South African Journal of Animal Science最新文献

Slaughter and carcass characteristics of cross- and purebred lambs finished in a pasture-based system 以牧草为基础的饲养系统中杂交羔羊和纯种羔羊的屠宰和胴体特征

IF 0.8 4区农林科学

South African Journal of Animal Science Pub Date : 2024-02-15 DOI: 10.4314/sajas.v53i3.07

P. G. Theron, T.S. Brand, Schalk W P Cloete, J.H.C van Zyl, P.E. Strydom

引用次数: 0

Effects of diet on ruminal methanogenic archaea composition and diversity in cashmere goats 日粮对羊绒山羊瘤胃产甲烷古细菌组成和多样性的影响

IF 0.8 4区农林科学

South African Journal of Animal Science Pub Date : 2024-02-15 DOI: 10.4314/sajas.v53i3.08

K. N. Li, Y. R. Wei, R. H. Na

{"title":"Effects of diet on ruminal methanogenic archaea composition and diversity in cashmere goats","authors":"K. N. Li, Y. R. Wei, R. H. Na","doi":"10.4314/sajas.v53i3.08","DOIUrl":"https://doi.org/10.4314/sajas.v53i3.08","url":null,"abstract":"Diet is the most direct way to affect the rumen microbial community. The objective of this study was to examine the effects of different diets on ruminal methanogen composition in cashmere goats. Twenty four cashmere goats were randomly divided into four groups that were fed alfalfa hay (AH), alfalfa hay plus concentrate (AHC), corn stalks (CS), and corn stalks plus concentrate (CSC). The concentration of ammonia N for the group fed AHC was substantially higher than in the other groups. The concentrations of total VFAs, acetate, and propionate in AH and AHC groups were higher than in the CS and CSC groups. The abundance of archaea was markedly different among different groups based on a high throughput sequencing method. The abundance of Candidatus_Methanomethylophilus was 21.28% in the AH group, which was higher than the other groups. Unclassified_c_Thermoplasmata was the dominant methanogen in the AH and AHC groups, with abundances of 48.09% and 44.97%, respectively; Methanobrevibacter was the dominant methanogen in the CS and CSC groups, with abundances of 41.22% and 20.73%, respectively. A positive correlation was identified between pH and Methanosphaera; a negative relationship was observed between acetate and Unclassified_o_Thermoplasmatales. In conclusion, the methanogen communities in cashmere goats varied on different diets. In the alfalfa hay based diets, the Methanomassiliicoccales affiliated groups were the dominant methanogens in the rumen of the goats. However, when fed the corn stalk based diets, Methanobrevibacter was the dominant methanogen in the rumen fluid. The results were related to dietary composition, especially crude protein content.","PeriodicalId":21869,"journal":{"name":"South African Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139776653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Association study of polymorphisms in miRNA-1687 with growth traits of chickens miRNA-1687 多态性与鸡生长特征的关联研究

IF 0.8 4区农林科学

South African Journal of Animal Science Pub Date : 2024-02-15 DOI: 10.4314/sajas.v53i3.09

J. Z. Shi, Y. W. Wang, T. J. Wang, J. Ji, G. R. Sun, L. G. Yao

{"title":"Association study of polymorphisms in miRNA-1687 with growth traits of chickens","authors":"J. Z. Shi, Y. W. Wang, T. J. Wang, J. Ji, G. R. Sun, L. G. Yao","doi":"10.4314/sajas.v53i3.09","DOIUrl":"https://doi.org/10.4314/sajas.v53i3.09","url":null,"abstract":"Polymorphisms within microRNAs can lead to phenotypic variations in organisms. The purpose of this research was to investigate the potential impact of the pre-miR-1687 single nucleotide polymorphism (SNP) on the economic characteristics of weight and body size in chickens. The SNP was genotyped using matrix-assisted laser desorption/ionization-time of flight mass spectrometry. A linear mixed model was utilized to analyse the associations between the SNP and chicken body size and growth traits. The SNP in the pre-miR-1687 gene was correlated with F2 chicken body weight (BW) at birth and at 4, 6, 8, and 10 weeks of age. The SNP in the gga-miR-1687 gene was correlated with shank length, shank girth, pectoral angle (at 4 weeks), and pelvic breadth (at 8 weeks). Different BW genotypes were observed in the studied flocks. The changes in the secondary structure of pre-miR-1687 and in the free energy values were estimated using online M-fold software. The results serve as a helpful resource for subsequent research on the mechanisms and functions of miRNAs. In addition, the study provides a credible basis for the application of biomolecular technology in poultry breeding.","PeriodicalId":21869,"journal":{"name":"South African Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139776365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pre-treatments of Mirasolia diversifolia using Lactobacillus bulgaricus at different dosages and fermentation times: Phytic acid concentration, enzyme activity, and fermentation characteristics 使用保加利亚乳杆菌以不同剂量和发酵时间预处理 Mirasifolia diversifolia：植酸浓度、酶活性和发酵特性

IF 0.8 4区农林科学

South African Journal of Animal Science Pub Date : 2024-02-15 DOI: 10.4314/sajas.v53i3.11

R. Pazla, E.M. Putri, N. Jamarun, W. Negara, F. A. Khan, M. Zain, A. Arief, G. Yanti, A. Antonius, T. P. Priyatno, M. Surachman, I. W. A. Darmawan, H. Herdis, L. Marlina, S. Asmairicen, Y. Marta

{"title":"Pre-treatments of Mirasolia diversifolia using Lactobacillus bulgaricus at different dosages and fermentation times: Phytic acid concentration, enzyme activity, and fermentation characteristics","authors":"R. Pazla, E.M. Putri, N. Jamarun, W. Negara, F. A. Khan, M. Zain, A. Arief, G. Yanti, A. Antonius, T. P. Priyatno, M. Surachman, I. W. A. Darmawan, H. Herdis, L. Marlina, S. Asmairicen, Y. Marta","doi":"10.4314/sajas.v53i3.11","DOIUrl":"https://doi.org/10.4314/sajas.v53i3.11","url":null,"abstract":"The present study aimed to determine the optimal dosage and fermentation time of Mirasolia diversifolia (leaves and stems) using Lactobacillus bulgaricus bacteria by observing the reduction in phytic acid, the activity of enzymes, pH of fermentation, number of bacterial colonies, and tannin concentration. An experiment was conducted using a completely randomized design (CRD) and 2×3 factorial design with three replications. The treatment factors were Factor A (L. bulgaricus dosages): A1 = 2% (g/v), A2 = 3% (g/v); and Factor B (fermentation times): B1 = 1 d, B2 = 3 d, B3 = 5 d. The dosage of L. bulgaricus and fermentation time had an interaction on phytic acid and its degradation, enzyme activities, pH fermentation, and the number of bacterial colonies. Tannin concentration was not affected. Mirasolia diversifolia fermented with 3% of L. bulgaricus for 5 d resulted in the lowest phytic acid content. Future research requires evaluating in vitro and in vivo dietary formulations for cattle using M. diversifolia fermented with L. bulgaricus.","PeriodicalId":21869,"journal":{"name":"South African Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139776630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pre-treatments of Mirasolia diversifolia using Lactobacillus bulgaricus at different dosages and fermentation times: Phytic acid concentration, enzyme activity, and fermentation characteristics 使用保加利亚乳杆菌以不同剂量和发酵时间预处理 Mirasifolia diversifolia：植酸浓度、酶活性和发酵特性

IF 0.8 4区农林科学

South African Journal of Animal Science Pub Date : 2024-02-15 DOI: 10.4314/sajas.v53i3.11

R. Pazla, E.M. Putri, N. Jamarun, W. Negara, F. A. Khan, M. Zain, A. Arief, G. Yanti, A. Antonius, T. P. Priyatno, M. Surachman, I. W. A. Darmawan, H. Herdis, L. Marlina, S. Asmairicen, Y. Marta

{"title":"Pre-treatments of Mirasolia diversifolia using Lactobacillus bulgaricus at different dosages and fermentation times: Phytic acid concentration, enzyme activity, and fermentation characteristics","authors":"R. Pazla, E.M. Putri, N. Jamarun, W. Negara, F. A. Khan, M. Zain, A. Arief, G. Yanti, A. Antonius, T. P. Priyatno, M. Surachman, I. W. A. Darmawan, H. Herdis, L. Marlina, S. Asmairicen, Y. Marta","doi":"10.4314/sajas.v53i3.11","DOIUrl":"https://doi.org/10.4314/sajas.v53i3.11","url":null,"abstract":"The present study aimed to determine the optimal dosage and fermentation time of Mirasolia diversifolia (leaves and stems) using Lactobacillus bulgaricus bacteria by observing the reduction in phytic acid, the activity of enzymes, pH of fermentation, number of bacterial colonies, and tannin concentration. An experiment was conducted using a completely randomized design (CRD) and 2×3 factorial design with three replications. The treatment factors were Factor A (L. bulgaricus dosages): A1 = 2% (g/v), A2 = 3% (g/v); and Factor B (fermentation times): B1 = 1 d, B2 = 3 d, B3 = 5 d. The dosage of L. bulgaricus and fermentation time had an interaction on phytic acid and its degradation, enzyme activities, pH fermentation, and the number of bacterial colonies. Tannin concentration was not affected. Mirasolia diversifolia fermented with 3% of L. bulgaricus for 5 d resulted in the lowest phytic acid content. Future research requires evaluating in vitro and in vivo dietary formulations for cattle using M. diversifolia fermented with L. bulgaricus.","PeriodicalId":21869,"journal":{"name":"South African Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139836423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Suckling piglets submitted to creep feeding management from 5 days-old showed optimal performance and exploratory behaviour 从 5 日龄开始接受爬行饲养管理的哺乳仔猪表现出最佳的生产性能和探索行为

IF 0.8 4区农林科学

South African Journal of Animal Science Pub Date : 2024-02-15 DOI: 10.4314/sajas.v53i3.10

J. D. Agnol, F. Meneghetti, T. S. Gaggini, G. A. Rodrigues, J. Genova, P. Carvalho, S. T. Carvalho, L. B. Costa, D. Paiano, A. Saraiva, C. Eyng, N. T. E. Oliveira

{"title":"Suckling piglets submitted to creep feeding management from 5 days-old showed optimal performance and exploratory behaviour","authors":"J. D. Agnol, F. Meneghetti, T. S. Gaggini, G. A. Rodrigues, J. Genova, P. Carvalho, S. T. Carvalho, L. B. Costa, D. Paiano, A. Saraiva, C. Eyng, N. T. E. Oliveira","doi":"10.4314/sajas.v53i3.10","DOIUrl":"https://doi.org/10.4314/sajas.v53i3.10","url":null,"abstract":"This study aimed to assess the effects of starting creep feeding at different ages on performance, behaviour, haematological, and biochemical parameters in piglets. A total of 138 piglets (1.34 ± 0.25 kg, n = 13 sows), weaned at 21 d-old, were assigned to treatments using a completely randomized design. The litter was divided into two groups: seven litters (n = 80 piglets) were subjected to creep feeding on the fifth day of age (creep 5) and five litters (n = 58 piglets), on the tenth day of age (creep 10). Piglets were weighed at birth, weaning, and after the first week in the nursery. Piglet behaviour was evaluated daily for 15 min until day 20. Blood was collected on day 13, at weaning, and at the end of the first week in the nursery. There was no difference in body weight in the suckling phase, but piglets fed Creep 5 showed greater body weight gain in the first nursery week. The Creep 5 group had lower feed leftovers during the five days of evaluation of feed intake. There were no differences in haematological parameters and amylase concentration; however, the piglets spent more time lying down, sucking, and massaging the udder. On day 8, the piglets in the Creep 5 group showed a higher frequency of exploratory behaviour. In conclusion, piglets fed Creep 5 had optimal performance after weaning and improved feed intake capacity by displaying more exploratory behaviour than Creep 10. Creep management did not alter haematological and biochemical parameters.","PeriodicalId":21869,"journal":{"name":"South African Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139776557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Golden mussel shell (Limnoperna fortunei) flour contaminated with cadmium as a calcium source for broiler chickens 受镉污染的金贻贝壳（Limnoperna fortunei）面粉作为肉鸡的钙源

IF 0.8 4区农林科学

South African Journal of Animal Science Pub Date : 2024-02-15 DOI: 10.4314/sajas.v53i3.13

L. Wachholz, T.S. Andrade, C. Souza, J. Broch, E. H. Cirilo, A.S. Avila, G. Toniazzo, C. Kaufmann, P. Carvalho, C. Eyng, R.V. Nunes

{"title":"Golden mussel shell (Limnoperna fortunei) flour contaminated with cadmium as a calcium source for broiler chickens","authors":"L. Wachholz, T.S. Andrade, C. Souza, J. Broch, E. H. Cirilo, A.S. Avila, G. Toniazzo, C. Kaufmann, P. Carvalho, C. Eyng, R.V. Nunes","doi":"10.4314/sajas.v53i3.13","DOIUrl":"https://doi.org/10.4314/sajas.v53i3.13","url":null,"abstract":"The objective of this study was to evaluate the effects of golden mussel flour (GMSF) contaminated with increasing rates of cadmium (Cd) as a replacement for limestone as a Ca source, in broiler chicken feed from 14 to 42 days of age. A total of 60 animals were assigned to four treatments (inclusion rates of Cd: 6.94, 14.55, 22.40, and 30.00 mg Cd kg-¹) with five replications in a completely randomized design. At 42 d, blood samples were collected to evaluate serum concentrations of aspartate amino transferase (AST), alanine amino transferase (ALT), gamma glutamyl transferase (GGT), total bilirubin, Ca, P, and Cd. After slaughter, tissues were collected to evaluate Cd concentration in bone parameters. Growth performance of broiler chickens and Cd content in the breast meat were not affected by the inclusion rates of Cd in the GMSF. However, there was an effect of Cd in GMSF on the concentration of Cd in the skin, liver, bones, feathers, and serum; ALT; and total bilirubin. Bone flexibility had a quadratic response to increasing inclusion rates of GMSF; serum Ca concentration increased linearly and there was no effect on serum P concentration. Concentrations of Cd in GMSF above 20 mg kg-¹ caused high Cd contamination in broiler tissues. Therefore, it was concluded that Cd concentrations above 6.94 mg kg-¹ in broiler diets caused high Cd concentrations in meat and organs that are above those permitted for human consumption","PeriodicalId":21869,"journal":{"name":"South African Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139776333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Trace mineral concentration of forages in connection with sheep dietary requirements 与绵羊日粮需求有关的牧草微量矿物质浓度

IF 0.8 4区农林科学

South African Journal of Animal Science Pub Date : 2024-02-15 DOI: 10.4314/sajas.v53i3.04

A. Qudoos, U.B. Tahir, S. Ahmad, M. Tariq, M. Imran, R. Nadeem, S. Noreen, N. Luqman, M. Maqbool, I. Jan, Z. Iqbal, M. Raza, M. S. Sajid, H. Rizwan

{"title":"Trace mineral concentration of forages in connection with sheep dietary requirements","authors":"A. Qudoos, U.B. Tahir, S. Ahmad, M. Tariq, M. Imran, R. Nadeem, S. Noreen, N. Luqman, M. Maqbool, I. Jan, Z. Iqbal, M. Raza, M. S. Sajid, H. Rizwan","doi":"10.4314/sajas.v53i3.04","DOIUrl":"https://doi.org/10.4314/sajas.v53i3.04","url":null,"abstract":"This paper describes the trace and ultra-trace mineral concentration in different forages utilized by sheep (Kajli and Fat tail) in the rangelands of Chakwal district, Punjab, Pakistan. The concentrations of Se, Mo, Zn, Mn, Cu, and Co were assessed using spectrophotometric methods after the digestion of forage samples. The dominant forage species consumed by sheep were Buxus pappillosa, Prosopis juliflora, Ficus palmata, Acacia modesta, Trichodesma indica, Olea permiginea, Lantana camara, Justicia adhatoda, Morus nigra, and Ipomoea carnea. The overall mean concentration of Co (1.27±0.24 mg/Kg of DM), Zn (35.14±1.28 mg/Kg of DM), and Cu (28.06±1.29 mg/Kg of DM) in forages were higher than the requirements for lactating ewes, while the concentration of Se was within the normal range. Molybdenum (0.030±0.004 mg/Kg of DM) and Mn (29.69±1.61 mg/Kg of DM) concentrations were lower than dietary requirements for sheep. In different administrative divisions (tehsils) like Chakwal, Talagang, Choa Saidan Shah, and Kalar Kahar of Chakwal district, the trace minerals Zn, Mn, and Co, showed non-significant variation, whereas Se, Mo, and Cu showed substantial variation. In conclusion, rangeland forages contained a sufficient concentration of most trace minerals (Co, Cu, Se, Zn) to meet the requirements of grazing sheep in the study district. However, Mn and Mo supplementation seems to be essential to maintain the optimal production capabilities of sheep in this area.","PeriodicalId":21869,"journal":{"name":"South African Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139834520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Association study of polymorphisms in miRNA-1687 with growth traits of chickens miRNA-1687 多态性与鸡生长特征的关联研究

IF 0.8 4区农林科学

South African Journal of Animal Science Pub Date : 2024-02-15 DOI: 10.4314/sajas.v53i3.09

J. Z. Shi, Y. W. Wang, T. J. Wang, J. Ji, G. R. Sun, L. G. Yao

{"title":"Association study of polymorphisms in miRNA-1687 with growth traits of chickens","authors":"J. Z. Shi, Y. W. Wang, T. J. Wang, J. Ji, G. R. Sun, L. G. Yao","doi":"10.4314/sajas.v53i3.09","DOIUrl":"https://doi.org/10.4314/sajas.v53i3.09","url":null,"abstract":"Polymorphisms within microRNAs can lead to phenotypic variations in organisms. The purpose of this research was to investigate the potential impact of the pre-miR-1687 single nucleotide polymorphism (SNP) on the economic characteristics of weight and body size in chickens. The SNP was genotyped using matrix-assisted laser desorption/ionization-time of flight mass spectrometry. A linear mixed model was utilized to analyse the associations between the SNP and chicken body size and growth traits. The SNP in the pre-miR-1687 gene was correlated with F2 chicken body weight (BW) at birth and at 4, 6, 8, and 10 weeks of age. The SNP in the gga-miR-1687 gene was correlated with shank length, shank girth, pectoral angle (at 4 weeks), and pelvic breadth (at 8 weeks). Different BW genotypes were observed in the studied flocks. The changes in the secondary structure of pre-miR-1687 and in the free energy values were estimated using online M-fold software. The results serve as a helpful resource for subsequent research on the mechanisms and functions of miRNAs. In addition, the study provides a credible basis for the application of biomolecular technology in poultry breeding.","PeriodicalId":21869,"journal":{"name":"South African Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139835930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Trace mineral concentration of forages in connection with sheep dietary requirements 与绵羊日粮需求有关的牧草微量矿物质浓度

IF 0.8 4区农林科学

South African Journal of Animal Science Pub Date : 2024-02-15 DOI: 10.4314/sajas.v53i3.04

A. Qudoos, U.B. Tahir, S. Ahmad, M. Tariq, M. Imran, R. Nadeem, S. Noreen, N. Luqman, M. Maqbool, I. Jan, Z. Iqbal, M. Raza, M. S. Sajid, H. Rizwan

{"title":"Trace mineral concentration of forages in connection with sheep dietary requirements","authors":"A. Qudoos, U.B. Tahir, S. Ahmad, M. Tariq, M. Imran, R. Nadeem, S. Noreen, N. Luqman, M. Maqbool, I. Jan, Z. Iqbal, M. Raza, M. S. Sajid, H. Rizwan","doi":"10.4314/sajas.v53i3.04","DOIUrl":"https://doi.org/10.4314/sajas.v53i3.04","url":null,"abstract":"This paper describes the trace and ultra-trace mineral concentration in different forages utilized by sheep (Kajli and Fat tail) in the rangelands of Chakwal district, Punjab, Pakistan. The concentrations of Se, Mo, Zn, Mn, Cu, and Co were assessed using spectrophotometric methods after the digestion of forage samples. The dominant forage species consumed by sheep were Buxus pappillosa, Prosopis juliflora, Ficus palmata, Acacia modesta, Trichodesma indica, Olea permiginea, Lantana camara, Justicia adhatoda, Morus nigra, and Ipomoea carnea. The overall mean concentration of Co (1.27±0.24 mg/Kg of DM), Zn (35.14±1.28 mg/Kg of DM), and Cu (28.06±1.29 mg/Kg of DM) in forages were higher than the requirements for lactating ewes, while the concentration of Se was within the normal range. Molybdenum (0.030±0.004 mg/Kg of DM) and Mn (29.69±1.61 mg/Kg of DM) concentrations were lower than dietary requirements for sheep. In different administrative divisions (tehsils) like Chakwal, Talagang, Choa Saidan Shah, and Kalar Kahar of Chakwal district, the trace minerals Zn, Mn, and Co, showed non-significant variation, whereas Se, Mo, and Cu showed substantial variation. In conclusion, rangeland forages contained a sufficient concentration of most trace minerals (Co, Cu, Se, Zn) to meet the requirements of grazing sheep in the study district. However, Mn and Mo supplementation seems to be essential to maintain the optimal production capabilities of sheep in this area.","PeriodicalId":21869,"journal":{"name":"South African Journal of Animal Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139775087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1