Alternative Feeding Strategies and Potential Disease Transmission in Wisconsin White-Tailed Deer

2008 ◽  
Vol 72 (2) ◽  
pp. 416-421 ◽  
Author(s):  
Abbey K. Thompson ◽  
Michael D. Samuel ◽  
Timothy R. Van Deelen
Keyword(s):  
Disease Transmission ◽  
Feeding Strategies ◽  
Alternative Feeding

scholarly journals The effect of alternative feeding strategies for broiler breeder pullets: 1. Welfare and performance during rearing

2019 ◽  
Vol 98 (9) ◽  
pp. 3377-3390 ◽  
Author(s):  
Aitor Arrazola ◽  
Elyse Mosco ◽  
Tina M Widowski ◽  
Michele T Guerin ◽  
Elijah G Kiarie ◽  
...  
Keyword(s):  
Feeding Strategies ◽  
Broiler Breeder ◽  
And Performance ◽  
Alternative Feeding

Application of pig growth models in commercial pork production

2001 ◽  
Vol 81 (1) ◽  
pp. 1-8 ◽  
Author(s):  
C. F. M. de Lange ◽  
B. J. Marty ◽  
S. Birkett ◽  
P. Morel ◽  
B. Szkotnicki
Keyword(s):  
Growth Models ◽  
Management Strategies ◽  
Nutrient Utilization ◽  
Commercial Application ◽  
Feeding Strategies ◽  
Body Protein ◽  
Pork Production ◽  
Key Words Pig ◽  
Finishing Pig ◽  
Alternative Feeding

Pig growth models can be useful tools for identifying optimum management strategies for individual grower-finisher pig units, by integrating knowledge of nutrient utilization for growth and animal-environment interactions into one system. In addition, these models can be used to demonstrate basic principles of nutrient utilization for growth in the pig, to examine “what-if” scenarios, to aid in the development of pig breeding programs and to develop effective research programs. Models used in commercial pork production should represent the biology of growth in the pig and should be flexible, so that they can be focused easily on the needs and special conditions pertaining to particular growing–finishing pig units. For proper application of pig growth models in practice, pig units should be characterized reasonably accurately. This applies in particular to the upper limit to body protein deposition that pigs can achieve under practical conditions, feed intake at various stages of growth and the alternative feeding strategies that can be considered. Some illustrative examples of the commercial application of a pig growth model under Canadian conditions are provided. Key words: Pig, growth, models, application

scholarly journals Sex or cannibalism: Polyphenism and kin recognition control social action strategies in nematodes

2021 ◽  
Vol 7 (35) ◽  
pp. eabg8042
Author(s):  
James W. Lightfoot ◽  
Mohannad Dardiry ◽  
Ata Kalirad ◽  
Stefano Giaimo ◽  
Gabi Eberhardt ◽  
...  
Keyword(s):  
Social Action ◽  
Developmental Plasticity ◽  
Kin Recognition ◽  
Reproductive Mode ◽  
Feeding Strategies ◽  
Action Strategies ◽  
Major Factors ◽  
And Behavior ◽  
Alternative Feeding ◽  
Genomic Relatedness

Resource polyphenisms, where single genotypes produce alternative feeding strategies in response to changing environments, are thought to be facilitators of evolutionary novelty. However, understanding the interplay between environment, morphology, and behavior and its significance is complex. We explore a radiation of Pristionchus nematodes with discrete polyphenic mouth forms and associated microbivorous versus cannibalistic traits. Notably, comparing 29 Pristionchus species reveals that reproductive mode strongly correlates with mouth-form plasticity. Male-female species exhibit the microbivorous morph and avoid parent-offspring conflict as indicated by genetic hybrids. In contrast, hermaphroditic species display cannibalistic morphs encouraging competition. Testing predation between 36 co-occurring strains of the hermaphrodite P. pacificus showed that killing inversely correlates with genomic relatedness. These empirical data together with theory reveal that polyphenism (plasticity), kin recognition, and relatedness are three major factors that shape cannibalistic behaviors. Thus, developmental plasticity influences cooperative versus competitive social action strategies in diverse animals.

scholarly journals The effect of alternative feeding strategies for broiler breeder pullets: 2. Welfare and performance during lay

2019 ◽  
Vol 98 (12) ◽  
pp. 6205-6216 ◽  
Author(s):  
A. Arrazola ◽  
T.M. Widowski ◽  
M.T. Guerin ◽  
E.G. Kiarie ◽  
S. Torrey
Keyword(s):  
Feeding Strategies ◽  
Broiler Breeder ◽  
And Performance ◽  
Alternative Feeding

scholarly journals The effect of alternative feeding strategies on the feeding motivation of broiler breeder pullets

animal ◽  
2020 ◽  
Vol 14 (10) ◽  
pp. 2150-2158
Author(s):  
A. Arrazola ◽  
T.M. Widowski ◽  
M.T. Guerin ◽  
E.G. Kiarie ◽  
S. Torrey
Keyword(s):  
Feeding Strategies ◽  
Broiler Breeder ◽  
Feeding Motivation ◽  
Alternative Feeding

scholarly journals The impact of alternative feeding strategies on total factor productivity growth of pig farming: Empirical evidence from EU countries

2021 ◽  
Vol 19 (2) ◽  
pp. e0106
Author(s):  
Amer Ait-Sidhoum ◽  
Bouali Guesmi ◽  
Juan H. Cabas-Monje ◽  
Jose M. Gil
Keyword(s):  
Total Factor Productivity ◽  
Feeding Strategies ◽  
Productivity Change ◽  
Factor Productivity ◽  
Eu Countries ◽  
Feeding Technique ◽  
Ad Libitum ◽  
Alternative Feeding ◽  
The Impact ◽  
Ad Libitum Feeding

Aim of study: To investigate the impact of adopting new feeding precision technology on pig production.Area of study: Four EU countries (Germany, France, Poland and Spain) during the period 2010–2015.Material and methods: The Färe-Primont index was used to estimate total factor productivity change and its components, technological change and efficiency change.Main results: German, French and Spanish farms experienced total factor productivity (TFP) progress, while Polish farms did not for both feeding strategies. Our empirical findings suggest a high impact on the productivity of ad libitum feeding technique compared to the restricted one for all countries.Research highlights: Precision feeding strategies provide another avenue to more sustainable livestock production and further evidence that implementing individual ad libitum feeding systems for pigs could enhance farm’s productivity.

scholarly journals Reducing the impact of adverse summer-autumn pasture conditions on livestock performance: results from farmer experience

2001 ◽  
pp. 229-233
Author(s):  
R.W. Webby ◽  
L.C.J. Johnstone ◽  
R. Sherlock
Keyword(s):  
Feeding Strategies ◽  
Pasture Management ◽  
Forage Crops ◽  
High Performing ◽  
The North ◽  
Livestock Feeding ◽  
Metabolisable Energy ◽  
The Right ◽  
Alternative Feeding ◽  
The Impact

A group of 12 farmers managing a total of 8845 ha in the West Waikato Region of the North Island, conducted a project to understand and overcome poor livestock performance during the summer- autumn period. Pastures and livestock were monitored to measure the impact of the conditions. Metabolisable energy (ME) of pasture averaged 9.0, 9.8 and 9.3 mega joules per kg of dry matter over the 3 years of study and elevated levels of pasture toxins were consistently found from mid- January to the end of May. To counter these conditions, farmers adopted varying strategies including pasture management and alternative feeding (silage and forage crops). A computerbased tool that enabled the user to make livestock feeding decisions based on the pasture cover, the ME of the pasture, and the quantity and ME of a feed supplement was developed. Farmers were able to reduce the proportion of damaged livers in lambs from 60 to 40% of the flock, which was against the district trend. When the right strategies were implemented, lamb and cattle liveweight gains increased from 52 to 146 g/day and 0.34 to 0.5 kg/day respectively. On average, ewe reproductive performance also improved during the period from 2.4 to 2.8% of lambs scanned/kg ewe body weight. The project emphasised to farmers that their resident pastures did not meet the needs of a high performing livestock production system and that alternative feeding strategies were required if higher performance was to be achieved. Keywords: Androvax, livestock feeding, metabolisable energy, pasture toxins, zinc

scholarly journals Prey utilisation and trophic overlap between the non native mosquitofish and a native fish in two Mediterranean rivers

2014 ◽  
Vol 15 (2) ◽  
pp. 287 ◽  
Author(s):  
E. KALOGIANNI ◽  
S. GIAKOUMI ◽  
A. ANDRIOPOULOU ◽  
Y. CHATZINIKOLAOU
Keyword(s):  
Resource Use ◽  
Disease Transmission ◽  
Native Species ◽  
Feeding Strategy ◽  
Food Resource ◽  
Niche Overlap ◽  
Ecological Impacts ◽  
Feeding Strategies ◽  
Terrestrial Invertebrates ◽  
Trophic Competition

Non native freshwater fish species have been long implicated in the decline of native Mediterranean ichthyofauna, through hybridization, disease transmission, competition for food and habitat, predation and/or ecosystem alteration; our knowledge, however, on the underlying mechanisms of these ecological impacts remains very limited. To explore the potential for trophic competition between the widespread Eastern mosquitofish Gambusia holbrooki and its co-occurring native toothcarp Valencia letourneuxi we compared resource use, feeding strategies, trophic selectivities and diet niche overlap. For this purpose, we studied two populations of the two species from a freshwater and a brackish habitat respectively, characterized by different food resource availabilities. In both habitats, the mosquitofish consumed a greater diversity of invertebrates and preyed on terrestrial invertebrates more frequently than the native toothcarp. Furthermore, in the less diverse and less rich brackish habitat, the non native relied heavily on plant material to balance a decrease in animal prey consumption and modified its individual feeding strategy, whereas these adaptive changes were not apparent in the native species. Their diet overlapped, indicating trophic competition, but this overlap was affected by resource availability variation; in the freshwater habitat, there was limited overlap in their diet, whereas in the brackish habitat, their diets and prey selectivities converged and there was high overlap in resource use, indicative of intense interspecific trophic competition. Overall, it appears that the underlying mechanism of the putative negative impacts of the mosquitofish on the declining Corfu toothcarp is mainly trophic competition, regulated by resource variability, though there is also evidence of larvae predation by the mosquitofish.

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