Short-Term Effects of Heat Stress on Cow Behavior, Registered by Innovative Technologies and Blood Gas Parameters DOI Creative Commons
Ramūnas Antanaitis, Karina Džermeikaitė, Justina Krištolaitytė

и другие.

Animals, Год журнала: 2024, Номер 14(16), С. 2390 - 2390

Опубликована: Авг. 18, 2024

Heat stress (HS) is one of the key factors affecting an animal's immune system and productivity, as a result physiological reaction combined with environmental factors. This study examined short-term effects heat on cow behavior, recorded by innovative technologies, its impact blood gas parameters, using 56 1070 cows clinically evaluated during second subsequent lactations within first 30 days postpartum. Throughout experiment (from 4 June 2024 until 1 July 2024), behavior parameters (rumination time min/d. (RT), body temperature (°C), reticulorumen pH, water consumption (L/day), activity (h/day)) were monitored specialized SmaXtec boluses employing analyzer (Siemens Healthineers, 1200 Courtneypark Dr E Mississauga, L5T 1P2, Canada). During period, temperature-humidity index (THI), based ambient humidity, was used to calculate THI categorize data into four classes follows: 1-THI 60-63 (4 2024-12 2024); 2-THI 65-69 (13 2024-18 3-THI 73-75 (19 2024-25 4-THI 73-78 (26 2024-1 2024). The results showed that significantly reduced rumination up 70% in highest class (73 78) increased 2%. It also caused 12.6% decrease partial carbon dioxide pressure (pCO2) 32% increase oxygen (pO2), decreasing plasma sodium 1.36% potassium 6%, while increasing chloride 3%. findings underscore critical need for continuous monitoring, early detection, proactive management mitigate adverse impacts dairy health productivity. Recommendations include use advanced monitoring technologies specific parameter tracking detect signs implement more timely interventions.

Язык: Английский

Fish Hydrolysates as Potential Biostimulants for Growing Legumes and Cereals to Reduce Temperature Stress DOI Open Access
N. V. Nuzhyna, Nataliia Raksha, Tetiana Halenova

и другие.

The Open Agriculture Journal, Год журнала: 2024, Номер 18(1)

Опубликована: Сен. 11, 2024

Introduction This study aimed to develop an optimal method for the production of fish hydrolysates and test their effectiveness as plant biostimulants under low-temperature growing conditions. Methods To obtain hydrolysates, waste a rainbow trout was used. Hydrolysates were prepared by enzymatic hydrolysis using entrails source enzymes. Differences in methods obtaining hydrolysates: samples І, ІІ, ІІІ, IV placed into water bath at +37°C, sample V left room temperature. Further nitric, phosphoric, acetic acids added I, II, III, respectively, while distilled V. The on germination growth corn beans conditions (+15/8°C) determined. Results Hydrolysate I showed positive effect corn. stimulated growth; however, it caused abnormal development some seedlings. same deformations observed with hydrolysate II. III inhibited mold but also crops. greatest both crops found use IV. concentration 1% - 10%. Conclusion A result obtained from stimulate low temperatures. Therefore, will allow less yield loss case unforeseeable temperature drops after seed sowing.

Язык: Английский

Процитировано

2

Dynamics of the Thermal Environment in Climate-Controlled Poultry Houses for Broiler Chickens DOI Creative Commons

Jacqueline Cardoso Ferreira,

Alessandro Torres Campos, Patrícia Ferreira Ponciano Ferraz

и другие.

AgriEngineering, Год журнала: 2024, Номер 6(4), С. 3891 - 3911

Опубликована: Окт. 24, 2024

The implementation of poultry houses with enhanced control over environmental variables represents a solution to the growing demands for production and animal welfare. This study assessed internal environment dark-house broilers on weekly basis throughout cycle. Data were collected six weeks, from March April 2016 involving 40,000 Cobb500TM broilers. A Hobo® datalogger continuously monitored temperature (°C), relative humidity (%), dew point black globe (°C) at 15 min intervals. indices analyzed included index (THI), (BGHI), enthalpy (H). In first week, both THI BGHI indicated favorable conditions birds, ranging 72.4 80 77 81.6. Between second fifth varied between thermal comfort discomfort, 56.6 72. sixth all reflecting increased metabolism population density. system demonstrated feed efficiency 51%, an accumulated mortality rate 1.97%, total 99,873 kg meat. highlights importance monitoring adjusting optimize enhance bird

Язык: Английский

Процитировано

2

Nutritional Strategies to Alleviate Stress and Improve Welfare in Dairy Ruminants DOI Creative Commons
Basiliki Kotsampasi, Maria-Anastasia Karatzia,

Dimitrios Tsiokos

и другие.

Animals, Год журнала: 2024, Номер 14(17), С. 2573 - 2573

Опубликована: Сен. 4, 2024

Dairy ruminants provide a major part of the livestock and agriculture sectors. Due to increase in world population subsequent dairy product demands, sector has been intensified. farming intensification animal nutritional demands average global temperature as well have subjected animals various stress conditions that impact their health welfare. Various management practices strategies proposed studied alleviate these impacts, especially under heat stress, during critical periods, like transition period. Some interventions cope with factors ensure optimal production are inclusion functional fatty acids amino feed additives (minerals, prebiotics, probiotics, essential oils herbs, phytobiotics, enzymes, etc.) proven regulate animals’ metabolism improve antioxidant status immune function. Thus, could be key ensuring optimum growth, milk production, reproduction efficiency. This review summarizes highlights approaches support remarkable metabolic adaptations facing period reduce effects evaluate beneficial on physiology, performance, health,

Язык: Английский

Процитировано

1

Productive performance, rumen parameters, carcass quality, antioxidant profile and methane emission in lambs supplemented with triticale hay DOI Creative Commons

G A Izadi,

Y. Rouzbehan, J. Rezaei

и другие.

Veterinary and Animal Science, Год журнала: 2024, Номер 27, С. 100417 - 100417

Опубликована: Дек. 19, 2024

Язык: Английский

Процитировано

0

Short-Term Effects of Heat Stress on Cow Behavior, Registered by Innovative Technologies and Blood Gas Parameters DOI Creative Commons
Ramūnas Antanaitis, Karina Džermeikaitė, Justina Krištolaitytė

и другие.

Animals, Год журнала: 2024, Номер 14(16), С. 2390 - 2390

Опубликована: Авг. 18, 2024

Heat stress (HS) is one of the key factors affecting an animal's immune system and productivity, as a result physiological reaction combined with environmental factors. This study examined short-term effects heat on cow behavior, recorded by innovative technologies, its impact blood gas parameters, using 56 1070 cows clinically evaluated during second subsequent lactations within first 30 days postpartum. Throughout experiment (from 4 June 2024 until 1 July 2024), behavior parameters (rumination time min/d. (RT), body temperature (°C), reticulorumen pH, water consumption (L/day), activity (h/day)) were monitored specialized SmaXtec boluses employing analyzer (Siemens Healthineers, 1200 Courtneypark Dr E Mississauga, L5T 1P2, Canada). During period, temperature-humidity index (THI), based ambient humidity, was used to calculate THI categorize data into four classes follows: 1-THI 60-63 (4 2024-12 2024); 2-THI 65-69 (13 2024-18 3-THI 73-75 (19 2024-25 4-THI 73-78 (26 2024-1 2024). The results showed that significantly reduced rumination up 70% in highest class (73 78) increased 2%. It also caused 12.6% decrease partial carbon dioxide pressure (pCO2) 32% increase oxygen (pO2), decreasing plasma sodium 1.36% potassium 6%, while increasing chloride 3%. findings underscore critical need for continuous monitoring, early detection, proactive management mitigate adverse impacts dairy health productivity. Recommendations include use advanced monitoring technologies specific parameter tracking detect signs implement more timely interventions.

Язык: Английский

Процитировано

0