Member Dr. Gajanan
MemberForum Replies Created
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Farmers can effectively manage water quality for their birds by focusing on sanitation, acidification, and system maintenance. This includes regular monitoring of water quality, proper disinfection techniques like chlorination, and maintaining water delivery systems to prevent contamination.
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The effectiveness of a medication in a flock is assessed by monitoring the health and performance of the animals, as well as by using specific diagnostic tests. Direct methods like fecal egg counts (FEC) and coproantigen ELISA tests can be used to assess the presence and burden of parasites, while indirect methods like weight gain, production efficiency, and body condition scoring can indicate the overall impact of the medication on animal health.
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To mitigate heat stress in animals through feed formulations, adjustments should focus on increasing energy density, optimizing protein levels, and supplementing with electrolytes and vitamins. Additionally, managing feed intake timing and particle size, and potentially using wet feeding can be beneficial.
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Carrying capacity refers to the maximum population size of a species that an environment can sustainably support, while critical standing crop is the biomass (or living matter) of a population at the point where its growth rate begins to decline due to approaching the carrying capacity
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Necrosis in poultry is primarily caused by infections and toxic conditions that lead to tissue death. A major specific cause is necrotic enteritis, which results from the overgrowth of the bacterium Clostridium perfringens (types A and C) in the intestines. This bacterium normally inhabits the gut but becomes pathogenic when predisposing factors disrupt the intestinal microflora, such as coccidial infections or certain diets high in animal proteins, cereals with high non-starch polysaccharide content, such as wheat, barley, and rye.
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Prophylaxis in poultry involves preventive measures to protect birds from infectious diseases to improve productivity. This includes measures such as, vaccines, probiotics, anticoccidials, management and biosecurity, etc., and traditionally often antibiotics for bacterial diseases.
However, with growing consumer and regulatory concerns over antibiotic resistance in humans and animals, the use of antibiotics should be restricted to only treating birds that are suffering from confirmed bacterial diseases, and not for growth promotion or prophylaxis. In many countries the use of antibiotics is legislated, restricted their use to treatment only.
Furthermore, prophylactic antibiotics can improve growth and reduce disease, they may disrupt the gut microbiome and immune development in early life, impacting long-term health and resistance to infections.
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Yes
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Dear Rahul, your comment is interesting, I am not aware of any adverse effect of phytoestrogens in soybean meal on fertility in male broiler breeders. Can you please cite references? Perhaps this should also be in the Poultry With Dr. Jeffery Escobar discussion group?
My limited information is:
“In conclusion, treatment with the appropriate dose of soy isoflavones (5 mg/kg) promoted testicular development in young breeder roosters, which was closely related to the synthesis and secretion of reproductive hormones (GnRH, FSH, LH, and T). The regulation of hormones may be related to changes in the StAR mRNA levels.”
Effects of dietary soybean isoflavones (SI) on reproduction in the young breeder rooster https://www.sciencedirect.com/science/article/abs/pii/S0378432016303049#:~:text=Highlights,and%203%CE%B2%2DHSD%20mRNA%20level.
“In bird males, it was observed that a diet rich in phytoestrogens (Pes) promotes testicular growth due to the increase in hormonal secretion, probably due to the regulatory participation of isoflavones in the feedback mechanism of the hypothalamic-pituitary-gonadal axis, which in turn regulates the secretion of FSH, LH and T4 that promotes the growth and maturation of Sertoli and Leydig cells. The administered dose also has an important role, it is documented that genistein has partial agonist effects in roosters at doses of 50-200 mmol/kg, and acts as an antagonist at doses of 400-500 mol/kg; in addition, PEs have the ability to inhibit the activity of steroidogenic enzymes, and influence the viability of sex hormones through the regulation of their binding proteins; they alter brain centers related to sexual behavior as they cross the blood-brain barrier and bind to ER α and ß.”
Effects of phytoestrogens on the reproductive physiology of productive species. Review https://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S2007-11242022000300803&lng=es&nrm=iso&tlng=en#:~:text=In%20poultry%2C%20the%20effects%20produced,ER%20%CE%B1%20and%20%C3%9F80.
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Andrew, thank you for posting. Do you mind if I share with the Asia feed milling group, citing you as the source?
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Yes it is very important for sustainable poultry sector
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Absolutely. Poultry farm integration is a sustainable way of poultry production, with reduced waste and more output from a single production cycle.
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How can prophylaxis in poultry birds
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What causes necrosis in poultry bird
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Poultry farm integration refers to the coordination of all stages of poultry production, from breeding to processing, to improve efficiency and reduce costs. It can also involve integrating poultry farming with other agricultural activities like fish farming or crop production. This integrated approach aims to create a symbiotic system where byproducts from one component benefit another, leading to increased productivity and reduced waste.
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Good information
