Results 51 to 60 of about 337,308 (166)

Analysis of Creep Feed Efficiency by a Linear Model on Grazing Japanese Black Cattle Calves

Nihon Chikusan Gakkaiho, 1992
黒毛和種の親子組を用いて,放牧期における子牛へのクリープ飼料の給与の効果について調べた.合計30組の親子組をI群,II群,そしてIII群の3つの区に分割配置し,1990年の4月17日から同年10月24日まで放牧した.I群は開牧前に子牛にクリープ飼料への馴致を行ない,放牧期も引続きクリープ飼料を給与した.II群は馴致は行なわず,放牧期のみクリープ飼料を給与した.III群はクリープ飼料無給与である.クリープ飼料は子牛の採食に合せて追加給与し,体重測定は毎週行なった.解析には,Brodyの成長モデルの誘導関数を含む線形モデルを利用した.子牛の日増体重を目的変数(Y)とし,成長モデルからの誘導関数,飼料摂取量(Cp),馴致の有無(Tr),子牛の性(Sx1,Sx2),母乳の産次(Pt1,Pt2),放牧の歴月 ...
KUSHIBIKI, Shiro, UMEMURA, Kazuhiro, HAYASHI, Takashi   +2 more
openaire   +2 more sources

Amidst (waste) abundance: world‐making and struggles in hosting a municipal landfill in the Bolivian lowlands Au milieu de l'abondance (de déchets) : fabrication du monde et luttes liées à la gestion d'une décharge municipale dans les basses terres de Bolivie

Journal of the Royal Anthropological Institute, EarlyView.
In recent decades, solid waste has proliferated worldwide, becoming a pressing global issue. This article explores the role of Indigenous people dwelling within and upon emerging waste scenarios, with a specific focus on involved forms of sociality and ontological contestation. Drawing on the case of a municipal landfill sited on a Guarani community in
Vanesa Martín Galán
wiley   +1 more source

Climatic–Anthropogenic Synergy Drives Escalating Minimum Area Requirements and Connectivity‐Protection Mismatch in a Karst‐Endemic Primate

Integrative Zoology, EarlyView.
Climate change and anthropogenic activities drive antagonistic degradation of landscape connectivity for endangered François’ langur (1987–2024), causing 48.8% habitat loss, north‐south fragmentation, and centroid migration (1.2 km/yr). Despite protected areas buffering connectivity, static management fails dynamic priority habitats; we propose ...
Guangmei Yang, Heqin Cao, Tuo Shen, Jipeng Tian, Yixin Diao, Haijun Su   +5 more
wiley   +1 more source

Comportamento ingestivo de cordeiros em três sistemas de produção em pastagem de Tifton 85 = Intake behavior of lambs in three production systems on Tifton 85 pasture

Acta Scientiarum: Animal Sciences, 2009
O objetivo deste estudo foi avaliar o comportamento ingestivo de cordeiros em pastagem de Tifton-85 (Cynodon spp.) em três sistemas de produção: cordeiros desmamados aos 60 dias de idade e mantidos em pastagem; cordeiros mantidos com suas mães em ...
César Henrique Espírito Candal Poli, Alda Lúcia Gomes Monteiro, Carina Simionato de Barros, João Ricardo Dittrich, Sergio Rodrigo Fernandes, Paulo César de Faccio Carvalho   +5 more
doaj  

Drivers of Mouse Plagues: Exceptional Rainfall Following Prolonged Drought Triggers Mouse Plagues in Southeastern Australia

Integrative Zoology, EarlyView.
This study identified a specific sequence of an extended drought followed by exceptional rainfall as a necessary precursor for mouse plagues in southeastern Australia. Long‐term rainfall anomalies interact with ecological processes to reset population dynamics, creating conditions that support rapid mouse population growth following periods of ...
Peter R. Brown
wiley   +1 more source

Divergence Linked to Possible Ecological Speciation in Blind Mole Rats: Integration of Thermal Biology and Bite Force in the Upper Galilee Blind Mole Rat (Nannospalax galili)

Integrative Zoology, EarlyView.
Basalt‐dwelling blind mole rats maintain lower body temperatures, show greater post‐digging thermal increases, and dig more efficiently than those from rendzina soils. Although metabolic rates and bite force did not differ between populations, these thermal and physiological shifts align with the greater mechanical resistance and seasonal hypoxia of ...
Matěj Lövy, Jan Okrouhlík, František Vejmělka, Pavlína Schwarzová, Maja Rendulić, Eviatar Nevo, Radim Šumbera   +6 more
wiley   +1 more source

Supplementing beef cattle diets with brown seaweed affects coprophagous beetles' dung use

Agricultural and Forest Entomology, EarlyView.
Supplementing beef cattle diets with brown seaweed reduced the attractiveness of dung for a common dung beetle (Onthophagus nuchicornis). Dietary supplementation with brown seaweed appeared to reduce the proportion of major males in the F1 generation.
Samantha Bennett, Rhea Lumactud, Ghader Manafiazar, Paul Manning   +3 more
wiley   +1 more source

Genetic Control of Canalization for Twinning Rates in Polypay and Rambouillet Sheep Using Threshold or Double Hierarchical Generalized Linear Models

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT In most sheep production systems, the ideal scenario is for every ewe to lamb and successfully raise twins. However, selection for increased number of lambs born (NLB) is often accompanied by a higher incidence of triplet and higher‐order births, which increases management challenges and producer reluctance to intensify selection for this ...
Carrie S. Wilson, J. Bret Taylor, Luiz F. Brito   +2 more
wiley   +1 more source

DETERMINAÇÃO DA FASE LACTENTE-RUMINANTE DE CORDEIROS PELA TÉCNICA DO δ13C

Ciência Animal Brasileira, 2010
This study was conducted at University of Marília, SãoPaulo State, Brazil, aiming to determine the phase of intake transitionbetween exclusively liquid diet (milk) and diet based onmilk, grass and/or ration by lambs by δ13C technique.
Janaina Januário da Silva, Ciniro Costa, Carlos Ducatti, Alda Lúcia Gomes Monteiro, Clédson Augusto Garcia   +4 more
doaj  

Stressors Inherent to Beef Cattle Management in the United States of America and the Resulting Impacts on Production Sustainability: A Review

Ruminants
Stressors are directly related to major events throughout the beef cattle production cycle. Understanding the impact stressors have on productive outcomes is critical for the efficient implementation of management strategies.
Toriann Summer Winton, Molly Christine Nicodemus, Kelsey Margaret Harvey   +2 more
doaj   +1 more source