Results 81 to 90 of about 7,104,740 (296)

The “costly son” hypothesis: Sons exacerbate obstetrical dilemmas in humans and other mammals

The Anatomical Record, EarlyView.
Abstract Human childbirth has often been considered uniquely difficult among mammals, yet recent evidence suggests that obstructed labor and fetopelvic disproportion are widespread across placental mammals. Here, we propose the “costly son” hypothesis: because male offspring are typically larger at birth, they impose greater obstetric risk on mothers ...
Nicole D. S. Grunstra, Jonathan C. K. Wells   +1 more
wiley   +1 more source

Trade-Offs and Driving Factors of Microbial Carbon and Nitrogen Use Efficiency in Typical Forest Ecosystems of Funiu Mountain

Microorganisms
Soil microbial carbon use efficiency (CUE) and nitrogen use efficiency (NUE) are fundamental parameters governing organic matter turnover in terrestrial ecosystems, yet how forest type-driven variation in litter quality propagates through the litter–soil–
Yadong Xu, Yiran Lai, Luotong Zhao, Shujuan Guo, Tianfu Han   +4 more
doaj   +1 more source

Heat Stress and Gut Microbiome Dynamics in Poultry: Interplay, Consequences, and Mitigation Strategies

Animal Research and One Health, EarlyView.
Heat stress disrupts gut microbial balance in poultry, impairing nutrient absorption and immunity. This review outlines the interplay between thermal stress and microbiome dynamics and discusses integrative mitigation strategies, probiotics, phytogenics, cooling systems, and genetic adaptation to enhance poultry resilience.
O. E. Oke, A. I. Oni, O. A. Akosile, K. M. Oliyide, C. A. Ishola, M. O. Logunleko, O. A. Jimoh, C. P. Njoku, L. O. Fasasi, V. A. Uyanga   +9 more
wiley   +1 more source

Effects of Methionine‐Supplemented Low‐Protein Diets on Production Efficiency, Heat Resilience, and Welfare of Broilers in Tropical Climates

Veterinary Medicine and Science
Background The feeding strategy is one of the alternatives for countering the harmful effects of heat stress in broilers. This study was carried out to evaluate the effect of low‐protein diets supplemented with different levels of dietary methionine on ...
Tchabltien Songuine, Lochina Feteke, Cocou Claude Kpomasse, Tchablémane Yarkoa, Tchilabalo Parobali, Simplice D. Karou, Wéré Pitala   +6 more
doaj   +1 more source

IMPLICATIONS OF POLICY REGULATIONS ON LAND APPLICATIONS OF POULTRY LITTER [PDF]

The growth of the poultry industry in Arkansas has exploded in the past decade. As a result, approximately 1.5 million tons of litter are produced every year.
Cochran, Mark J., Govindasamy, Ramu
core  

Genomic Structural Variations Provide Insights Into Litter Size and Teat Number Traits in Hu Sheep

Animal Research and One Health, EarlyView.
Here, we conducted whole genome sequencing on 300 Hu sheep with an average depth of 16.51X. Two candidate genes associated with litter size and teat number traits were identified, namely MAST2 and AFDN. ABSTRACT Litter size and the teat number are important economic indicators in sheep production.
Xin Xiang, Wei Dai, Jiqiang Liu, Zhengguang Wang   +3 more
wiley   +1 more source

Soil legacy effects of long-term nitrogen addition on litter decomposition and soil CO2 efflux in a subtropical grassland: a short-term incubation study

Frontiers in Plant Science
Litter decomposition is a key process in carbon (C) and nutrient cycling, but how nitrogen (N) addition affects decomposition via soil properties versus altered litter quality remains unclear. We conducted a 30-day laboratory incubation using litter from
Chang Liu, Chang Liu, Ruifen Zhu, Ruifen Zhu, Bo Yao, Bo Yao, Jishan Chen, Jishan Chen   +7 more
doaj   +1 more source

Modulation of Animal Gut Health by Milk Oligosaccharide

Animal Research and One Health, EarlyView.
This review summarizes the composition and structural characteristics of MOs across different mammalian species, and elucidates their roles and mechanisms in maintaining intestinal homeostasis by regulating gut microbiome and enhancing intestinal chemical, physical and immune barriers.
Ningtao Chen, Nana Jing, Shiyu Tao, Mingyue Fei, Wentao Lv, Hua Yang, Yingping Xiao, Haiqin Wu   +7 more
wiley   +1 more source

Low-protein diets with balanced amino acids reduce nitrogen excretion and foot pad dermatitis without affecting the growth performance and meat quality of free-range yellow broilers

Italian Journal of Animal Science, 2018
An experiment was conducted to evaluate the effects of crude protein (CP) levels on growth performance, carcase quality, meat quality, immune indices, litter and faeces quality, as well as welfare quality, in free-range yellow broilers using balanced ...
Dan Shao, Yiru Shen, Xu Zhao, Qiang Wang, Yan Hu, Shourong Shi, Haibing Tong   +6 more
doaj   +1 more source

Fecal Virome Transplantation in Human Disease and Livestock Production: Evidence, Mechanisms, and Translational Challenges

Animal Research and One Health, EarlyView.
Fecal virome transplantation may reshape bacterial communities and host responses while reducing viable bacterial transfer. Preclinical evidence suggests biological activity, but human efficacy remains uncertain, and translation requires product standardization, causal validation, donor–recipient matching, and rigorous biosafety assessment.
Luanyang Shi, Yongjuan Guan, Guanxiang Liang   +2 more
wiley   +1 more source