49 Effects of Dietary Supplementation with Lespedeza on the Semen Quality and Fertility of Male Goats (original) (raw)
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Animal Reproduction Science, 2001
Thirty Ethiopian highland rams with an average body weight of 23.7 kg (S.D. = 1.23) and age of 18 months and 25 East African bucks with an average body weight of 18.6 kg (S.D. = 2.06) and age of 14 months were used to study the long term effects of supplementation with the leaves of Leucaena pallida and Sesbania sesban on testicular histology. Within species, animals were blocked based on body weight and scrotal circumference and randomly assigned, within blocks, to five nutritional treatment groups in a complete randomised block design. All animals were provided with unchopped teff (Eragrostis tef) straw ad libitum and were supplemented with either 150 g of wheat bran (control), leucaena (200 or 400 g) or sesbania (200 or 400 g) leaves for a period of 6 months. At the end of the experimental period, all animals were surgically castrated and testicular samples were collected and prepared for histopathological examination. In sheep 200 g S. sesban induced relatively more necrosis of the seminiferous tubules than 200 g L. pallida, but with similar degree of tubular degeneration. However, lesions in testis of goats fed on 200 g S. sesban and 200 g L. pallida did not differ. The effect of 400 g S. sesban and 400 g L. pallida in sheep indicated that the former hardly induced lesions except depressive effect on spermatogenesis. Similar results were observed in goats. About 400 g S. sesban induced milder lesions in sheep and goats than were 200 g S. sesban. The lesions were compared and discussed in relation to the phytochemical composition of the supplementary feeds.
Relation between semen quality and rangeland diets of mixed-breed male goats
Journal of Arid Environments, 2006
The impact of range plant toxins on the reproductive performance of female cattle is economically important to the livestock industry. Nevertheless, there is little information on the significance of toxicosis from range plants on semen quality in domestic ruminants. A total of 18 adult mixed-breed bucks under range conditions were used to evaluate the effect of diet composition (microhistological analysis of fecal samples) on some semen characteristics, and blood and fecal components in April and August. Forages in the buck diets were grouped into 2 classes: low or high levels of each plant in the buck diets. Bucks with higher proportion of Acacia greggii, Flourensia cernua and Lindleya mespiloides in their diets yielded 23-50% less (po0:05) semen than bucks with low proportion of these shrubs in their diet. Sperm motility was reduced by 3-8 percent units (po0:05) by high levels of five rangeland shrubs in the buck diets. Bucks consuming high levels of Acacia greggii showed significantly lower percentages of normal sperm (92710 vs. 9673; po0:05) than bucks with low intake of this forage. High proportions of Rhus virens and Solanum elaeagnifolium in the buck diet increased the percentage of normal sperm (5 units, po0:05) when compared to bucks with low utilization of these forages. Increased intake of Acacia greggii, Dalea bicolor, Opuntia rastrera, Larrea tridentata and Cowania plicata reduced percentage of live sperm by 5 units (po0:05). Blood metabolites analysis showed that increased levels of Acacia greggii and Parthenium incanum were related to better nutritional status of bucks. Zn (À), Cu (À) and glucose (+) were significant predictors of semen volume (r 2 ¼ 0:30). Cu (À) and cholesterol (À) accounted for 37% of the variation in percentage of normal sperms. Forty-four percent of the variation in secondary abnormalities was accounted by Zn (+) and cholesterol (+), whereas fecal N, serum total proteins and creatinine positively affected percentage of live sperms (r 2 ¼ 0:37). These results indicate that ARTICLE IN PRESS www.elsevier.com/locate/jnlabr/yjare 0140-1963/$ -see front matter r (M. Mellado).
Testicular and seminal evaluation of goats fed hay Cenostigma pyramidale
Pesquisa Veterinaria Brasileira, 2020
RESUMO.[Avaliação testicular e seminal de caprinos alimentados com feno de Cenostigma pyramidale.] Para avaliar a possível ocorrência de alterações reprodutivas em caprinos machos associado ao consumo de Cenostigma pyramidale, foram utilizados 16 animais divididos em dois grupos experimentais, G1 e G2 (grupo controle). Animais ABSTRACT.Santos M.V.B., Cavalcante A.K.S., Macêdo J.T.S.A., Santos M.C., Rocha L.F., Machado A.L. & Pedroso P.M.O. 2020. Testicular and seminal evaluation of goats fed hay Cenostigma pyramidale. Pesquisa Veterinária Brasileira 40(12):963-969. Laboratório de Patologia Veterinária, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Via L4, Norte s/n, Brasília, DF 70910-970, Brazil. E-mail: pedrosovet@yahoo.com.br This study aimed to assess the possible occurrence of reproductive changes in male goats associated with ingestion of Cenostigma pyramidale hay. Sixteen animals divided into two experimental groups, G1 and G2 (control group) were used. Animal...
Journal of Agricultural Science and Technology A, 2017
Feeding pelleted sericea lespedeza (SL; Lespedeza cuneata) on pasture can reduce gastrointestinal nematode (GIN) and coccidia (Eimeria spp.) infection in sheep and goats, but effects on nutritional status are unclear. Therefore, a study was completed comparing yearling goats grazing grass pasture supplemented with SL or non-condensed tannins (CT) commercial pellets (control group), respectively, at 1.5% of body weight for 14 weeks, and then after 14 weeks, they were only fed with non-CT pellets at 2.5% of body weight for additional six weeks. Animal body weight was measured at the start of the trial, the 7th week, 14th week and end of the trial. Fecal samples were taken weekly to determine GIN egg output (fecal egg count; FEC) and coccidial oocyst production (fecal oocyst count; FOC). Blood samples (to determine packed cell volume; PCV) were taken weekly to monitor anemia status of the goats, and on days 0, 98 and 137 to determine aspartate aminotransferase (AST), alanine aminotransferase (ALT) and creatine kinase (CK). The study revealed that supplemental SL leaf meal pellets had no effect on FEC, but reduced FOC (P < 0.05) and improved FAMACHA © scores (P < 0.001) in the goats, and the SL supplemented goats tended to gain more weight (P = 0.07) than control animals during the first 49 d, following initiation of pellet feeding. There were no treatment effects on enzymes related to liver function or muscle turnover (AST, ALT and CK), suggesting that there was no muscle damage due to long-term feeding of SL pellets. In conclusion, feeding supplemental SL pellets at 1.5% of body weight on pasture may be a viable strategy for improving health and productivity of yearling goats.
Reproductive toxicology (Elmsford, N.Y.), 2015
The present study was conducted to evaluate the effect of de-oiled castor cake on reproductive traits of crossbreed goats. Fourteen males were grouped into two lots (n=7/group), as described: group without de-oiled castor cake (WCC) and group fed with de-oiled castor cake (CC). Goats received two diets containing a mixture of Bermudagrass hay and concentrates with the same energy (73% total digestive nutrients) and protein content (15% crude protein) during 150 days, corresponding to ages from 40 (puberty) to 60 weeks. Blood plasma concentrations of urea, albumin, lactate dehydrogenase, creatinine, alanine aminotransferase and testosterone were determined. We also evaluated scrotal circumference, sperm parameters, quantitative aspects of spermatogenesis and daily sperm production (DSP), as well as the proteome of seminal plasma and sperm membrane. Seminal fluid and sperm proteins were analyzed by 2-D SDS-PAGE and mass spectrometry. After 150 days of castor cake feeding, animals had ...
Buletin Peternakan
The purpose of this study is to determine the effect of betel nut extract on the macroscopically and microscopically quality of spermatozoa. Materials and methods were used for 16 male Ettawa goats at the age of 2 years. The preparation of betel nut extract and macroscopic observations of spermatozoa via the use of odors, colors, and volumes, as well as microscopic observations of spermatozoa through the use of mass motion, mass motility, and individual motility. The betel nut extract was administered orally for 15 days. The treatments in this study were T0 (without the provision of betel nut extract), T1 (provision of betel nut extract (90 mg/goat/day)), T2 (provision of betel nut extract (180 mg/goat/day)), T3 (provision of betel nut extract (270 mg/goat/day)). The results showed that the addition of betel nut extract was significantly different than without extracts (P<0.05). The goats without betel nut extract had the lowest quality of spermatozoa, whereas the goats treated w...
Effect of toxic levels of Leucaena leucocephala on semen quality of goats in Myanmar
2017
The aim of this study was to investigate the effects of toxic levels of Leucaena leucocephala (L. leucocephala) on semen quality in Myanmar goats. The study was done on nine male goats, and randomly divided into three groups. Group A was kept as control. Group B and C were given 40% and 60% L. leucocephala of total diet respectively for two months. All leucaena treated goats exhibited clinical signs such as alopecia, weight loss, dullness, appetite loss and salivation. There were significant difference on semen volume, live spermatozoa and percentage of motile spermatozoa among three groups. The concentration of spermatozoa was significantly lower in the Group C when compared to Group A (p<0.05).
Animal Feed Science and Technology, 2008
In tropical, semi-arid, and arid areas, animal production is increasingly reliant on supplemental feeding, especially during energetically expensive reproductive seasons. The cost of many traditional feeds restricts their use in many countries, and producers are turning to alternative feed sources. These feed sources may supply the energy and protein requirements for reproduction, but can contain plant secondary compounds that affect various components of the reproductive cycle. In this article, we outline the intake requirements for reproduction in both sexes of sheep and goat, highlighting the importance of timing, as well as quantity, of supplementation on reproductive performance. We investigate examples of various alternative feedstuffs that have been studied throughout Abbreviations: AFR, alternative feed resources; DM, dry matter; FSH, follicle stimulating hormone; g/h/d, gram per head per day; GnRH, gonadotrophin releasing hormone; LH, luteinising hormone. 141 the world, such as willow cuttings, lupin seed, feed blocks, and alternative pasture species. We then review what is known about the effects of these feeds on reproduction in sheep and goats, from the well known estrogenic effects to some positive effects from feeds containing condensed tannins. Crown