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www.benisonmedia.com  ARTICLE  Think Grain Think Feed - Volume 11 | Issue 7 | May 2025  The Importance of Balance:  role in the absorption of   phosphorus, which equates   www.benisonmedia.com

         Think Grain Think Feed - Volume 11 | Issue 7 | May 2025

 Recent Advances in Calcium and
                                                            to about 6 kg of Di-Calcium
                                  both calcium and
        Total Calcium (Ca) to
 Phosphorus Nutrition for Broilers
        Available Phosphorus(P)
                                  phosphorus. A deficiency in
                                                            Phosphate (DCP) per ton of
                                                            feed.
                                  vitamin D  reduces calcium
        Ratio
                                          3
        The interplay between
 (An Indian Perspective)
                                  leading to bone disorders
        calcium and phosphorus is
                                                            metabolites 25-(OH)-D  and
                                  like rickets and poor growth
                                                            1,25-(OH)  -D —have
        so strong that an excess or   and phosphorus uptake,   Vitamin D and its   3
                                                                    2
                                                                       3
 Dr. Vinod Koskewar, Premium Chick Feed and Dr. Sushant Labh, Kemin Industries South Asia
        deficiency of one mineral   performance. There is an   numerous functions in the
        directly affects the utilization   inverse relationship between   avian system,
 Introduction  production), cellular function, and
        of the other. The         vitamin D  levels and mineral   though most
                                          3
 Calcium (Ca) and phosphorus (P) are   DNA/RNA synthesis (E. Humer et al.,
        recommended dietary ratio   requirements—higher     attention is
 essential macro-minerals in broiler   2015).
        of Ca to P for broilers   dietary vitamin D  allows for   focused on calcium
                                                3
 nutrition, playing a crucial role in   Enzymatic and Hormonal
        typically ranges from 1.5:1 to   slightly reduced levels of   and phosphorus
 skeletal development, metabolic   Interactions
        2:1 (Rafael F. Sens et al.,   calcium and phosphorus.  metabolism, bone
 functions, and overall growth   Vitamin D  regulates the absorption of
 3      2021). An imbalance can   Dietary supplementation   health, and
 performance. These minerals must be   calcium and phosphorus, An
                                            2
                                               3
 supplied in the right balance to   imbalance of these minerals can   cause the following issues:  with 25-(OH) -D  positively   eggshell structures
        ·   Excess Calcium: Reduces   impacts performance, tibia   of broilers and
 maximize feed efficiency, promote   hinder enzymatic processes essential
           phosphorus absorption,   ash, and serum          layers.  Plant
 strong bone formation, and prevent   for digestion and growth (Markus
           lowers feed efficiency,   concentration of calcium and   sources of vitamin
 metabolic disorders. In India, where   Rodehutscord et al., 2022).
 Dr. Vinod Koskewar  poultry farming is a rapidly growing   Sources of Calcium and Phosphorus  and impairs the   phosphorus. This   D are insufficient to   Dr. Sushant Labh
                                  supplementation can also
                                                            meet the full needs
 Dr. Vinod Koskewar is Head Nutritionist at   sector, optimizing Ca and P nutrition is   Common feed ingredients providing   digestibility of other   spare some available   of birds.   Dr. Sushant Labh works as National Techno-
 Premium Chick Feed Pvt Ltd. He is a hardcore   vital to improving bird health and farm   nutrients like fats and   Commercial Manager at Kemin Industries
 poultry commercial nutritionist who has spent   profitability. The availability of mineral   these minerals include:  proteins (Markus   phosphorus in the diet, even   Technically, dietary   South Asia. He is an experienced animal feed
 2 decades in feed formulations and quality   ·   Calcium: Limestone, dicalcium   Rodehutscord et al.,   phytase enzymes are   supplementation   technologist with around 15 years of
 sources, variability in ingredient
 control across multiple geographies. His   phosphate (DCP), monocalcium   included (accounting for   with 1,25-(OH) -D    experience in the field of nutritional
 expertise is poultry nutrition & feed   digestibility, and reliance on plant-  2022).  2  3  formulation across species, feed mill
 phosphate (MCP), meat and bone   calcium, available        is more effective
 formulation optimizing bird health and   based feeds necessitate precise   ·   Excess Phosphorus: Leads   management, quality control, feed enzyme
 producers profitability which is backed by   meal (MBM), and fish meal.  phosphorus, and sodium   than 25-(OH)-D  in   matrix application and formulating problem
 supplementation strategies—including   to poor bone                    3
 science and driven by results.  ·   Phosphorus: DCP, MCP, MBM, and   matrix). In many cases, the   alleviating negative   specific product solutions. He has expertise in
 the use of phytase enzymes to   mineralization and                            application of research based updated modern
 plant-based sources (e.g., phytate   phosphorus-sparing effect of   effects associated
 enhance phosphorus bioavailability.   hinders calcium retention               nutritional concepts for South Asian feed
 phosphorus).  (Laura Shiromi David et   25-(OH) -D  occurs without   with calcium and   formulations.
                                        2
                                           3
 This article explores the latest
 Calcium and Phosphorus   al., 2023).  any noticeable changes in   phosphorus
 advances in Ca and P nutrition for
 Recommendations for Broilers     tibia morphology. At 250   imbalances and dietary
 broilers, highlighting their impact on   Calcium, Phosphorus, and
                                  mg/kg 1,25(OH) -D  can    vitamin D deficiency. In
                                               2
                                                 3
 growth, feed formulation, and   Broilers require different levels of   Vitamin D  Synergy  spare almost 0.1% available   broilers 1,25-(OH)  -D  can
                 3
 sustainability in the Indian poultry   calcium and phosphorus at various life   Vitamin D  plays a crucial   2  3
                3
 industry.  stages. Breeding companies such as
 Cobb and Ross regularly publish
 Role of Calcium and Phosphorus in   Table 1:Comparison of Cobb Total Calcium and Available Phosphorus
 standard nutrient specifications and   Requirements for year 2018 and 2022
 Broilers
 update them based on ongoing   Cobb Total Calcium requirement (%)
 Bone Development and Strength
 research and field performance. In
 Approximately 99% of calcium and   BREED   NUTRITION SPECS YEAR    D 0-8   D 9-18   D 19-28   D >29
 recent years, the recommended levels
 80% of phosphorus in a broiler's body   COBB   2022   0.96   0.80   0.74    0.72
 of both minerals—except during the
 are stored in the skeleton. These   COBB   2018   0.90   0.84    0.76       0.76
 early stages—have been slightly
 minerals are indispensable for
 reduced.              DIFFERENCE               0.06    -0.04     -0.02      -0.04
 formation of strong, healthy bones
 The table 1 & 2 illustrate the current      DIFFERENCE %   6.7   -4.8   -2.6   -5.3
 capable of supporting rapid growth
 calcium and phosphorus
 and high meat yield.      Cobb Available Phosphorus requirement (%)
 recommendations according to Cobb
 Metabolic Functions  BREED   NUTRITION SPECS YEAR    D 0-8   D 9-18   D 19-28   D >29
 and Ross guidelines. In practice,
 Calcium plays a vital role in nerve   COBB   2022   0.54   0.40   0.37      0.36
 poultry nutritionists in India typically
 transmission, muscle contraction, and   COBB   2018   0.45   0.42   0.38    0.38
 follow these standards or make slight
 blood clotting. Phosphorus is crucial
 adjustments based on local experience      DIFFERENCE   0.09   -0.02   -0.01   -0.02
 for energy metabolism (ATP
 and farm-specific conditions.     DIFFERENCE %   20.0   -4.8     -2.6       -5.3
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