1
|
Wang L, Zhang P, Du Y, Wang C, Zhang L, Yin L, Zuo F, Huang W. Effect of heat stress on blood biochemistry and energy metabolite of the Dazu black goats. Front Vet Sci 2024; 11:1338643. [PMID: 38860008 PMCID: PMC11163060 DOI: 10.3389/fvets.2024.1338643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 04/02/2024] [Indexed: 06/12/2024] Open
Abstract
The objective of this study was to determine the effects of heat stress (HS) on physiological, blood biochemical, and energy metabolism in Dazu black goats. Six wether adult Dazu black goats were subjected to 3 experimental periods: high HS (group H, temperature-humidity index [THI] > 88) for 15 d, moderate HS (group M, THI was 79-88) for 15 d, and no HS (group L, THI < 72) for 15 d. Rectal temperature (RT) and respiratory rate (RR) were determined on d 7 and 15 of each period, and blood samples were collected on d 15 of each period. All goats received glucose (GLU) tolerance test (GTT) and insulin (INS) tolerance test on d 7 and d 10 of each period. The results showed that HS decreased dry matter intake (DMI) and INS concentration (p < 0.05), and increased RT, RR, non-esterified fatty acid (NEFA), cortisol (COR), and total protein (TP) concentrations (p < 0.05). Compared to group L, the urea nitrogen (BUN) concentration increased and GLU concentration decreased in group H (p < 0.05). During the GTT, the area under the curve (AUC) of GLU concentrations increased by 12.26% (p > 0.05) and 40.78% (p < 0.05), and AUC of INS concentrations decreased by 26.04 and 14.41% (p < 0.05) in groups H and M compared to group L, respectively. The INS concentrations were not significant among the three groups (p > 0.05) during the ITT. A total of 60 differentially expressed metabolites were identified in response to groups H and M. In HS, changes in metabolites related to carbohydrate metabolism and glycolysis were identified (p < 0.05). The metabolites related to fatty acid β-oxidation accumulated, glycogenic and ketogenic amino acids were significantly increased, while glycerophospholipid metabolites were decreased in HS (p < 0.05). HS significantly increased 1-methylhistidine, creatinine, betaine, taurine, taurolithocholic acid, inosine, and hypoxanthine, while decreasing vitamin E in blood metabolites (p < 0.05). In summary, HS changed the metabolism of fat, protein, and energy, impaired GLU tolerance, and mainly increased amino acid metabolism to provide energy in Dazu black goats.
Collapse
Affiliation(s)
- Le Wang
- College of Animal Science and Technology, Chongqing Beef Cattle Engineering Technology Research Center, Southwest University, Chongqing, China
| | - Pengjun Zhang
- College of Animal Science and Technology, Chongqing Beef Cattle Engineering Technology Research Center, Southwest University, Chongqing, China
| | - Yuxuan Du
- College of Animal Science and Technology, Chongqing Beef Cattle Engineering Technology Research Center, Southwest University, Chongqing, China
| | - Changtong Wang
- College of Animal Science and Technology, Chongqing Beef Cattle Engineering Technology Research Center, Southwest University, Chongqing, China
| | - Li Zhang
- Chongqing Academy of Animal Sciences, Chongqing, China
| | - Li Yin
- College of Animal Science and Technology, Chongqing Beef Cattle Engineering Technology Research Center, Southwest University, Chongqing, China
- Chongqing Animal Husbandry Technology Extension Station, Chongqing, China
| | - Fuyuan Zuo
- College of Animal Science and Technology, Chongqing Beef Cattle Engineering Technology Research Center, Southwest University, Chongqing, China
| | - Wenming Huang
- College of Animal Science and Technology, Chongqing Beef Cattle Engineering Technology Research Center, Southwest University, Chongqing, China
| |
Collapse
|
2
|
El Amiri B, Rahim A. Exploring Endogenous and Exogenous Factors for Successful Artificial Insemination in Sheep: A Global Overview. Vet Sci 2024; 11:86. [PMID: 38393104 PMCID: PMC10891879 DOI: 10.3390/vetsci11020086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/20/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Artificial insemination (AI) plays a vital role in animal breeding programs. AI is applied to enhance animal genetics and facilitate the widespread integration of desirable characteristics with a high potential for productivity. However, in sheep, this biotechnology is not commonly practicable due to multi-factorial challenges, resulting in inconsistent outcomes and unpredictable results. Thoughtful selection of semen donors and recipients based on genetic merit deeply impacts ovine AI outcomes. Additionally, endogenous factors such as breed, age, fertility traits, genetic disorders, and cervical anatomy in ewes contribute to ovine AI success. Extensive research has studied exogenous influences on sexual behavior, reproductive health, and hormonal regulation, all impacting ovine AI success. These exogenous factors include techniques like estrus induction, synchronization, semen handling methods (fresh/chilled/frozen), and insemination methods (cervical/laparoscopic), as well as nutritional factors and climatic conditions. This overview of the literature highlights the endogenous and exogenous challenges facing successful ovine AI and proposes strategies and best practices for improvement. This paper will serve as a guide for understanding and optimizing the success of ovine AI.
Collapse
Affiliation(s)
- Bouchra El Amiri
- Animal Production Unit, Regional Center Agricultural Research of Settat, National Institute for Agricultural Research (INRA), Avenue Ennasr, P.O. Box 415 Rabat Principal, Rabat 10090, Morocco;
- African Sustainable Agriculture Research Institute (ASARI), Mohammed VI Polytechnic University (UM6P), Laayoune 70000, Morocco
| | - Abdellatif Rahim
- Animal Production Unit, Regional Center Agricultural Research of Settat, National Institute for Agricultural Research (INRA), Avenue Ennasr, P.O. Box 415 Rabat Principal, Rabat 10090, Morocco;
- Laboratory of Biochemistry, Neurosciences, Natural Resources and Environment, Faculty of Sciences and Techniques, Hassan First University of Settat, P.O. Box 577, Settat 26000, Morocco
| |
Collapse
|
3
|
Ben Moula A, Moussafir Z, Hamidallah N, El Amiri B. Heat stress and ram semen production and preservation: Exploring impacts and effective strategies. J Therm Biol 2024; 119:103794. [PMID: 38330855 DOI: 10.1016/j.jtherbio.2024.103794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 01/12/2024] [Accepted: 01/12/2024] [Indexed: 02/10/2024]
Abstract
As global warming persists, heat stress (HS) continues to affect animals, particularly those raised in extensive systems such as sheep. As a result, there is a growing body of research investigating the physiological and biological consequences of HS on these animals. Recent studies have specifically examined the effects of climate change, global warming, and HS on gametes. Heat stress has been shown to affect ram semen production, resulting in decreased sperm quality and volume in both fresh and stored samples. This is attributed to the effect of heat on hormone production in the testicles, which is critical for successful spermatogenesis. Such effects can have significant consequences on the fertility of female sheep, which could affect the farmers' revenue. Therefore, farmers and researchers are utilizing various strategies and laboratory techniques to mitigate these negative effects. This review aims to comprehensively evaluate the impact of HS on ram semen production and conservation and analyze the different mitigation strategies at various levels, including management and nutritional interventions. The findings of this review will serve as a critical foundation for the development of targeted interventions and sustainable practices in sheep farming, ensuring resilient and profitable operations in the face of ongoing global climate challenges.
Collapse
Affiliation(s)
- Anass Ben Moula
- Department of Life Sciences, Polydisciplinary Faculty of Larache, Abdelmalek Essaadi University, 745 BP, 92004, Larache, Morocco.
| | - Zineb Moussafir
- Faculty of Science and Technology, Errachidia, Moulay Ismail University, Meknes, Morocco
| | - Naima Hamidallah
- Faculty of Science and Technology, Hassan 1 University, BP 577, 26000, Settat, Morocco
| | - Bouchra El Amiri
- INRA-Regional Center for Agronomic Research of Settat, BP589, Settat, Morocco; African Sustainable Agriculture Research Institute (ASARI), Mohammed VI Polytechnic University (UM6P), 70000, Laayoune, Morocco
| |
Collapse
|
4
|
Samir H, Swelum AA, Abdelnaby EA, El-Sherbiny HR. Incorporation of L-Carnitine in the OvSynch protocol enhances the morphometrical and hemodynamic parameters of the ovarian structures and uterus in ewes under summer climatic conditions. BMC Vet Res 2023; 19:246. [PMID: 37996926 PMCID: PMC10668402 DOI: 10.1186/s12917-023-03814-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 11/10/2023] [Indexed: 11/25/2023] Open
Abstract
Heat stress negatively impacts the reproductive performance of sheep including the efficiency of estrous synchronization regimens. This study aimed to investigate the potential effects of L-Carnitine (LC) administration on the efficacy of the OvSynch protocol in ewes under summer climatic conditions. Ewes were synchronized for estrus using the OvSynch protocol and a dose of LC (20 mg/kg body weight) was intravenously (IV) administered on the same day of PGF2α injection to one group (n = 8; LC group), while other ewes (n = 8; control group) received the same protocol without LC. Ultrasonographic evaluation (including B-mode, color, and pulsed Doppler) was used to assess the morphometrical and hemodynamic parameters of ovarian structures [number, size, and blood flow of follicles (GFs) and corpora lutea (CLs)] and uterus during the estrous phase (Day 0), and on Day 8 post ovulation (luteal phase). Uterine artery blood flow (MUA) was assessed by measuring the resistive index (RI) and pulsatility index (PI) at both stages. The serum samples were collected to measure the concentrations of estradiol (E2), progesterone (P4), and total antioxidant capacity (TAC) using commercial kits. Results revealed a significant (P<0.05) increase in the colored pixel area of GFs and uterus in the LC group (392.84 ± 31.86 and 712.50 ± 46.88, respectively) compared to the control one (226.25 ± 17.74 and 322 ± 18.78, respectively) during Day 0. Circulating E2 and TAC levels were significantly (P<0.05) higher in the LC-treated ewes (31.45 ± 1.53 pg/ml and 1.80 ± 0.13 mM/L, respectively) compared to those in the control ewes (21.20 ± 1.30 pg/ml and 0.98 ± 0.09 mM/L, respectively) during Day 0. Moreover, LC improved the colored pixel area of CLs (2038.14 ± 102.94 versus 1098 ± 82.39) and uterus (256.38 ± 39.28 versus 121.75 ± 11.36) and circulating P4 (2.99 ± 0.26 ng/ml versus1.67 ± 0.15 ng/ml) on Day 8. Values of RI of MUA were significantly lower in the LC group compared to the control one on Day 0 and Day 8 (0.48 ± 0.03 versus 0.72 ± 0.03 and 0.58 ± 0.03 versus 0.78 ± 0.02, respectively). In conclusion, LC incorporation in the OvSynch protocol enhanced the morphometrical and hemodynamic parameters of the ovarian structures and the uterus concomitantly with improvements in the TAC, E2, and P4 concentrations in ewes under hot summer conditions.
Collapse
Affiliation(s)
- Haney Samir
- Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Ayman A Swelum
- Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Elshymaa A Abdelnaby
- Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Hossam R El-Sherbiny
- Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| |
Collapse
|
5
|
Tüfekci H, Sejian V. Stress Factors and Their Effects on Productivity in Sheep. Animals (Basel) 2023; 13:2769. [PMID: 37685033 PMCID: PMC10486368 DOI: 10.3390/ani13172769] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/22/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Products obtained from sheep have an economically important place in the world. Their adaptability to different climatic conditions, their ease of care and feeding, their high utilization of poor pasture areas with low yield and quality, the ease of flock management, their high twinning rate, and their short intergenerational period are some of the advantages of sheep production. Sheep production has the ability to adapt better to environmental stress factors, as can be understood from the presence of sheep in different geographical regions at a global level. However, the changes in environmental conditions and production cause some negative results in animals. All these negative results expose animals to various stress factors (heat, cold, transport, treatment, nutritional, shearing, weaning, etc.). All stress factors that directly and indirectly affect sheep production ultimately lead to compromised performance, decreased productivity, increased mortality, and adverse effects on the immune system. In order to cope with the current stress parameters in animals and to achieve optimum production, a holistic approach is needed according to the environmental conditions and available resources. It is important to consider the factors involved in these responses in order to manage these processes correctly and to develop adequate strategies and improve sheep welfare. This review aimed to reveal the importance of some stress factors in sheep and their effects on sheep productivity.
Collapse
Affiliation(s)
- Hacer Tüfekci
- Department of Animal Science, Faculty of Agriculture, Yozgat Bozok University, Yozgat 66100, Turkey
| | - Veerasamy Sejian
- Rajiv Gandhi Institute of Veterinary Education and Research, Kurumbapet, Pondicherry 605009, India;
| |
Collapse
|
6
|
Sarkar S, Bhatt RS, Mahla AS, Kumar A. Supplementation of Moringa oleifera leaf concentrate pellets on nutrient utilization, antioxidant status, and reproductive performance of prolific ewes during extreme summer months in semi-arid tropical conditions. Trop Anim Health Prod 2023; 55:241. [PMID: 37328676 DOI: 10.1007/s11250-023-03659-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 06/06/2023] [Indexed: 06/18/2023]
Abstract
A feeding trial was conducted for a period of 60 days during extreme summer months to observe the effect of supplementation of Moringa oleifera leaves containing concentrate pellets on nutrient utilization, antioxidant status, and reproductive performance in Avishaan ewes reared under semi-arid condition. Forty adult non-pregnant cyclic ewes (2-3 years, 31.8 ± 0.81 kg body weight) were selected and randomly allocated into 2 groups of 20 animals each, viz., G-I (control) and G-II (treatment). The ewes were grazed on natural pasture for 8 h, offered ad libitum Cenchrus ciliaris hay after grazing and concentrate pellets @ 300 g/animal/day. The ewes in G-I were offered conventional concentrate pellets, whereas G-II ewes were offered concentrate pellets containing 15% Moringa leaves. The mean temperature humidity index during the period of study was 27.5 ± 0.3 and 34.6 ± 0.4 at 0700 h and 1400 h, respectively, indicating severe heat stress. Nutrient intake and utilization were comparable between the two groups. The antioxidant status was higher in G-II ewes as the values of catalase, superoxide dismutase, and total antioxidant capacity were higher (P < 0.05) in G-II ewes compared to G-I. The conception rate was higher (100%) in G-II ewes than G-I ewes (70%). Multiple birth percentage was 77.8% in G-II ewes, and it was comparable with the herd average of Avishaan (74.7%). However, ewes in G-I group exhibited a marked decline in multiple birth percentage (28.6%) than the normal herd average. Hence, it can be concluded that inclusion of Moringa oleifera leaves in feeding of prolific Avishaan ewes improved their antioxidant status resulting in optimum reproductive performance during stressful summer months.
Collapse
Affiliation(s)
- Srobana Sarkar
- ICAR-Central Sheep and Wool Research Institute, Avikanagar, Rajasthan, 304501, India.
| | - R S Bhatt
- ICAR-Central Sheep and Wool Research Institute, Avikanagar, Rajasthan, 304501, India
| | - Ajit Singh Mahla
- ICAR-Central Sheep and Wool Research Institute, Avikanagar, Rajasthan, 304501, India
| | - Arun Kumar
- ICAR-Central Sheep and Wool Research Institute, Avikanagar, Rajasthan, 304501, India
| |
Collapse
|
7
|
van Wettere WHEJ, Kind KL, Gatford KL, Swinbourne AM, Leu ST, Hayman PT, Kelly JM, Weaver AC, Kleemann DO, Walker SK. Review of the impact of heat stress on reproductive performance of sheep. J Anim Sci Biotechnol 2021; 12:26. [PMID: 33583422 PMCID: PMC7883430 DOI: 10.1186/s40104-020-00537-z] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 12/08/2020] [Indexed: 01/03/2023] Open
Abstract
Heat stress significantly impairs reproduction of sheep, and under current climatic conditions is a significant risk to the efficiency of the meat and wool production, with the impact increasing as global temperatures rise. Evidence from field studies and studies conducted using environmental chambers demonstrate the effects of hot temperatures (≥ 32 °C) on components of ewe fertility (oestrus, fertilisation, embryo survival and lambing) are most destructive when experienced from 5 d before until 5 d after oestrus. Temperature controlled studies also demonstrate that ram fertility, as measured by rates of fertilisation and embryo survival, is reduced when mating occurs during the period 14 to 50 d post-heating. However, the contribution of the ram to heat induced reductions in flock fertility is difficult to determine accurately. Based primarily on temperature controlled studies, it is clear that sustained exposure to high temperatures (≥ 32 °C) during pregnancy reduces lamb birthweight and will, therefore, decrease lamb survival under field conditions. It is concluded that both ewe and ram reproduction is affected by relatively modest levels of heat stress (≥ 32 °C) and this is a concern given that a significant proportion of the global sheep population experiences heat stress of this magnitude around mating and during pregnancy. Despite this, strategies to limit the impacts of the climate on the homeothermy, behaviour, resource use and reproduction of extensively grazed sheep are limited, and there is an urgency to improve knowledge and to develop husbandry practices to limit these impacts.
Collapse
Affiliation(s)
- William H E J van Wettere
- The University of Adelaide, School of Animal and Veterinary Sciences, Davies Livestock Research Centre, Roseworthy Campus, Mudla Wirra Rd, Roseworthy, South Australia, 5371, Australia.
| | - Karen L Kind
- The University of Adelaide, School of Animal and Veterinary Sciences, Davies Livestock Research Centre, Roseworthy Campus, Mudla Wirra Rd, Roseworthy, South Australia, 5371, Australia
| | - Kathryn L Gatford
- The University of Adelaide, Robinson Research Institute, Adelaide Medical School, North Terrace, Adelaide, South Australia, 5000, Australia
| | - Alyce M Swinbourne
- The University of Adelaide, School of Animal and Veterinary Sciences, Davies Livestock Research Centre, Roseworthy Campus, Mudla Wirra Rd, Roseworthy, South Australia, 5371, Australia
| | - Stephan T Leu
- The University of Adelaide, School of Animal and Veterinary Sciences, Davies Livestock Research Centre, Roseworthy Campus, Mudla Wirra Rd, Roseworthy, South Australia, 5371, Australia
| | - Peter T Hayman
- The University of Adelaide, School of Agriculture, Food and Wine, Waite Research Institute, Urrbrae, South Australia, 5064, Australia
- South Australian Research and Development Institute, Primary Industries and Regions SA, Government of South Australia, Climate Applications, Waite Research Precinct, Urrbrae, South Australia, 5064, Australia
| | - Jennifer M Kelly
- The University of Adelaide, School of Animal and Veterinary Sciences, Davies Livestock Research Centre, Roseworthy Campus, Mudla Wirra Rd, Roseworthy, South Australia, 5371, Australia
- South Australian Research and Development Institute, Primary Industries and Regions SA, Reproductive Biology, Livestock Sciences, Turretfield Research Centre, 129 Holland Rd, Rosedale, South Australia, 5350, Australia
| | - Alice C Weaver
- The University of Adelaide, School of Animal and Veterinary Sciences, Davies Livestock Research Centre, Roseworthy Campus, Mudla Wirra Rd, Roseworthy, South Australia, 5371, Australia
- South Australian Research and Development Institute, Primary Industries and Regions SA, Reproductive Biology, Livestock Sciences, Turretfield Research Centre, 129 Holland Rd, Rosedale, South Australia, 5350, Australia
| | - David O Kleemann
- The University of Adelaide, School of Animal and Veterinary Sciences, Davies Livestock Research Centre, Roseworthy Campus, Mudla Wirra Rd, Roseworthy, South Australia, 5371, Australia
- South Australian Research and Development Institute, Primary Industries and Regions SA, Reproductive Biology, Livestock Sciences, Turretfield Research Centre, 129 Holland Rd, Rosedale, South Australia, 5350, Australia
| | - Simon K Walker
- South Australian Research and Development Institute, Primary Industries and Regions SA, Reproductive Biology, Livestock Sciences, Turretfield Research Centre, 129 Holland Rd, Rosedale, South Australia, 5350, Australia
| |
Collapse
|
8
|
Ahmadzadeh L, Hosseinkhani A, Taghizadeh A, Ghasemi-Panahi B, Hamidian G. Effect of late gestational feed restriction and glucogenic precursor on behaviour and performance of Ghezel ewes and their offspring. Appl Anim Behav Sci 2020. [DOI: 10.1016/j.applanim.2020.105030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
9
|
Adaptation Mechanisms of Small Ruminants to Environmental Heat Stress. Animals (Basel) 2019; 9:ani9030075. [PMID: 30823364 PMCID: PMC6466405 DOI: 10.3390/ani9030075] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 01/28/2019] [Accepted: 02/18/2019] [Indexed: 12/29/2022] Open
Abstract
Simple Summary Heat stress is an intriguing factor that negatively influences livestock production and reproduction performance. Sheep and goat are among the livestock that can adapt to environmental heat stress via a combination of physiological, morphological, behavioral, and genetic bases. Sheep and goat are able to minimize adverse effect of high thermal stress by invoking behavioral responses such as feeding, water intake, shade seeking, and increased frequency of drinking. Their morphological mechanisms are comprised of body shape and size, light hair color, lightly pigmented skin, and less subcutaneous fat, and the physiological means are that of increased respiration rate (RR), increased sweating rate (SW), reduced metabolic rate, and change in endocrine function. Adaptation in terms of genetics is the heritable trait of animal characteristics which favor the survival of populations. For instance, genes like heat shock proteins 70 (HSP70) and ENOX2 are commonly expressed proteins which protect animals against heat stress. Abstract Small ruminants are the critical source of livelihood for rural people to the development of sustainable and environmentally sound production systems. They provided a source of meat, milk, skin, and fiber. The several contributions of small ruminants to the economy of millions of rural people are however being challenged by extreme heat stress difficulties. Heat stress is one of the most detrimental factors contributing to reduced growth, production, reproduction performance, milk quantity and quality, as well as natural immunity, making animals more vulnerable to diseases and even death. However, small ruminants have successfully adapted to this extreme environment and possess some unique adaptive traits due to behavioral, morphological, physiological, and largely genetic bases. This review paper, therefore, aims to provide an integrative explanation of small ruminant adaptation to heat stress and address some responsible candidate genes in adapting to thermal-stressed environments.
Collapse
|
10
|
Suleymanov SM, Usha BV, Vatnikov YA, Sotnikova ED, Kulikov EV, Parshina VI, Bolshakova MV, Lyshko MU, Romanova EV. Structural uterine changes in postpartum endometritis in cows. Vet World 2018; 11:1473-1478. [PMID: 30532504 PMCID: PMC6247873 DOI: 10.14202/vetworld.2018.1473-1478] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 09/11/2018] [Indexed: 11/16/2022] Open
Abstract
AIM The purpose of this work was to study the dynamics of structural manifestations of acute cases of postpartum endometritis in cows. MATERIALS AND METHODS The light and electron microscopy methods were used when studying structural changes in the endometrium in case of postpartum endometritis in seven cows. Sections of endometrial specimens for light microscopy, 5-7 µm thick, were stained with hematoxylin and eosin and also by Van Gieson's. For electron microscopy, semi-thin sections were stained with Azur-2 in combination with basic fuchsin, as well as contrasting by lead citrate and uranyl acetate. RESULTS As a result of the study, we have established the following: Necrobiosis of the epithelial layer of the mucosa, cellular infiltration with shaped elements of blood in the functional layer, swelling of the cells of the uterine gland, and single microbial cells on the surface of the mucosa. We have noted edema of the stroma of the functional layer of the endometrium, swelling of the epithelial layer of the endometrial mucosa, and swelling of fibroblastic and lymphoid cells. Ultrastructural changes in endometrial cells in case of acute postpartum endometritis in cows are accompanied by the destruction of microvilli on the apical surface of the epithelium, an abundance of coccal microflora on the surface of the epithelium, necrobiosis of epithelial cells, and partial edema of the nucleus, and cytoplasm of the histiocyte. CONCLUSION We had established that acute purulent-catarrhal dystrophic processes were observed in the structural organization of the endometrium. In the depth of catarrhal mucus on the surface of the endometrium, there was an abundance of bacterial flora, with diplococci being prevalent. In ultrastructural organization of the endometrium, we observed deep dystrophic and necrobiotic processes in the parenchyma and endometrial stroma, as well as exudative processes with a change in the integrity of the microcirculatory bed. Thus, to prevent an inflammatory process from turning into a latent form, it is necessary to detect acute postpartum endometritis promptly using diagnostic methods taking into account the obtained parameters of the dynamics of structural changes in the uterine tissues.
Collapse
Affiliation(s)
- S. M. Suleymanov
- Department of Anatomy and Surgery, Voronezh State Agrarian University named after Emperor Peter I, Voronezh, Russia
| | - B. V. Usha
- Department of Veterinary Medicine, Moscow State University of Food Production, Moscow, Russia
| | - Yu. A. Vatnikov
- Department of Veterinary Medicine, Agrarian Technological Institute, Peoples’ Friendship University of Russia (RUDN University), Moscow, Russia
| | - E. D. Sotnikova
- Department of Veterinary Medicine, Agrarian Technological Institute, Peoples’ Friendship University of Russia (RUDN University), Moscow, Russia
| | - Eu. V. Kulikov
- Department of Veterinary Medicine, Agrarian Technological Institute, Peoples’ Friendship University of Russia (RUDN University), Moscow, Russia
| | - V. I. Parshina
- Department of Veterinary Medicine, Agrarian Technological Institute, Peoples’ Friendship University of Russia (RUDN University), Moscow, Russia
| | - M. V. Bolshakova
- Department of Veterinary Medicine, Agrarian Technological Institute, Peoples’ Friendship University of Russia (RUDN University), Moscow, Russia
| | - M. U. Lyshko
- Department of Agrobiotechnology, Agrarian Technological Institute, Peoples’ Friendship University of Russia (RUDN University), Moscow, Russia
| | - E. V. Romanova
- Department of Agrobiotechnology, Agrarian Technological Institute, Peoples’ Friendship University of Russia (RUDN University), Moscow, Russia
| |
Collapse
|
11
|
Gottardi FP, Pannunzio Dias e Silva T, Paraguaio PE, Torreão JNDC, Torreão Marques CA, Bezerra LR, Jácome de Araújo M, Machado LP, Abdalla Filho AL. The role of diet on the rhythm of physiological responses of lactating ewes under heat stress. BIOL RHYTHM RES 2018. [DOI: 10.1080/09291016.2018.1528697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Fernanda Patricia Gottardi
- Department of animal science, Federal University of Piauí, Campus Professora Cinobelina Elvas, Bom Jesus, Piauí, Brazil
| | | | - Patrick Elves Paraguaio
- Department of animal science, Federal University of Piauí, Campus Professora Cinobelina Elvas, Bom Jesus, Piauí, Brazil
| | | | | | - Leilson Rocha Bezerra
- Department of animal science, Federal University of Piauí, Campus Professora Cinobelina Elvas, Bom Jesus, Piauí, Brazil
| | - Marcos Jácome de Araújo
- Department of animal science, Federal University of Piauí, Campus Professora Cinobelina Elvas, Bom Jesus, Piauí, Brazil
| | - Luciana Pereira Machado
- Department of veterinary medicine, Federal University of South frontier, Realeza, Paraná, Brazil
| | - Adibe Luiz Abdalla Filho
- Centre for nuclear energy and agriculture, Laboratory of animal nutrition, Piracicaba, São Paulo, Brazil
| |
Collapse
|
12
|
Behringer V, Deimel C, Hohmann G, Negrey J, Schaebs FS, Deschner T. Applications for non-invasive thyroid hormone measurements in mammalian ecology, growth, and maintenance. Horm Behav 2018; 105:66-85. [PMID: 30063897 DOI: 10.1016/j.yhbeh.2018.07.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 07/24/2018] [Accepted: 07/25/2018] [Indexed: 12/22/2022]
Abstract
Thyroid hormones (THs) play a pivotal role in the regulation of metabolic activity throughout all life stages. Cross-talk with other hormone systems permits THs to coordinate metabolic changes as well as modifications in growth and maintenance in response to changing environmental conditions. The scope of this review is to explain the relevant basics of TH endocrinology, highlight pertinent topics that have been investigated so far, and offer guidance on measuring THs in non-invasively collected matrices. The first part of the review provides an overview of TH biochemistry, which is necessary to understand and interpret the findings of existing studies and to apply non-invasive TH monitoring. The second part focuses on the role of THs in mammalian ecology, and the third part highlights the role of THs in growth and maintenance. The fourth part deals with the advantages and difficulties of measuring THs in non-invasively collected samples. This review concludes with a summary that considers future directions in the study of THs.
Collapse
Affiliation(s)
- V Behringer
- Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany.
| | - C Deimel
- Department of Anthropology, Indiana University Bloomington, 701 E Kirkwood Ave, Bloomington, IN 47405, USA
| | - G Hohmann
- Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany
| | - J Negrey
- Department of Anthropology, Boston University, 232 Bay State Road, Boston, MA 02215, USA
| | - F S Schaebs
- Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany
| | - T Deschner
- Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany
| |
Collapse
|
13
|
Rocha AM, Silva TPDE, Sejian V, Torreão JNDC, Marques CAT, Bezerra LR, Araújo MJD, Saraiva LA, Gottardi FP. Maternal and neonatal behavior as affected by maternal nutrition during prepartum and postpartum period in indigenous sheep. J Vet Behav 2018. [DOI: 10.1016/j.jveb.2017.10.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
14
|
Sejian V, Kumar D, Naqvi SMK. Physiological rhythmicity in Malpura ewes to adapt to cold stress in a semi-arid tropical environment. BIOL RHYTHM RES 2017. [DOI: 10.1080/09291016.2017.1350444] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Veerasamy Sejian
- ICAR-Central Sheep and Wool Research Institute, Malpura, India
- Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bangalore, India
| | - Davendra Kumar
- ICAR-Central Sheep and Wool Research Institute, Malpura, India
| | - S. M. K. Naqvi
- ICAR-Central Sheep and Wool Research Institute, Malpura, India
| |
Collapse
|
15
|
Kumar D, Sejian V, Gaughan JB, Naqvi SMK. Biological functions as affected by summer season-related multiple environmental stressors (heat, nutritional and walking stress) in Malpura rams under semi-arid tropical environment. BIOL RHYTHM RES 2017. [DOI: 10.1080/09291016.2017.1299364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Davendra Kumar
- Division of Physiology and Biochemistry, ICAR-Central Sheep and Wool Research Institute, Avikanagar, India
| | - Veerasamy Sejian
- Division of Physiology and Biochemistry, ICAR-Central Sheep and Wool Research Institute, Avikanagar, India
- Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Bangalore, India
- School of Agriculture and Food Sciences, The University of Queensland, Gatton, Australia
| | - John B. Gaughan
- School of Agriculture and Food Sciences, The University of Queensland, Gatton, Australia
| | - S. M. K. Naqvi
- Division of Physiology and Biochemistry, ICAR-Central Sheep and Wool Research Institute, Avikanagar, India
| |
Collapse
|
16
|
Macías-Cruz U, Gastélum MA, Álvarez FD, Correa A, Díaz R, Meza-Herrera CA, Mellado M, Avendaño-Reyes L. Effects of summer heat stress on physiological variables, ovulation and progesterone secretion in Pelibuey ewes under natural outdoor conditions in an arid region. Anim Sci J 2015; 87:354-60. [DOI: 10.1111/asj.12430] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Accepted: 02/23/2015] [Indexed: 11/30/2022]
Affiliation(s)
- Ulises Macías-Cruz
- Instituto de Ciencias Agrícolas; Universidad Autónoma de Baja California; Valle de Mexicali México
| | - Miguel A. Gastélum
- Instituto de Ciencias Agrícolas; Universidad Autónoma de Baja California; Valle de Mexicali México
| | - Francisco D. Álvarez
- Instituto de Ciencias Agrícolas; Universidad Autónoma de Baja California; Valle de Mexicali México
| | - Abelardo Correa
- Instituto de Ciencias Agrícolas; Universidad Autónoma de Baja California; Valle de Mexicali México
| | - Raúl Díaz
- Facultad de Medicina; Universidad Autónoma de Baja California; Mexicali B.C. México
| | - César A. Meza-Herrera
- Unidad Regional Universitaria de Zonas Áridas; Universidad Autónoma Chapingo; Bermejillo Durango México
| | - Miguel Mellado
- Departamento de Nutrición Animal; Universidad Autónoma Agraria “Antonio Narro”; Saltillo Coahuila México
| | - Leonel Avendaño-Reyes
- Instituto de Ciencias Agrícolas; Universidad Autónoma de Baja California; Valle de Mexicali México
| |
Collapse
|
17
|
Sejian V, Singh AK, Sahoo A, Naqvi SMK. Effect of mineral mixture and antioxidant supplementation on growth, reproductive performance and adaptive capability of Malpura ewes subjected to heat stress. J Anim Physiol Anim Nutr (Berl) 2013; 98:72-83. [PMID: 23332025 DOI: 10.1111/jpn.12037] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Accepted: 12/24/2012] [Indexed: 11/29/2022]
Abstract
This study was conducted to evaluate the effect of mineral and antioxidant supplementation on growth, reproductive performance and physiological adaptability of heat-stressed Malpura ewes. The study was conducted for a period of 21 days in 21 adult Malpura ewes. The ewes were randomly divided into three groups with seven animals each viz. GI (control; n = 7), GII (heat stress; n = 7) and GIII (heat stress + mineral and antioxidant supplementation; n = 7). The animals were stall fed ad libitum with the diet consisting of 70% roughage and 30% concentrate. GI ewes were maintained under normal controlled condition in the shed, while GII and GIII ewes were subjected to heat stress by exposing them to 42 °C in the climatic chamber. The parameters studied were feed intake (FI), water intake (WI), body weight, body condition score (BCS), physiological, biochemical and endocrine responses. Heat stress significantly altered FI, water intake, BCS, respiration rate and rectal temperature in the afternoon, oestrus duration, estradiol, progesterone, Hb, PCV, plasma glucose, total protein, cortisol, T3 and T4 levels while mineral and antioxidant supplementation ameliorated this heat stress effect on the parameters studied. Further, the adverse effect of heat stress on the productive and reproductive efficiency of Malpura ewes was reduced considerably by mineral mixture and antioxidant supplementation. This is evident from the non-significant difference in BCS, oestrus duration and plasma estradiol between GI and GIII in this study. Hence, it is very pertinent to conclude from this study that mineral mixture and antioxidant supplementation were able to protect Malpura ewes against heat stress.
Collapse
Affiliation(s)
- V Sejian
- Division of Physiology and Biochemistry, CSWRI, Avikanagar, Rajasthan, India
| | | | | | | |
Collapse
|