Bovine subclinical mastitis reduces milk yield and economic return

Gonçalves, Juliano Leonel; Kamphuis, C.; Martins, Cristian Marlon de Magalhães Rodrigues; Barreiro, Juliana Regina; Tomazi, Tiago; Gameiro, Augusto Hauber; Hogeveen, H.; Santos, Marcos Veiga dos

doi:10.1016/j.livsci.2018.01.016

Cited by 86 publications

(70 citation statements)

References 39 publications

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“…Subclinical mastitis was associated with a 6% decrease in daily milk production, on average, compared to when there was no subclinical mastitis, which is similar to another study in SDFs in Kenya [29]. Inflammation of mammary tissue and damage by mastitiscausing pathogens resulted in reduced milk secretion and letdown [50]. is effect may have negatively affected the observed impact of increased milk production from the cows' diet supplementation with the shrubs.…”

Section: Discussionsupporting

confidence: 79%

“…Being pregnant was associated with a reduction in mean daily milk production in this study population (Tables 5 and 6). Pregnant cows spend more of their energy to support pregnancy and consequently reduce the amount of milk produced [48][49][50]. In some cases, farmers said they even chose to reduce frequency of milking when pregnant cows seemed to lose body condition too much, which would also lead to lower daily milk production.…”

Section: Discussionmentioning

confidence: 99%

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Effects of Calliandra and Sesbania on Daily Milk Production in Dairy Cows on Commercial Smallholder Farms in Kenya

Makau

VanLeeuwen

Gitau

et al. 2020

Veterinary Medicine International

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ere is a growing interest in protein supplementation of dairy-cow diets using leguminous shrubs. e study objective was to ascertain the association between diet supplementation with Calliandra calothyrsus and Sesbania sesban and milk production in dairy cattle on commercial smallholder farms. is trial involved 235 cows from 80 smallholder dairy farms in Kenya randomly allocated to 4 intervention groups: (1) receiving Calliandra and Sesbania and nutritional advice; (2) receiving reproductive medicines and advice; (3) receiving both group 1 and 2 interventions; and (4) receiving neither intervention. Farm nutritional practices and management data were collected in a questionnaire, and subsequent physical examinations, mastitis tests, and milk production of cows on the farm were monitored approximately monthly for 16 months. Descriptive and univariable statistical analyses were conducted, and multivariable mixed-model regression was used for identification of factors associated (P < 0.05) with daily milk production. e mean milk production was 6.39 liters/cow/day (SD � 3.5). Feeding Calliandra/Sesbania to cows was associated (P < 0.0005) with an increase in milk produced by at least 1 liter/cow/day with each kg fed. Other variables positively associated with ln daily milk production in the final model included feeding of Napier grass, amount of silage and dairy meal fed, body condition score, and appetite of the cow. Other variables negatively associated with ln daily milk production in the final model included amount of maize germ fed, days in milk, sudden feed changes, pregnancy, and subclinical mastitis. In conclusion, our field trial data suggest that use of Calliandra/Sesbania through agroforestry can improve milk production in commercial smallholder dairy farms in Kenya. Agroforestry land use systems can be adopted as a way for dairy farmers to cope with feed shortages and low crude protein in farm-available feeds for their cows.

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Section: Discussionsupporting

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Effects of Calliandra and Sesbania on Daily Milk Production in Dairy Cows on Commercial Smallholder Farms in Kenya

Makau

VanLeeuwen

Gitau

et al. 2020

Veterinary Medicine International

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“…The dairy industry in Pakistan faces several health hazards all the times; amongst which mastitis is the common problem and risk factor in the development of the dairy sector (Khan et al, 2015). It causes loss of future calf, reduction in milk production, condemnation of milk, replacement of animals, culling and decrease quarter-wise production (Goncalves et al, 2018). S. aureus is highly tolerant due to endorsement of a variety of genetic capabilities, amongst one prominent of them is methicillin-resistant S.…”

Section: Introductionmentioning

confidence: 99%

Epidemiology and Antimicrobial Susceptibility of Methicillin-Resistant Staphylococcus aureus in Cattle of Pothohar Region, Pakistan

Khan¹

2019

PVJ

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Sub-clinical mastitis has remained the leading cause for decline in production of dairy animals as a silent epidemic all the times in Pakistan. A questionnaire-based cross-sectional study was conducted to assess the prevalence and potential risk factors for sub-clinical mastitis in the Pothohar region of Pakistan in 2018. Total of 104 cattle milk samples were collected from commercial and subsistent dairy farms. CMT positive samples were cultured and biochemical tests were conducted before confirmed on PCR for mecA gene Methicillin Resistant Staphylococcus aureus (MRSA) bacteria. In-vitro antibiotic susceptibility was also assessed. An overall prevalence of 71.1% was found; where cross-bred was found more susceptible (80.7%) as compared to other breeds. MecA gene-MRSA prevalence based on PCR was 54%. On regression analysis the potential risk factors identified here included; daily milk yield, parity, udder shape, teat morphology, shed type, quarantine of new animals and deworming of animals (OR>1; P-value<0.05). In MRSA confirmed isolates, Penicillin group was found highly resistant (92.5%) amongst all the groups. While amongst individual antibiotics Amoxicillin was found highly (100%) resistant followed by Cefixime and Spectinomycin. Whereas based on sensitivity Quinolone (Moxifloxacin 95%) group was the most sensitive (91.7%) followed by Sulphonamides (Sulphaphenazole 87.5%) and Amino-glycoside (Gentamycin 90%). An emerging pattern of mecA gene MRSA was recorded here with alarming subclinical mastitis prevalence in the study area. Immediate preventive measures need to be taken to address the problem. The findings of the current study will assess in control and prevention of subclinical mastitis in Pakistan. A, 2019. Epidemiology and antimicrobial susceptibility of methicillin-resistant staphylococcus aureus in cattle of Pothohar Region, Pakistan. Pak Vet J, 39(3): 438-442. http://dx.

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“…Caracterizada por um processo inflamatório na GM, essa enfermidade é causa de altos prejuízos à cadeia leiteira (ROLLIN; DHUYVETTER; OVERTON, 2015). Dentre os efeitos negativos causados pela mastite, destacam-se a redução na qualidade e na quantidade do leite produzido (JANZEN, 1970;GONÇALVES et al, 2018), custos com tratamentos e honorários veterinários (VAN SOEST et al, 2016), além da redução da vida produtiva das vacas e aumento da taxa de descarte (HERTL et al, 2018).…”

Section: Mastite Em Vacas Leiteirasunclassified

“…Quando a CCS é ≤200.000 células/mL é indicativo da ausência de IIM (DOHOO; LESLIE, 1991). Por outro lado, a CCS >200.000 células/mL é indicativo de IIM, o que resulta em perdas em produção de leite (DÜRR et al, 2008;GONÇALVES et al, 2018) e em seus derivados (MAZAL et al, 2007 (ZEHNER et al, 1986;SMITH, 2003). O acesso de bactérias oportunistas ao tecido mamário resulta em resposta inflamatória imediata, com aumento crescente no número de neutrófilos provenientes dos processos quimiotáticos.…”

Section: Mastite Subclínicaunclassified

>b<Eficácia do selante interno de tetos na secagem de vacas leiteiras sobre a saúde do úbere>/b<

Freu¹

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Primeiramente agradeço a Deus, pela dádiva da vida e por me dar discernimento e força durante todas as etapas deste estudo. Obrigado por me permitir errar, aprender e crescer. Agradeço também pelas vacas, obras de sua criação e que se tornaram uma paixão pra mim e fruto de meu trabalho. À minha família, que apesar da distância, jamais me deixaram faltar amor, carinho, companheirismo e confiança. Vocês souberam entender minhas ausências, souberam compreender e me apoiar durante os momentos de dificuldade, mas também vibraram comigo todas as minhas conquistas. Obrigado mãe, pai e irmão por cada palavra de incentivo e apoio, amo vocês! À minha namorada Larissa, a joia que a vida me presenteou, a quem admiro e sou muito grato. Obrigado por suportar e ser paciente durante os momentos de angústia e tristeza. Tua companhia, teu abraço, teu amor e palavras de carinho amenizaram a dor e abrilhantaram meus dias. Ao meu orientador Prof. Marcos Veiga dos Santos, pela confiança, por todas as oportunidades e pela orientação. O senhor é um grande incentivador e responsável pelo meu crescimento pessoal e profissional. Sem dúvidas contribuíste muito para que mais um de meus êxitos (a finalização desta dissertação) fosse possível.

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Bovine subclinical mastitis reduces milk yield and economic return

Cited by 86 publications

References 39 publications

Effects of Calliandra and Sesbania on Daily Milk Production in Dairy Cows on Commercial Smallholder Farms in Kenya

Effects of Calliandra and Sesbania on Daily Milk Production in Dairy Cows on Commercial Smallholder Farms in Kenya

Epidemiology and Antimicrobial Susceptibility of Methicillin-Resistant Staphylococcus aureus in Cattle of Pothohar Region, Pakistan

>b<Eficácia do selante interno de tetos na secagem de vacas leiteiras sobre a saúde do úbere>/b<

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