Performance of Black Bengal goat: a 50-year review

Hossain, Mohammad Ayaz

doi:10.1007/s11250-020-02477-2

Cited by 16 publications

(16 citation statements)

References 140 publications

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“…The question is, why farmyard manure, despite being similar to Calliandra in terms of C/N ratio and aromatic compounds (Table 2), was better in avoiding SOC losses. It could be that farmyard manure, which constitutes an already decomposed form of biomass (e.g., about 30% of the original biomass intake by animals; Dickhoefer et al, 2021;Hossain, 2021), contains more stabilized forms of C that can, for example, directly attach to soil minerals (Angst et al, 2021). Alternatively, it is possible that the the high amount of lignin in combination with high nutrient concentration (i.e., the regulatory effects of N and aromatic components combined; Kunlanit et al, 2014) or the higher P concentration in farmyard manure (the only treatment with a C/P ratio < 100) made it most effective in terms of SOC formation.…”

Section: Organic Resource Quality Has a Strong Effect On Soc Buildup ...mentioning

confidence: 99%

High quality organic resources are most efficient in stabilizing soil organic carbon: Evidence from four long-term experiments in Kenya

Laub

Corbeels

Couëdel

et al. 2022

Preprint

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Abstract. In sub-Saharan Africa, long-term maize cropping with low external inputs has been associated with the loss of soil fertility. While adding high-quality organic resources combined with mineral fertilizer has been proposed to counteract this fertility loss, the long-term effectiveness and interactions with site properties still require more understanding. This study used repeated measurements over time to assess the effect of different quantities and qualities of organic resource addition combined with mineral N on the change of soil organic carbon concentrations (SOC) over time (and SOC stocks in the year 2021) in four ongoing long-term trials in Kenya. These trials were established with identical treatments in moist to dry climates, on coarse to clayey soil textures, and have been managed for at least 16 years. They received organic resources in quantities equivalent to 1.2 and 4 t C ha−1 per year in the form of Tithonia diversifolia (high quality, fast turnover), Calliandra calothyrsus (high quality, intermediate turnover), Zea mays stover (low quality, fast turnover), sawdust (low quality, slow turnover) and local farmyard manure (variable quality, intermediate turnover). Furthermore, the addition or absence of 240 kg N ha−1 per year as mineral N fertilizer was the split-plot treatment. At all sites, a loss of SOC, rather than gain, was predominantly observed due to a recent conversion from permanent vegetation to agriculture. The average reduction of SOC concentration over 19 years in the 0 to 15 cm depth ranged from 42 % to 13 % of the initial SOC concentration for the control and the farmyard manure treatments at 4 t C ha−1 yr−1, respectively. Adding Calliandra or Tithonia at 4 t C ha−1 yr−1 limited the loss of SOC concentrations to about 24 % of initial SOC, while the addition of saw dust, maize stover (in 3 of 4 sites) and sole mineral N addition, showed no significant reduction in SOC loss over the control. Site specific analyses, however, did show, that at the site with the lowest initial SOC concentration (about 6 g kg−1), the addition of 4 t C ha−1 yr−1 farmyard manure or Calliandra plus mineral N led to a gain in SOC concentrations. All other sites lost SOC in all treatments, albeit at site specific rates. While subsoil SOC stocks in 2021 were little affected by organic resource additions (no difference in 3 of 4 sites), the topsoil SOC stocks corroborated the results for SOC concentrations. The relative annual change of SOC concentrations showed a higher site specificity in high-quality organic resource treatments than in the control, suggesting that the drivers of site specificity in SOC buildup (mineralogy, climate) need to be better understood for effective targeting of organic resources. Even though farmyard manure showed the most potential for reducing SOC loss, our results clearly show that maintaining SOC with external inputs only is not possible at organic resource rates that are realistic for small scale farmers. Thus, additional agronomic interventions such as intercropping, crop rotations or strong rooting crops may be necessary to maintain or increase SOC.

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Section: Organic Resource Quality Has a Strong Effect On Soc Buildup ...mentioning

confidence: 99%

High quality organic resources are most efficient in stabilizing soil organic carbon: Evidence from four long-term experiments in Kenya

Laub

Corbeels

Couëdel

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Thus, on-farm N losses as well as how much feedstock C is needed to produce manure should be considered. For sheep and goats for example, only 25-35% of the C and N they take in is recovered in their excrement ( de Azevedo et al, 2021;Dickhoefer et al, 2021;Hossain, 2021). This means that the biomass needed to produce 1.2 t C of farmyard manure is equivalent to about 4 t C of other organic resources.…”

Section: Differences In the Long-term Suitability Between The Treatmentsmentioning

confidence: 99%

Combining manure with mineral N fertilizer maintains maize yields: Evidence from four long-term experiments in Kenya

Laub

Corbeels

Ndungu

et al. 2023

Field Crops Research

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“…The BBG is the most famous goat breed in Bangladesh as they are easily adaptable, highly prolific, and productive [ 3 , 4 ]. They are capable of resisting tropical diseases and producing quality meat, milk, and skin [ 5 , 6 ]. Faulty rearing strategies are responsible for excess treatment costs and loss of production, ultimately leading to reduced profitability for farmers [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Diversity and prevalence of gastrointestinal parasites of Black Bengal goats in Natore, Bangladesh

Chakrabortty¹,

Shohana²,

Begum³

et al. 2023

J Adv Vet Anim Res

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Objectives: The objective of this work was to estimate the diversity of gastrointestinal (GI) para¬site species, their prevalence, and risk factors in Black Bengal goats (BBGs) of Natore, Bangladesh. Materials and Methods: Fecal samples from randomly selected 260 BBGs were processed through Stoll’s ova counting method, floatation, and simple sedimentation method. Microscopy-based identification of parasitic eggs, cysts, or oocysts was made. A semi-structured question¬naire-based data on host and management practices were collected from the owner. Data analysis was done using Statistical Package for Social Sciences. Results: The overall prevalence of GI parasites in BBGs was 65.4%, with an individual prevalence of 8.5% for Fasciola gigantica, 21.5% for Paramphistomum spp., 20% for Haemonchus spp., 34.2% for Strongyloides spp., 8.5% for Trichuris spp., and 9.2% for Eimeria spp. No significant effect of host age, gender, body condition, animal rearing system, or housing floor type was observed on parasitism. Animals of young age, female, poorly body-conditioned, living in a free-range system, and housed on a muddy floor had a relatively higher susceptibility to infection. Deworming had a significant impact on reducing the frequency of caprine GI parasitism. Conclusions: Despite the significant effect of anthelmintic, the elevated prevalence of GI parasites in BBGs suggests a critical need for developing effective strategies to prevent caprine parasitoses.

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Performance of Black Bengal goat: a 50-year review

Cited by 16 publications

References 140 publications

High quality organic resources are most efficient in stabilizing soil organic carbon: Evidence from four long-term experiments in Kenya

High quality organic resources are most efficient in stabilizing soil organic carbon: Evidence from four long-term experiments in Kenya

Combining manure with mineral N fertilizer maintains maize yields: Evidence from four long-term experiments in Kenya

Diversity and prevalence of gastrointestinal parasites of Black Bengal goats in Natore, Bangladesh

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