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1.
Rota A. Veronesi M. C. Volpe S. Riccardi A. Battocchio M. 《Veterinary research communications》2007,31(1):197-199
Veterinary Research Communications - Rota, A., Veronesi, M.C., Volpe, S., Riccardi, A. and Battocchio, M., 2007. Estradiol-17β, progesterone and testosterone plasma concentrations during... 相似文献
2.
Accornero P. Luvar S. Favole A. Macchi E. Motta M. Baratta M. 《Veterinary research communications》2007,31(1):161-164
Veterinary Research Communications - Accornero, P., Luvarà, S., Favole, A., Macchi, E., Motta, M., Baratta, M., 2007. Biological role of the HGF/MET ligand/receptor couple in bovine mammary... 相似文献
3.
Pistilli M. G. Bernab N. Gloria A. Mattioli M. Barboni B. 《Veterinary research communications》2007,31(1):189-191
Veterinary Research Communications - Pistilli, M.G., Bernabò, N., Gloria, A., Mattioli, M. and Barboni, B., 2007. Effect of CB1 receptors on boar sperm plasma membrane. Veterinary Research... 相似文献
4.
Veterinary Research Communications - Pugliese, A., De Majo, M. and Pugliese, M., 2007. Immunological profile in clinical practice. Veterinary Research Communications, 31(Suppl. 1), 121–124 相似文献
5.
Suter SE Gouthro TA McSweeney PA Nash RA Haskins ME Felsburg PJ Henthorn PS 《Veterinary research communications》2006,30(8):881-901
We have used a murine MSCV-based bicistronic retroviral vector, containing the common gamma chain (γc) and enhanced green
fluorescent protein (EGFP) cDNAs, to optimize retroviral transduction of canine cells, including an adherent canine thymus
fibroblast cell line, Cf2Th, as well as normal canine CD34+ bone marrow (BM) cells. Both canine cell types were shown to express Ram-1 (the amphotropic retroviral receptor) mRNA. Supernatants
containing infectious viruses were produced using both stable (PA317) and transient (Phoenix cells) amphotropic virus producer
cell lines. Centrifugation (spinfection) combined with the addition of polybrene produced the highest transduction efficiencies,
infecting ∼75% of Cf2Th cells. An average of 11% of highly enriched canine CD34+ cells could be transduced in a protocol that utilized spinfection and plates coated with the fibronectin fragment CH-296
(Retronectin). Indirect assays showed the vector-encoded canine γc cDNA produced a γc protein that was expressed on the cell
surface of transduced cells. This strategy may result in the transduction of sufficient numbers of CD34+ BM cells to make the treatment of canine X-linked severe combined immunodeficiency and other canine genetic diseases feasible.
Suter, S.E., Gouthro, T.A., McSweeney, P.A., Nash, R.A., Haskins, M.E., Felsburg, P.J. and P.S. Henthorn, 2006. Optimized
transduction of canine paediatric CD34+ cells using an MSCV-based bicistronic vector. Veterinary Research Communications, 30(8), 881–901 相似文献
6.
Saxena MK Singh VP Kumar AA Chaudhuri P Singh VP Shivachandra SB Biswas A Sharma B 《Veterinary research communications》2006,30(8):851-861
Repetitive extragenic palindromic sequence-based PCR (REP-PCR) was used to characterize 67 field isolates of Pasteurella multocida originating from different animal species and geographical regions of India. REP-PCR was found to be rapid and reproducible
(three repeats were done). These isolates yielded different 23 profiles which were clustered into eight groups. The discrimination
index was moderate (D value 0.83). Somatic and antigenic typing of the isolates did not reveal any correlation with REP-PCR profiles. There was
no host-specific, type-specific, region-specific or pathenogenicity-specific pattern. The REP profiles of isolates obtained
from wild animals were similar to those obtained from domestic animals. Two common bands were present in all the isolates
irrespective of somatic or antigenic types. The results were not comparable with earlier findings, which had shown high discrimination
index and correlation with disease presentation.
Saxena, M.K., Singh, V.P., Kumar, A.A., Chaudhuri, P., Singh, V.P., Shivachandra, S.B., Biswas, A. and Sharma, B., 2006. REP–PCR
analysis of Pasteurella multocida isolates from wild and domestic animals in India. Veterinary Research Communications, 30(8), 851–861 相似文献
7.
Hoque MA Skerratt LF Rahman MA Alim MA Grace D Gummow B Rabiul Alam Beg AB Debnath NC 《Tropical animal health and production》2011,43(2):431-440
Duck rearing is an important component of sustainable living in poor rural communities, especially as a source of subsistence.
A study was conducted on 118 households (N = 1,373 Jinding ducks, Anas platyrhynchus) from December 2002 to February 2004 on Hatia Island in Bangladesh with the aim of identifying the factors that limit the
health and production of Jinding ducks. Overall duck mortality was 29.3%, with disease (19.7%) being a more significant factor
than predation (9.6%; p = 0.001). Duck mortality also varied significantly among study zones (p < 0.001). Common diseases were duck plague (21.1%) and duck cholera (32.1%). Helminth infection was prevalent, with endemic
trematode (Prosthogonimus spp., Trichobilharzia spp., Echinostoma spp.) and nematode (Cyathostoma bronchialis, Amidostomum anseris, Heterakis gallinarum, Capillaria spp., and Echinuria spp.) infections and epidemic cestode infections due to Hymenolepsis setigera. The median egg production rate per duck per household was 93 for a 6-month laying period. The odds of diminished egg production
(average ≤ 93 eggs per duck per household for a 6-month laying period) was 25.4 times higher in ducks that were kept in traditional
duck houses (p < 0.001) and 14.2 times higher in ducks that experienced delays in the onset of sexual maturity (days 191 and 280; p < 0.001). Ducks that were provided snails for a shorter period of time over the laying period were 18.2 times more likely
to produce fewer eggs than their longer fed peers (p = 0.002). In conclusion, duck mortalities due to diseases and predation and parasitic infections appear to be common constraints
on household duck production on Hatia Island. Additionally, improving duck housing and providing longer nutritional supplementation
with snails increased the production capabilities of household-raised Jinding ducks on Hatia Island. 相似文献
8.
LaSota vaccination may not protect against the lesions of velogenic newcastle disease in chickens 总被引:1,自引:0,他引:1
Two groups of six weeks old cockerels comprising 40 immunized and 40 non-immunized birds were inoculated intramuscularly with
VGF-1, which is a local Nigerian strain of velogenic Newcastle disease virus (VNDV). Immunized birds did not show any clinical
signs except significant loss (p < 0.05) in body weight on days 5 and 20 post inoculation (PI). But the non-immunized birds
showed clinical signs of disease characterized by anorexia and drowsiness from day 2 PI. These were followed on day 3 PI by
depression, diarrhoea, opisthotonus, weight loss (p < 0.05) and high mortalities (96.9%). Both the immunized and non-immunized
groups showed severe atrophy of the bursa, spleen and thymus. Histopathological section of these lymphoid organs showed necrosis
and depletion of lymphocytes. Both the gross and microscopic lesions were more severe in the non-immunized birds. Marked ballooning
degeneration was observed in the bursal follicles of the non-immunized birds. This lesion has not been described earlier for
any other disease and could be diagnostic for VND. Our results also showed that VND can cause marked atrophy of the lymphoid
organs, which may lead to immunosupression without the characteristic signs of Newcastle disease (ND) in vaccinated chickens.
This no doubt emphasizes the limitation of vaccination as a biosecurity measure in poultry industry.
Ezema, W.S., J.O.A. Okoye and Nwanta, J.A., 2008. LaSota vaccination may not protect against the lesions of velogenic Newcastle
disease in chickens. Tropical Animal Health and Production 相似文献
9.
Sequence Analysis of the Nucleoprotein Gene of Asian Lineage Peste des Petits Ruminants Vaccine Virus 总被引:3,自引:0,他引:3
Muthuchelvan D Sanyal A Balamurugan V Dhar P Bandyopadhyay SK 《Veterinary research communications》2006,30(8):957-963
The complete nucleotide sequence of the nucleocapsid (N) protein of the peste-des-petits ruminants vaccine virus (PPRV Sungri/96)
belonging to the Asian lineage was determined. The gene was 1692 nucleotides in length and encoded a polypeptide of 525 amino
acids. The PPRV Sungri/96 N gene has a nucleotide homology of 92% for PPRV Nigeria 75/1 to 55.5% for canine distemper virus.
At amino acid level the homology was 94.1% with PPRV Nigeria 75/1, while with other morbilliviruses, PPRV Sungri/96 had only
71.4–64.9% amino acid identity. The phosphorylation prediction reveals eight conserved sites across morbilliviruses, whereas
in the C-terminal portion of the protein the sites are not conserved. Phylogenetic analysis of different N proteins of morbilliviruses
revealed five well-defined clusters as observed previously. To the best of our knowledge this is the first report describing
the nucleocapsid gene sequence of PPRV Indian isolate.
Muthuchelvan, D., Sanyal, A., Balamurugan,V., Dhar, P. and Bandyopadhyay, S.K., 2006. Sequence analysis of the nucleoprotein
gene of Asian lineage peste des petits ruminants vaccine virus.Veterinary Research Communications, 30(8), 957–963 相似文献
10.
van den Hoven R Duvigneau JC Hartl RT Gemeiner M 《Veterinary research communications》2006,30(8):921-928
On four occasions, four horses with heaves and four horses with small airway inflammatory diseases inhaled 0.9% saline based
aerosol mixtures with or without lipopolysaccharides (LPS). Prior to the first saline and LPS inhalation, horses were untreated,
while three and a half days prior to the third and forth inhalation horses had received 0.8 μ g/kg clenbuterol intravenously
twice daily.
The messenger RNA (mRNA) expression of tumour necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-4, IL-6, IL-8, IL-10 and
interferon- γ (IFN- γ) was investigated by RT-PCR, all of which were expressed in the white blood cells of samples collected.
Inhalation of LPS only changed the cytokine expression profile of IL-10, IL-4 and TNF-α mRNA which were higher after challenge
with LPS. However in those horses that were treated with clenbuterol the LPS-induced IL-10 mRNA expression was shown to be
suppressed. Further changes in IL-4 and TNF-α were not significant. Thus the results of this study indicated that clenbuterol
can modulate the expression of IL-10 mRNA in peripheral white blood cells in those horses with small airway diseases that
have been exposed to LPS.
van den Hoven, R., Duvigneau, J.C., Hartl, R.T. and Gemeiner, M., 2006. Clenbuterol affects the expression of messenger RNA
for interleukin 10 in peripheral leukocytes from horses challenged intrabronchially with lipopolysaccharides. Veterinary Research
Communications, 30(8), 921–928 相似文献
11.
Nakamoto Y Ozawa T Katakabe K Nishiya K Mashita T Morita Y Yasuda N Ishii Y Nakaichi M Itamoto K 《Veterinary research communications》2008,32(8):609-617
Fibrocartilaginous embolism (FCE), a disorder of rapid onset featured by nonprogressive paralysis and paresis of four legs,
shows clinical symptoms very similar to those of other disorders, e.g., disk herniation. We examined 10 animals diagnosed
with FCE based on clinical symptoms and magnetic resonance imaging (MRI) findings in a retrospective study to examine the
relationship between onset-to-diagnosis/treatment initiation time and prognosis of FCE. Statistical procedures, including
Fisher’s exact probability test, were conducted. All animals in a group, in which the diagnosis was made and treatment was
initiated after an elapse of <15 days after onset, showed improved symptoms; the group showed a positive correlation (r = 0.76)
between “onset-to-symptom improvement time” and “onset-to-diagnosis/treatment initiation time”. Furthermore, the mean onset-to-diagnosis/
treatment initiation times were 2.67 days and 10.25 days in groups without and with sequelae, respectively; the time was significantly
(P < 0.02) shorter in the group without sequelae. A significant difference was found between the groups in early diagnosis and
treatment initiation. Our study indicates that the early precise diagnosis for acutely developed paralysis and paresis of
four legs through testings including MRI, as well as the early onset of their treatment are important to obtain a favorable
prognosis. 相似文献
12.
The use of low-quality whole dates in broilers’ diets was evaluated. The apparent metabolizable energy (AMEn) of whole dates
and date pits was determined with or without a β-mannanase-based enzyme (Hemicell – a registered trademark of ChemGen Corp., Gaithersburg, MD. Dried Bacillus lentus fermentation solubles with 158 million units/kg minimum enzyme activity. Recommended usage rate is 0.4 g kg−1 of feed. ChemGen Corp., Gaithersburg, MD, USA). A 3 × 2 factorial arrangement consisting of whole dates (0, 175, and 350 g kg−1) and enzyme (0 or 0.4 g kg−1) was performed to assess the effect of the enzyme on the nutritive value of whole dates (experiment 2) in broilers’ diet.
Enzyme improved AMEn contents of the whole dates and date pits. The diets containing 175 or 350 g kg−1 whole dates produced body weight gain (BWG) similar to those obtained without dates. Enzyme improved BWG and feed conversion
ratio throughout the experimental period. In conclusion, whole dates can be included in broiler diets at levels up to 350 g kg−1. In addition, β-mannanase supplementation would have beneficial effects on performance and immunity in birds fed on corn–soy or corn–soy–whole
dates diets. 相似文献
13.
Summary A review is given of the present knowledge of the epidemiology of bovine trypanosomiasis in Colombia. Search of the literature,
discussions with veterinarians, and original observations have given information on the distribution and prevalence of the
pathogenicTrypanosoma vivax and non-pathogenicT. theileri-like organisms.T. evansi infections of cattle may exist but were not detected. Improved methods of diagnosis forT. vivax are required to elucidate problems of: differentiating clinically similar diseases; the susceptibility of cattle relative
to age; transmission; wild animal reservoirs, and economic importance. The indirect fluorescent antibody test is an important
technique to this end.
E. A. Wells 10th April, 1967–12th July, 1967, and 4th Sept., 1969–13th Dec., 1969; W. A. Page, 7th Sept., 1969–13th Dec., 1969. 相似文献
Sumario Se hace una revisión del conocimiento actual de la epidemiología de la tripa nosomiasis bovina en la república de Colombia. La revisión de literatura, de talladas discusiones con médicos Veterinariosy observaciones personales han proporcionado información sobre la distribución y prevalencia delT. vivax (uno de los tripanosomas patógenos) y de los tripanosomas semejantes alT. theileri (un tripanosoma no patógeno). ElT. evansi es posible que exista en los vacunos pero no fué detectado. Se requieren mejores métodos de diagnóstico paraT. vivax con el objeto de aclarar problemas tales como: diferenciación clínica de enfermedades simila res; la susceptibilidad de los bovinos según su edad; métodos de transmisión; el papel de los animales salvajes como reservorios y la importacia económica de las tripanosomiasis. Para conseguir estos objectivos se requiere el uso de la técnica de la fluorescencia indirecta de anticuerpos.
Résumé Il s’agit d’une revue des connaissances actuelles sur l’épidémiologie de la trypanosomose bovine en Colombie. Des recherches bibliographiques, des entretiens avec les vétérinaires et des observations originales ont permis d’acquérir des renseignements sur la distribution et l’importance deT. vivax pathogène et d’un trypanosome non pathogène ressemblant àT. theileri. Les infections du bétail àT. evansi peuvent exister, mais n’ont pas été décelées. Des méthodes améliorées de diagnostic sont nécessaires pourT. vivax afin d’élucider certains problèmes: diagnostic différentiel avec des maladies cliniquement semblables, sensibilité du bétail en fonction de son age, transmission, animaux sauvages ‘réservoirs’, importance économique. On suggère que la méthode d’immunofluorescence indirecte pourrait être très utile à ces fins.
E. A. Wells 10th April, 1967–12th July, 1967, and 4th Sept., 1969–13th Dec., 1969; W. A. Page, 7th Sept., 1969–13th Dec., 1969. 相似文献
14.
Kalyan Sundar Das Ghansham Singh Shyam S. Paul Raman Malik Parminder S. Oberoi Sitanshu M. Deb 《Tropical animal health and production》2011,43(1):35-39
The effect of washing frequency on the physiological responses and performance of buffalo calves was studied in hot summer.
Thirty Nili-Ravi calves aged 4–6 months were divided into three uniform groups of ten. The calves of group A, B and C were
washed two (9 a.m. and 3 p.m.), three (8 a.m., 12 noon and 4 p.m.) and four (8 a.m., 11 a.m., 2 p.m. and 5 p.m.) times in
a day, respectively. They were washed with water for 5 min at a stretch. The mean linear body measurements, body weight, dry
matter intake through concentrate, green fodder and physiological responses, i.e. rectal temperature, pulse rate and respiration
rate before and after washing under different daily washing frequency were recorded fortnightly. The average daily gain was
also calculated. The mean total dry matter intake was increased with the increase frequency of washing. The maximum mean daily
body weight gain was recorded in group C followed by group B and A. There were statistically significant (P < 0.05) differences between the three washing groups. Calves were more comfortable with increase number of washing in a day
in hot summer. The rectal temperature, pulse rate and respiration rate also varied significantly (P < 0.05) between the three experiment groups. It can be concluded that daily four times washing in hot summer had more beneficial
effects over three and two times washing of young Nili-Ravi buffalo calves to decrease rectal temperature, pulse rate and
respiration rate and to increase average feed utilization and daily gain under tropical climate. 相似文献
15.
A study was conducted to determine whether a combination of vitamin E and selenium was able to counteract the immunosuppressive
effects of chronic toxicity of malathion in chicks. The chicks were divided into three groups. The first group received malathion
10 mg/kg body weight; the second group received the same dose of malathion but was supplemented with vitamin E and selenium
for 60 days; and the third group served as the control. The concentration of total immunoglobulins and circulatory immune
complexes decreased following the administration of malathion, whereas the supplementation of the diet with vitamin E and
selenium partially counteracted this effect. The histopathological changes in the bursa of Fabricius due to malathion were
consistent with these findings. Supplementation with vitamin E and selenium partially ameliorated the degenerative changes
in the bursa of Fabricius.
Sodhi, S., Sharma, A. and Brar, R.S., 2006. A protective effect of vitamin E and selenium in ameliorating the immunotoxicity
of malathion in chicks. Veterinary Research Communications, 30(8), 935–942 相似文献
16.
Serum amyloid A (SAA) is an acute-phase protein in cats likely to be useful for diagnosing and monitoring inflammatory diseases,
especially if rapid, reliable and automated assays can be made available. A commercially available automated human SAA turbidimetric
immunoassay (SAA-TIA) was evaluated for determination of SAA in cats. Intra-assay and inter-assay imprecisions were in the
ranges 2.1–9.9% and 7.0–12.5%, respectively, and without significant inaccuracy. Eighty-eight cats were divided into groups
according to (A) the presence or absence of an acute-phase response (APR) (n = 23 and 65, respectively) and (B) clinical diagnosis (clinically healthy cats, cats diagnosed with inflammatory/infectious
diseases, endocrine/metabolic diseases, neoplastic diseases, and miscellaneous disorders (n=43, 13, 8, 4 and 20, respectively)). The observed SAA concentrations were, as expected, different for (A) cats with and without
an APR and (B) cats with inflammatory/infectious diseases compared to other diagnostic groups, except neoplastic diseases.
In conclusion, the SAA concentration in cats could be measured reliably using the commercially available TIA designed for
measuring human SAA, which should facilitate implementation of the parameter for routine diagnostic purposes.
Hansen, A.E., Schaap, M.K. and Kjelgaard-Hansen, M., 2006. Evaluation of a commercially available human serum amyloid A (SAA)
turbidimetric immunoassay for determination of feline SAA concentration. Veterinary Research Communications, 30(8), 863–872 相似文献
17.
Ali Reza Homayounimehr Habibollah Dadras Abdolhamid Shoushtari Seyyed Ali Pourbakhsh 《Tropical animal health and production》2010,42(6):1291-1297
To determine the genetic relationship of Iranian viruses, the haemagglutinin (HA) genes from ten isolates of H9N2 viruses
isolated from commercial chickens in Iran during 1998–2002 were amplified and sequenced. Sequence analysis and phylogenetic
studies were conducted by comparing each isolate with those of the available H9N2 strains at GenBank. All these ten isolates
had the same sequence –R-S-S-R/G-L– of proteolytic cleavage site of the HA. Nucleotide sequence comparisons of HA gene from
Iranian isolates showed 95.2–99.1% identity within the group. Five isolates had leucine (L) at position 226 instead of glutamine
(Q). Phylogenetic analysis showed that all our isolates belonged to the G1-like sublineage. Also these isolates showed some
degree of homology with other H9N2 isolates e.g., 94.3–96.9% with qu/HK/G1/97, 96.1–98.6% with pa/Chiba/1/97, 95.6–98.2% with
pa/Narita/92A/98, and 94.0–96.3% with HK/1073/99. On the basis of phylogenetic and molecular characterization evidence, we
concluded that the H9N2 subtype influenza viruses circulating in chicken flocks in Iran since 1998–2002 had a common origin.
The results of this study indicated that all Iranian viruses have the potential to emerge as highly pathogenic influenza virus,
and considering the homology of these isolates with human H9N2 strains, it seems that the potential of these avian influenza
isolates to infect human should not be overlooked. 相似文献
18.
Bindelle J Ilunga Y Delacollette M Kayij MM di M'Balu JU Kindele E Buldgen A 《Tropical animal health and production》2007,39(6):419-426
Bindelle, J., Ilunga, Y., Delacollette, M., Muland Kayij, M., Umba di M’Balu, J., Kindele, E. and Buldgen, A. Voluntary intake,
chemical composition and in vitro digestibility of fresh forages fed to Guinea pigs in periurban rearing systems of Kinshasa
(Democratic Republic of Congo). Tropical Animal Health and Production.
The daily voluntary intake (DVI) of Guinea pigs (GP) fed 15 fresh forages used in periurban rearing systems of Kinshasa (Democratic
Republic of Congo) was investigated. In order to determine the best forages combination for GP diet, DVI was compared to their
nutritional value measured in vitro using 1) a pepsin-pancreatin hydrolysis, 2) an gas fermentation test on the hydrolysed residues with an inoculum prepared
from GP faeces, and 3) the chemical composition of the offered feeds and the hydrolysis residues.
The forages ranking based on the DVI was correlated to the NDF content, but not to their nutritional values determined in vitro. According to their high DVI (from 4.23 to 7.75 g/kg liveweigth), and their valuable in vitro nutritional values (crude protein ranging from 261 to 279 g crude protein kg−1DM, pepsin-pancreatin digestibilities of the dry matter from 0.55 to 0.59 and final gas production from 170 to 196 l kg−1DM), Desmodium intortum, Euphorbia heterophylla or Amaranthus hybridus, can be suggested to the farmers to complement the usual diet distributed to the GP based on Panicum maximum. 相似文献
19.
Evaluation of a 3% surf solution (surf field mastitis test) for the diagnosis of subclinical bovine and bubaline mastitis 总被引:1,自引:1,他引:0
Muhammad Ghulam Naureen Abeera Asi Muhammad Nadeem Saqib Muhammad Fazal-ur-Rehman 《Tropical animal health and production》2010,42(3):457-464
Purpose
To evaluate a 3% solution of household detergent viz., Surf Excel (Surf field mastitis test, SFMT) vis-à-vis California mastitis test (CMT), Whiteside test (WST), somatic cell counts (SCC; cut off limit = 5 × 105 cells per millilitre) and bacteriological cultures for the detection of subclinical mastitis in quarter foremilk samples (n = 800) of dairy cows and buffaloes. 相似文献20.
Sejian Veerasamy Maurya Vijai Prakash Naqvi Sayeed M. K. 《Tropical animal health and production》2010,42(8):1763-1770
A study was conducted to assess the effect of combined stresses (thermal and nutritional) on physiological adaptability and
growth performance of Malpura ewes. Twenty-eight adult Malpura ewes (average BW 33.56 kg) were used in the present study.
The ewes were divided into four groups, viz., GI (n = 7; control), GII (n = 7; thermal stress), GIII (n = 7; nutritional stress), and GIV (n = 7; combined stress). The animals were stall-fed with a diet consisting of 60% roughage and 40% concentrate. GI and GII
ewes were provided with ad libitum feeding, while GIII and GIV ewes were provided with restricted feed (30% intake of GI ewes)
to induce nutritional stress. GII and GIV ewes were kept in climatic chamber at 40°C and 55% RH for 6 h/day between 1000 and
1600 hours to induce thermal stress. The study was conducted for a period of two estrus cycles. The parameters studied were
feed intake, water intake, physiological responses (viz., respiration rate, pulse rate, and rectal temperature), body weight,
and body condition scoring (BCS) of ewes. Both thermal and combined stress significantly (P < 0.05) affected the feed intake, water intake, respiration rate, and rectal temperature. The feeding schedule followed in
the experiment significantly (P < 0.05) altered the body weight and BCS between the groups. The results reveal that when compared with thermal stress, nutritional
stress had less significant effect on the parameters studied. However, when both these stresses were coupled, it had a significant
influence on all the parameters studied in these ewes. It can be concluded from this study that when two stressors occur simultaneously,
the total cost may have severe impact on biological function. 相似文献