazilian Journal of Veterinary Research and Animal Science |
| Language: | English Portuguese |